/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 06:00:23,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 06:00:23,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 06:00:23,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 06:00:23,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 06:00:23,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 06:00:23,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 06:00:23,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 06:00:23,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 06:00:23,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 06:00:23,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 06:00:23,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 06:00:23,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 06:00:23,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 06:00:23,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 06:00:23,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 06:00:23,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 06:00:23,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 06:00:23,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 06:00:23,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 06:00:23,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 06:00:23,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 06:00:23,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 06:00:23,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 06:00:23,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 06:00:23,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 06:00:23,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 06:00:23,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 06:00:23,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 06:00:23,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 06:00:23,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 06:00:23,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 06:00:23,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 06:00:23,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 06:00:23,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 06:00:23,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 06:00:23,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 06:00:23,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 06:00:23,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 06:00:23,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 06:00:23,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 06:00:23,651 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 06:00:23,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 06:00:23,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 06:00:23,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 06:00:23,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 06:00:23,678 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 06:00:23,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 06:00:23,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 06:00:23,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 06:00:23,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 06:00:23,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 06:00:23,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 06:00:23,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 06:00:23,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 06:00:23,679 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 06:00:23,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 06:00:23,680 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 06:00:23,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 06:00:23,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 06:00:23,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 06:00:23,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 06:00:23,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 06:00:23,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 06:00:23,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 06:00:23,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 06:00:23,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 06:00:23,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 06:00:23,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 06:00:23,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 06:00:23,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 06:00:23,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 06:00:24,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 06:00:24,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 06:00:24,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 06:00:24,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 06:00:24,044 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 06:00:24,045 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-20 06:00:24,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c6dbc2d/5cbe463038b94753badc374b1331c324/FLAGb13b36b60 [2020-07-20 06:00:24,840 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 06:00:24,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-20 06:00:24,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c6dbc2d/5cbe463038b94753badc374b1331c324/FLAGb13b36b60 [2020-07-20 06:00:25,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c6dbc2d/5cbe463038b94753badc374b1331c324 [2020-07-20 06:00:25,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 06:00:25,122 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 06:00:25,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 06:00:25,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 06:00:25,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 06:00:25,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:00:25" (1/1) ... [2020-07-20 06:00:25,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65940f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:25, skipping insertion in model container [2020-07-20 06:00:25,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:00:25" (1/1) ... [2020-07-20 06:00:25,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 06:00:25,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 06:00:25,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:00:25,967 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 06:00:26,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:00:26,141 INFO L208 MainTranslator]: Completed translation [2020-07-20 06:00:26,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26 WrapperNode [2020-07-20 06:00:26,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 06:00:26,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 06:00:26,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 06:00:26,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 06:00:26,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (1/1) ... [2020-07-20 06:00:26,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (1/1) ... [2020-07-20 06:00:26,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (1/1) ... [2020-07-20 06:00:26,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (1/1) ... [2020-07-20 06:00:26,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (1/1) ... [2020-07-20 06:00:26,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (1/1) ... [2020-07-20 06:00:26,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (1/1) ... [2020-07-20 06:00:26,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 06:00:26,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 06:00:26,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 06:00:26,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 06:00:26,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (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 06:00:26,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 06:00:26,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 06:00:26,396 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 06:00:26,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 06:00:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 06:00:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 06:00:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 06:00:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 06:00:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 06:00:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 06:00:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 06:00:28,138 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 06:00:28,139 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 06:00:28,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:00:28 BoogieIcfgContainer [2020-07-20 06:00:28,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 06:00:28,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 06:00:28,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 06:00:28,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 06:00:28,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:00:25" (1/3) ... [2020-07-20 06:00:28,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa6081f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:00:28, skipping insertion in model container [2020-07-20 06:00:28,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:00:26" (2/3) ... [2020-07-20 06:00:28,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa6081f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:00:28, skipping insertion in model container [2020-07-20 06:00:28,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:00:28" (3/3) ... [2020-07-20 06:00:28,158 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-07-20 06:00:28,170 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 06:00:28,180 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 06:00:28,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 06:00:28,228 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 06:00:28,228 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 06:00:28,228 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 06:00:28,229 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 06:00:28,229 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 06:00:28,229 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 06:00:28,229 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 06:00:28,229 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 06:00:28,256 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-20 06:00:28,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 06:00:28,267 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:00:28,268 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] [2020-07-20 06:00:28,269 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:00:28,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:00:28,275 INFO L82 PathProgramCache]: Analyzing trace with hash -281448013, now seen corresponding path program 1 times [2020-07-20 06:00:28,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:00:28,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48016231] [2020-07-20 06:00:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:00:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:28,835 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 06:00:28,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48016231] [2020-07-20 06:00:28,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:00:28,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:00:28,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54634545] [2020-07-20 06:00:28,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:00:28,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:00:28,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:00:28,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:00:28,869 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-07-20 06:00:32,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:00:32,300 INFO L93 Difference]: Finished difference Result 902 states and 1625 transitions. [2020-07-20 06:00:32,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 06:00:32,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-07-20 06:00:32,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:00:32,346 INFO L225 Difference]: With dead ends: 902 [2020-07-20 06:00:32,347 INFO L226 Difference]: Without dead ends: 564 [2020-07-20 06:00:32,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-20 06:00:32,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-07-20 06:00:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 376. [2020-07-20 06:00:32,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-07-20 06:00:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 528 transitions. [2020-07-20 06:00:32,465 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 528 transitions. Word has length 56 [2020-07-20 06:00:32,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:00:32,468 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 528 transitions. [2020-07-20 06:00:32,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:00:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 528 transitions. [2020-07-20 06:00:32,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 06:00:32,492 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:00:32,492 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:00:32,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 06:00:32,493 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:00:32,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:00:32,494 INFO L82 PathProgramCache]: Analyzing trace with hash 123351809, now seen corresponding path program 1 times [2020-07-20 06:00:32,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:00:32,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664677141] [2020-07-20 06:00:32,495 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:00:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:00:32,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664677141] [2020-07-20 06:00:32,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:00:32,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 06:00:32,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839866391] [2020-07-20 06:00:32,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 06:00:32,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:00:32,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 06:00:32,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 06:00:32,979 INFO L87 Difference]: Start difference. First operand 376 states and 528 transitions. Second operand 8 states. [2020-07-20 06:00:35,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:00:35,722 INFO L93 Difference]: Finished difference Result 1134 states and 1534 transitions. [2020-07-20 06:00:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-20 06:00:35,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-07-20 06:00:35,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:00:35,730 INFO L225 Difference]: With dead ends: 1134 [2020-07-20 06:00:35,731 INFO L226 Difference]: Without dead ends: 764 [2020-07-20 06:00:35,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-20 06:00:35,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-07-20 06:00:35,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 564. [2020-07-20 06:00:35,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-07-20 06:00:35,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 750 transitions. [2020-07-20 06:00:35,817 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 750 transitions. Word has length 139 [2020-07-20 06:00:35,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:00:35,821 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 750 transitions. [2020-07-20 06:00:35,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 06:00:35,821 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 750 transitions. [2020-07-20 06:00:35,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-20 06:00:35,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:00:35,835 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:00:35,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 06:00:35,836 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:00:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:00:35,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1050217491, now seen corresponding path program 1 times [2020-07-20 06:00:35,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:00:35,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713827260] [2020-07-20 06:00:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:00:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:36,149 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:00:36,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713827260] [2020-07-20 06:00:36,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198134598] [2020-07-20 06:00:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@17b8d025 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:36,299 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@17b8d025 issued 4 check-sat command(s) [2020-07-20 06:00:36,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:00:36,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 06:00:36,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:00:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:00:36,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 06:00:36,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 06:00:36,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120410751] [2020-07-20 06:00:36,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 06:00:36,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:00:36,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 06:00:36,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:00:36,442 INFO L87 Difference]: Start difference. First operand 564 states and 750 transitions. Second operand 3 states. [2020-07-20 06:00:37,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:00:37,621 INFO L93 Difference]: Finished difference Result 1674 states and 2258 transitions. [2020-07-20 06:00:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 06:00:37,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-07-20 06:00:37,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:00:37,633 INFO L225 Difference]: With dead ends: 1674 [2020-07-20 06:00:37,634 INFO L226 Difference]: Without dead ends: 1116 [2020-07-20 06:00:37,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:00:37,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-07-20 06:00:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-07-20 06:00:37,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-07-20 06:00:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1450 transitions. [2020-07-20 06:00:37,689 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1450 transitions. Word has length 165 [2020-07-20 06:00:37,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:00:37,690 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1450 transitions. [2020-07-20 06:00:37,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 06:00:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1450 transitions. [2020-07-20 06:00:37,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-20 06:00:37,694 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:00:37,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:00:37,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-20 06:00:37,906 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:00:37,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:00:37,907 INFO L82 PathProgramCache]: Analyzing trace with hash 502777661, now seen corresponding path program 1 times [2020-07-20 06:00:37,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:00:37,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662159858] [2020-07-20 06:00:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:00:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:38,294 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:00:38,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662159858] [2020-07-20 06:00:38,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044414288] [2020-07-20 06:00:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a66a312 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:38,491 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a66a312 issued 4 check-sat command(s) [2020-07-20 06:00:38,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:00:38,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 06:00:38,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:00:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:00:38,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 06:00:38,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 06:00:38,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320664401] [2020-07-20 06:00:38,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 06:00:38,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:00:38,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 06:00:38,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:00:38,628 INFO L87 Difference]: Start difference. First operand 1116 states and 1450 transitions. Second operand 3 states. [2020-07-20 06:00:39,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:00:39,793 INFO L93 Difference]: Finished difference Result 1856 states and 2488 transitions. [2020-07-20 06:00:39,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 06:00:39,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-07-20 06:00:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:00:39,808 INFO L225 Difference]: With dead ends: 1856 [2020-07-20 06:00:39,809 INFO L226 Difference]: Without dead ends: 1854 [2020-07-20 06:00:39,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:00:39,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2020-07-20 06:00:39,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1304. [2020-07-20 06:00:39,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-07-20 06:00:39,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1769 transitions. [2020-07-20 06:00:39,881 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1769 transitions. Word has length 189 [2020-07-20 06:00:39,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:00:39,882 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1769 transitions. [2020-07-20 06:00:39,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 06:00:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1769 transitions. [2020-07-20 06:00:39,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-07-20 06:00:39,888 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:00:39,889 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 06:00:40,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:40,105 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:00:40,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:00:40,106 INFO L82 PathProgramCache]: Analyzing trace with hash 837695806, now seen corresponding path program 1 times [2020-07-20 06:00:40,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:00:40,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418584396] [2020-07-20 06:00:40,108 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:00:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:40,333 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 06:00:40,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418584396] [2020-07-20 06:00:40,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645565900] [2020-07-20 06:00:40,334 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4eacf4b7 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:40,466 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4eacf4b7 issued 4 check-sat command(s) [2020-07-20 06:00:40,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:00:40,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 06:00:40,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:00:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 06:00:40,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 06:00:40,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-20 06:00:40,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613460191] [2020-07-20 06:00:40,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:00:40,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:00:40,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:00:40,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 06:00:40,582 INFO L87 Difference]: Start difference. First operand 1304 states and 1769 transitions. Second operand 5 states. [2020-07-20 06:00:42,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:00:42,273 INFO L93 Difference]: Finished difference Result 3194 states and 4515 transitions. [2020-07-20 06:00:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 06:00:42,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2020-07-20 06:00:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:00:42,290 INFO L225 Difference]: With dead ends: 3194 [2020-07-20 06:00:42,291 INFO L226 Difference]: Without dead ends: 1896 [2020-07-20 06:00:42,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 06:00:42,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2020-07-20 06:00:42,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1870. [2020-07-20 06:00:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-07-20 06:00:42,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2428 transitions. [2020-07-20 06:00:42,378 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2428 transitions. Word has length 209 [2020-07-20 06:00:42,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:00:42,379 INFO L479 AbstractCegarLoop]: Abstraction has 1870 states and 2428 transitions. [2020-07-20 06:00:42,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:00:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2428 transitions. [2020-07-20 06:00:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-20 06:00:42,387 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:00:42,388 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 06:00:42,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:42,603 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:00:42,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:00:42,603 INFO L82 PathProgramCache]: Analyzing trace with hash -456723841, now seen corresponding path program 1 times [2020-07-20 06:00:42,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:00:42,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662752531] [2020-07-20 06:00:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:00:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 98 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 06:00:42,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662752531] [2020-07-20 06:00:42,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458643927] [2020-07-20 06:00:42,957 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@780da015 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:43,104 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@780da015 issued 4 check-sat command(s) [2020-07-20 06:00:43,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:00:43,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 06:00:43,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:00:43,201 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 06:00:43,202 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:00:43,204 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:00:43,242 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:00:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 06:00:43,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 06:00:43,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2020-07-20 06:00:43,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639743676] [2020-07-20 06:00:43,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:00:43,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:00:43,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:00:43,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-20 06:00:43,330 INFO L87 Difference]: Start difference. First operand 1870 states and 2428 transitions. Second operand 5 states. [2020-07-20 06:00:45,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:00:45,101 INFO L93 Difference]: Finished difference Result 4298 states and 5508 transitions. [2020-07-20 06:00:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 06:00:45,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-07-20 06:00:45,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:00:45,119 INFO L225 Difference]: With dead ends: 4298 [2020-07-20 06:00:45,120 INFO L226 Difference]: Without dead ends: 2434 [2020-07-20 06:00:45,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-07-20 06:00:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2020-07-20 06:00:45,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2422. [2020-07-20 06:00:45,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2422 states. [2020-07-20 06:00:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3032 transitions. [2020-07-20 06:00:45,245 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3032 transitions. Word has length 212 [2020-07-20 06:00:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:00:45,245 INFO L479 AbstractCegarLoop]: Abstraction has 2422 states and 3032 transitions. [2020-07-20 06:00:45,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:00:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3032 transitions. [2020-07-20 06:00:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-07-20 06:00:45,250 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:00:45,250 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 06:00:45,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:45,464 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:00:45,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:00:45,464 INFO L82 PathProgramCache]: Analyzing trace with hash -657639750, now seen corresponding path program 1 times [2020-07-20 06:00:45,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:00:45,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709307564] [2020-07-20 06:00:45,465 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:00:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 128 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 06:00:46,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709307564] [2020-07-20 06:00:46,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142008229] [2020-07-20 06:00:46,217 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1960a74a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:46,399 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1960a74a issued 4 check-sat command(s) [2020-07-20 06:00:46,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:00:46,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 06:00:46,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:00:46,571 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 06:00:46,572 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:00:46,576 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:00:46,623 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:00:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:00:46,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 06:00:46,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-07-20 06:00:46,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099681766] [2020-07-20 06:00:46,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-20 06:00:46,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:00:46,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-20 06:00:46,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-07-20 06:00:46,801 INFO L87 Difference]: Start difference. First operand 2422 states and 3032 transitions. Second operand 14 states. [2020-07-20 06:00:46,961 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-07-20 06:00:52,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:00:52,487 INFO L93 Difference]: Finished difference Result 4945 states and 6250 transitions. [2020-07-20 06:00:52,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-20 06:00:52,488 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 223 [2020-07-20 06:00:52,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:00:52,505 INFO L225 Difference]: With dead ends: 4945 [2020-07-20 06:00:52,506 INFO L226 Difference]: Without dead ends: 2846 [2020-07-20 06:00:52,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2020-07-20 06:00:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2020-07-20 06:00:52,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2796. [2020-07-20 06:00:52,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2796 states. [2020-07-20 06:00:52,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 3224 transitions. [2020-07-20 06:00:52,609 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 3224 transitions. Word has length 223 [2020-07-20 06:00:52,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:00:52,609 INFO L479 AbstractCegarLoop]: Abstraction has 2796 states and 3224 transitions. [2020-07-20 06:00:52,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-20 06:00:52,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 3224 transitions. [2020-07-20 06:00:52,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-07-20 06:00:52,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:00:52,617 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:00:52,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-20 06:00:52,832 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:00:52,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:00:52,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1026423962, now seen corresponding path program 1 times [2020-07-20 06:00:52,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:00:52,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857104024] [2020-07-20 06:00:52,834 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:00:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:00:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 245 proven. 94 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-07-20 06:00:53,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857104024] [2020-07-20 06:00:53,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047141683] [2020-07-20 06:00:53,890 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@575dfc9f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:00:54,090 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@575dfc9f issued 4 check-sat command(s) [2020-07-20 06:00:54,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:00:54,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 06:00:54,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:00:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-07-20 06:00:54,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 06:00:54,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2020-07-20 06:00:54,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766046037] [2020-07-20 06:00:54,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 06:00:54,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:00:54,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 06:00:54,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-20 06:00:54,303 INFO L87 Difference]: Start difference. First operand 2796 states and 3224 transitions. Second operand 13 states. [2020-07-20 06:01:01,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:01,983 INFO L93 Difference]: Finished difference Result 6366 states and 7549 transitions. [2020-07-20 06:01:01,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-07-20 06:01:01,984 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 358 [2020-07-20 06:01:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:02,008 INFO L225 Difference]: With dead ends: 6366 [2020-07-20 06:01:02,009 INFO L226 Difference]: Without dead ends: 3942 [2020-07-20 06:01:02,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2020-07-20 06:01:02,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2020-07-20 06:01:02,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3184. [2020-07-20 06:01:02,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-20 06:01:02,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3716 transitions. [2020-07-20 06:01:02,131 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3716 transitions. Word has length 358 [2020-07-20 06:01:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:02,132 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 3716 transitions. [2020-07-20 06:01:02,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 06:01:02,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3716 transitions. [2020-07-20 06:01:02,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-07-20 06:01:02,144 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:02,145 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-20 06:01:02,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:02,359 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:02,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:02,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1567093203, now seen corresponding path program 1 times [2020-07-20 06:01:02,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:02,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768891104] [2020-07-20 06:01:02,362 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 448 proven. 6 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-07-20 06:01:03,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768891104] [2020-07-20 06:01:03,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31807484] [2020-07-20 06:01:03,364 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6631fcad No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:03,608 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6631fcad issued 4 check-sat command(s) [2020-07-20 06:01:03,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:03,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 06:01:03,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:03,682 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 06:01:03,683 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:03,685 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:03,712 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 449 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-07-20 06:01:03,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 06:01:03,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-20 06:01:03,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293831389] [2020-07-20 06:01:03,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 06:01:03,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:03,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 06:01:03,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-20 06:01:03,981 INFO L87 Difference]: Start difference. First operand 3184 states and 3716 transitions. Second operand 10 states. [2020-07-20 06:01:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:08,179 INFO L93 Difference]: Finished difference Result 6271 states and 7338 transitions. [2020-07-20 06:01:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-20 06:01:08,180 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 442 [2020-07-20 06:01:08,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:08,198 INFO L225 Difference]: With dead ends: 6271 [2020-07-20 06:01:08,199 INFO L226 Difference]: Without dead ends: 3054 [2020-07-20 06:01:08,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2020-07-20 06:01:08,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2020-07-20 06:01:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 3000. [2020-07-20 06:01:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3000 states. [2020-07-20 06:01:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 3326 transitions. [2020-07-20 06:01:08,295 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 3326 transitions. Word has length 442 [2020-07-20 06:01:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:08,297 INFO L479 AbstractCegarLoop]: Abstraction has 3000 states and 3326 transitions. [2020-07-20 06:01:08,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 06:01:08,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 3326 transitions. [2020-07-20 06:01:08,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2020-07-20 06:01:08,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:08,314 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:01:08,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:08,528 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:08,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:08,529 INFO L82 PathProgramCache]: Analyzing trace with hash 808508418, now seen corresponding path program 1 times [2020-07-20 06:01:08,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:08,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667996969] [2020-07-20 06:01:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 828 proven. 104 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-07-20 06:01:09,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667996969] [2020-07-20 06:01:09,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859561235] [2020-07-20 06:01:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@61cf20d3 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:10,048 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@61cf20d3 issued 4 check-sat command(s) [2020-07-20 06:01:10,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:10,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 06:01:10,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:10,135 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 06:01:10,136 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:10,137 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-20 06:01:10,137 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:10,174 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 574 proven. 2 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-07-20 06:01:10,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 06:01:10,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-07-20 06:01:10,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695461022] [2020-07-20 06:01:10,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-20 06:01:10,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:10,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-20 06:01:10,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-20 06:01:10,403 INFO L87 Difference]: Start difference. First operand 3000 states and 3326 transitions. Second operand 14 states. [2020-07-20 06:01:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:18,569 INFO L93 Difference]: Finished difference Result 7187 states and 8077 transitions. [2020-07-20 06:01:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-20 06:01:18,571 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 548 [2020-07-20 06:01:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:18,589 INFO L225 Difference]: With dead ends: 7187 [2020-07-20 06:01:18,589 INFO L226 Difference]: Without dead ends: 3976 [2020-07-20 06:01:18,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 580 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=422, Invalid=1648, Unknown=0, NotChecked=0, Total=2070 [2020-07-20 06:01:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2020-07-20 06:01:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3744. [2020-07-20 06:01:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3744 states. [2020-07-20 06:01:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 4064 transitions. [2020-07-20 06:01:18,697 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 4064 transitions. Word has length 548 [2020-07-20 06:01:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:18,699 INFO L479 AbstractCegarLoop]: Abstraction has 3744 states and 4064 transitions. [2020-07-20 06:01:18,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-20 06:01:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 4064 transitions. [2020-07-20 06:01:18,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2020-07-20 06:01:18,714 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:18,715 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-07-20 06:01:18,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-20 06:01:18,932 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:18,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:18,932 INFO L82 PathProgramCache]: Analyzing trace with hash 263555200, now seen corresponding path program 1 times [2020-07-20 06:01:18,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:18,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125696631] [2020-07-20 06:01:18,935 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 650 proven. 221 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-07-20 06:01:20,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125696631] [2020-07-20 06:01:20,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181782370] [2020-07-20 06:01:20,230 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b740cb0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:20,605 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b740cb0 issued 4 check-sat command(s) [2020-07-20 06:01:20,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:20,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 06:01:20,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 1504 trivial. 0 not checked. [2020-07-20 06:01:20,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 06:01:20,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-07-20 06:01:20,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052594610] [2020-07-20 06:01:20,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 06:01:20,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:20,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 06:01:20,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-20 06:01:20,951 INFO L87 Difference]: Start difference. First operand 3744 states and 4064 transitions. Second operand 3 states. [2020-07-20 06:01:21,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:21,916 INFO L93 Difference]: Finished difference Result 5212 states and 5797 transitions. [2020-07-20 06:01:21,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 06:01:21,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 777 [2020-07-20 06:01:21,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:21,949 INFO L225 Difference]: With dead ends: 5212 [2020-07-20 06:01:21,955 INFO L226 Difference]: Without dead ends: 5210 [2020-07-20 06:01:21,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 791 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-20 06:01:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2020-07-20 06:01:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 3930. [2020-07-20 06:01:22,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3930 states. [2020-07-20 06:01:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 4293 transitions. [2020-07-20 06:01:22,064 INFO L78 Accepts]: Start accepts. Automaton has 3930 states and 4293 transitions. Word has length 777 [2020-07-20 06:01:22,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:22,066 INFO L479 AbstractCegarLoop]: Abstraction has 3930 states and 4293 transitions. [2020-07-20 06:01:22,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 06:01:22,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3930 states and 4293 transitions. [2020-07-20 06:01:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-07-20 06:01:22,078 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:22,079 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-07-20 06:01:22,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:22,293 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:22,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:22,293 INFO L82 PathProgramCache]: Analyzing trace with hash -398342493, now seen corresponding path program 1 times [2020-07-20 06:01:22,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:22,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411536457] [2020-07-20 06:01:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1828 backedges. 650 proven. 224 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2020-07-20 06:01:23,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411536457] [2020-07-20 06:01:23,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176738932] [2020-07-20 06:01:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7e66882c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:23,974 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7e66882c issued 4 check-sat command(s) [2020-07-20 06:01:23,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:23,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 06:01:23,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:24,056 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 06:01:24,057 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:24,057 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:24,083 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:01:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1828 backedges. 1321 proven. 2 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2020-07-20 06:01:24,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 06:01:24,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2020-07-20 06:01:24,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214759581] [2020-07-20 06:01:24,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 06:01:24,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:24,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 06:01:24,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-07-20 06:01:24,939 INFO L87 Difference]: Start difference. First operand 3930 states and 4293 transitions. Second operand 12 states. [2020-07-20 06:01:29,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:29,769 INFO L93 Difference]: Finished difference Result 8598 states and 9391 transitions. [2020-07-20 06:01:29,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-20 06:01:29,770 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 780 [2020-07-20 06:01:29,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:29,787 INFO L225 Difference]: With dead ends: 8598 [2020-07-20 06:01:29,787 INFO L226 Difference]: Without dead ends: 4856 [2020-07-20 06:01:29,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 803 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2020-07-20 06:01:29,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2020-07-20 06:01:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 3750. [2020-07-20 06:01:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3750 states. [2020-07-20 06:01:29,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 4101 transitions. [2020-07-20 06:01:29,901 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 4101 transitions. Word has length 780 [2020-07-20 06:01:29,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:29,902 INFO L479 AbstractCegarLoop]: Abstraction has 3750 states and 4101 transitions. [2020-07-20 06:01:29,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 06:01:29,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 4101 transitions. [2020-07-20 06:01:29,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-07-20 06:01:29,915 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:29,918 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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] [2020-07-20 06:01:30,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:30,131 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:30,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:30,132 INFO L82 PathProgramCache]: Analyzing trace with hash 882317274, now seen corresponding path program 1 times [2020-07-20 06:01:30,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:30,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556570677] [2020-07-20 06:01:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1842 backedges. 657 proven. 224 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2020-07-20 06:01:32,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556570677] [2020-07-20 06:01:32,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015654718] [2020-07-20 06:01:32,300 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7ca2ef63 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:32,699 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7ca2ef63 issued 4 check-sat command(s) [2020-07-20 06:01:32,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:32,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 06:01:32,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1842 backedges. 719 proven. 2 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2020-07-20 06:01:33,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 06:01:33,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2020-07-20 06:01:33,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914285590] [2020-07-20 06:01:33,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 06:01:33,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:33,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 06:01:33,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-20 06:01:33,224 INFO L87 Difference]: Start difference. First operand 3750 states and 4101 transitions. Second operand 13 states. [2020-07-20 06:01:34,023 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-07-20 06:01:34,188 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2020-07-20 06:01:35,695 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-07-20 06:01:35,868 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 43 [2020-07-20 06:01:38,162 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-07-20 06:01:38,339 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-07-20 06:01:40,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:40,888 INFO L93 Difference]: Finished difference Result 9166 states and 10213 transitions. [2020-07-20 06:01:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-20 06:01:40,889 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 787 [2020-07-20 06:01:40,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:40,912 INFO L225 Difference]: With dead ends: 9166 [2020-07-20 06:01:40,912 INFO L226 Difference]: Without dead ends: 5606 [2020-07-20 06:01:40,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406 [2020-07-20 06:01:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2020-07-20 06:01:41,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 5232. [2020-07-20 06:01:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5232 states. [2020-07-20 06:01:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 5723 transitions. [2020-07-20 06:01:41,048 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 5723 transitions. Word has length 787 [2020-07-20 06:01:41,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:41,049 INFO L479 AbstractCegarLoop]: Abstraction has 5232 states and 5723 transitions. [2020-07-20 06:01:41,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 06:01:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 5723 transitions. [2020-07-20 06:01:41,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2020-07-20 06:01:41,066 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:41,067 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:01:41,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-20 06:01:41,283 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:41,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:41,285 INFO L82 PathProgramCache]: Analyzing trace with hash -961571631, now seen corresponding path program 1 times [2020-07-20 06:01:41,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:41,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079138187] [2020-07-20 06:01:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 808 proven. 85 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2020-07-20 06:01:42,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079138187] [2020-07-20 06:01:42,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805661246] [2020-07-20 06:01:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@638044df No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:42,868 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@638044df issued 4 check-sat command(s) [2020-07-20 06:01:42,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:42,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 06:01:42,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 1176 proven. 2 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2020-07-20 06:01:43,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 06:01:43,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-07-20 06:01:43,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838393136] [2020-07-20 06:01:43,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 06:01:43,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:43,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 06:01:43,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 06:01:43,414 INFO L87 Difference]: Start difference. First operand 5232 states and 5723 transitions. Second operand 8 states. [2020-07-20 06:01:45,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:45,542 INFO L93 Difference]: Finished difference Result 12118 states and 13411 transitions. [2020-07-20 06:01:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 06:01:45,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 816 [2020-07-20 06:01:45,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:45,580 INFO L225 Difference]: With dead ends: 12118 [2020-07-20 06:01:45,581 INFO L226 Difference]: Without dead ends: 7076 [2020-07-20 06:01:45,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 835 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-20 06:01:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7076 states. [2020-07-20 06:01:45,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7076 to 6338. [2020-07-20 06:01:45,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6338 states. [2020-07-20 06:01:45,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6338 states to 6338 states and 7007 transitions. [2020-07-20 06:01:45,756 INFO L78 Accepts]: Start accepts. Automaton has 6338 states and 7007 transitions. Word has length 816 [2020-07-20 06:01:45,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:45,758 INFO L479 AbstractCegarLoop]: Abstraction has 6338 states and 7007 transitions. [2020-07-20 06:01:45,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 06:01:45,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6338 states and 7007 transitions. [2020-07-20 06:01:45,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-07-20 06:01:45,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:45,775 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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] [2020-07-20 06:01:45,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-20 06:01:45,984 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:45,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:45,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1789439753, now seen corresponding path program 1 times [2020-07-20 06:01:45,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:45,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552006104] [2020-07-20 06:01:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2392 backedges. 351 proven. 28 refuted. 0 times theorem prover too weak. 2013 trivial. 0 not checked. [2020-07-20 06:01:46,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552006104] [2020-07-20 06:01:46,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816733599] [2020-07-20 06:01:46,868 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7b4869d0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:47,204 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7b4869d0 issued 4 check-sat command(s) [2020-07-20 06:01:47,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:47,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 06:01:47,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2392 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 2031 trivial. 0 not checked. [2020-07-20 06:01:47,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 06:01:47,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-07-20 06:01:47,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670705403] [2020-07-20 06:01:47,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 06:01:47,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:47,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 06:01:47,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 06:01:47,604 INFO L87 Difference]: Start difference. First operand 6338 states and 7007 transitions. Second operand 3 states. [2020-07-20 06:01:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:48,572 INFO L93 Difference]: Finished difference Result 7432 states and 8190 transitions. [2020-07-20 06:01:48,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 06:01:48,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 871 [2020-07-20 06:01:48,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:48,614 INFO L225 Difference]: With dead ends: 7432 [2020-07-20 06:01:48,614 INFO L226 Difference]: Without dead ends: 7430 [2020-07-20 06:01:48,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 06:01:48,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7430 states. [2020-07-20 06:01:48,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7430 to 6156. [2020-07-20 06:01:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6156 states. [2020-07-20 06:01:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6156 states to 6156 states and 6793 transitions. [2020-07-20 06:01:48,758 INFO L78 Accepts]: Start accepts. Automaton has 6156 states and 6793 transitions. Word has length 871 [2020-07-20 06:01:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:48,759 INFO L479 AbstractCegarLoop]: Abstraction has 6156 states and 6793 transitions. [2020-07-20 06:01:48,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 06:01:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 6156 states and 6793 transitions. [2020-07-20 06:01:48,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2020-07-20 06:01:48,776 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:48,777 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 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] [2020-07-20 06:01:48,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-07-20 06:01:48,992 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:48,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:48,992 INFO L82 PathProgramCache]: Analyzing trace with hash -134669819, now seen corresponding path program 1 times [2020-07-20 06:01:48,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:48,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107806823] [2020-07-20 06:01:48,993 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2482 backedges. 354 proven. 7 refuted. 0 times theorem prover too weak. 2121 trivial. 0 not checked. [2020-07-20 06:01:49,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107806823] [2020-07-20 06:01:49,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705760843] [2020-07-20 06:01:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f62ca4c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:50,223 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f62ca4c issued 4 check-sat command(s) [2020-07-20 06:01:50,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:50,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 06:01:50,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:50,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2482 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 2121 trivial. 0 not checked. [2020-07-20 06:01:50,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 06:01:50,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-07-20 06:01:50,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351744019] [2020-07-20 06:01:50,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 06:01:50,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:50,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 06:01:50,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:01:50,655 INFO L87 Difference]: Start difference. First operand 6156 states and 6793 transitions. Second operand 3 states. [2020-07-20 06:01:51,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:51,806 INFO L93 Difference]: Finished difference Result 13216 states and 14600 transitions. [2020-07-20 06:01:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 06:01:51,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 889 [2020-07-20 06:01:51,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:51,838 INFO L225 Difference]: With dead ends: 13216 [2020-07-20 06:01:51,839 INFO L226 Difference]: Without dead ends: 7250 [2020-07-20 06:01:51,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 906 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:01:51,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2020-07-20 06:01:52,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 6340. [2020-07-20 06:01:52,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6340 states. [2020-07-20 06:01:52,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6340 states to 6340 states and 6993 transitions. [2020-07-20 06:01:52,045 INFO L78 Accepts]: Start accepts. Automaton has 6340 states and 6993 transitions. Word has length 889 [2020-07-20 06:01:52,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:52,048 INFO L479 AbstractCegarLoop]: Abstraction has 6340 states and 6993 transitions. [2020-07-20 06:01:52,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 06:01:52,048 INFO L276 IsEmpty]: Start isEmpty. Operand 6340 states and 6993 transitions. [2020-07-20 06:01:52,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2020-07-20 06:01:52,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:01:52,086 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:01:52,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:52,299 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:01:52,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:01:52,300 INFO L82 PathProgramCache]: Analyzing trace with hash 898961330, now seen corresponding path program 1 times [2020-07-20 06:01:52,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:01:52,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966467931] [2020-07-20 06:01:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@22fd458f [2020-07-20 06:01:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:01:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3202 backedges. 1363 proven. 246 refuted. 0 times theorem prover too weak. 1593 trivial. 0 not checked. [2020-07-20 06:01:53,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966467931] [2020-07-20 06:01:53,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179919362] [2020-07-20 06:01:53,577 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380192e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 06:01:53,997 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380192e issued 4 check-sat command(s) [2020-07-20 06:01:53,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:01:54,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 06:01:54,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:01:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3202 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 2789 trivial. 0 not checked. [2020-07-20 06:01:54,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 06:01:54,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-07-20 06:01:54,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744472163] [2020-07-20 06:01:54,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 06:01:54,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:01:54,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 06:01:54,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-20 06:01:54,566 INFO L87 Difference]: Start difference. First operand 6340 states and 6993 transitions. Second operand 3 states. [2020-07-20 06:01:55,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:01:55,553 INFO L93 Difference]: Finished difference Result 12854 states and 14179 transitions. [2020-07-20 06:01:55,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 06:01:55,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1033 [2020-07-20 06:01:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:01:55,556 INFO L225 Difference]: With dead ends: 12854 [2020-07-20 06:01:55,556 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 06:01:55,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 1049 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-20 06:01:55,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 06:01:55,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 06:01:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 06:01:55,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 06:01:55,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1033 [2020-07-20 06:01:55,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:01:55,579 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 06:01:55,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 06:01:55,579 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 06:01:55,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 06:01:55,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-07-20 06:01:55,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 06:01:57,318 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 270 [2020-07-20 06:01:57,815 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 270 [2020-07-20 06:01:57,973 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 30 [2020-07-20 06:02:00,705 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 387 DAG size of output: 53 [2020-07-20 06:02:02,405 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 283 DAG size of output: 51 [2020-07-20 06:02:04,042 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 283 DAG size of output: 51 [2020-07-20 06:02:04,046 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 06:02:04,046 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~a24~0 |old(~a24~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-20 06:02:04,047 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 06:02:04,047 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-20 06:02:04,047 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-20 06:02:04,047 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,047 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,047 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,048 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-20 06:02:04,049 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,051 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,051 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,051 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-20 06:02:04,051 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 06:02:04,051 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 06:02:04,052 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 06:02:04,052 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-20 06:02:04,052 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-20 06:02:04,052 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-20 06:02:04,052 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-20 06:02:04,052 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-20 06:02:04,052 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,052 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,053 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,054 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,054 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-20 06:02:04,054 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 06:02:04,054 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 06:02:04,054 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 06:02:04,054 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-20 06:02:04,054 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-20 06:02:04,054 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 06:02:04,055 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 06:02:04,056 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 06:02:04,057 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-20 06:02:04,057 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-20 06:02:04,057 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-20 06:02:04,057 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-20 06:02:04,057 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-20 06:02:04,057 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,057 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,057 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,058 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-20 06:02:04,058 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-20 06:02:04,058 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 06:02:04,058 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 06:02:04,058 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 06:02:04,058 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-20 06:02:04,058 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse5 (= ~a12~0 |old(~a12~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse7 (= ~a15~0 |old(~a15~0)|)) (.cse4 (= 1 |old(~a24~0)|))) (let ((.cse1 (= 5 |old(~a15~0)|)) (.cse0 (not .cse4)) (.cse2 (and .cse5 (= 1 ~a24~0) .cse6 .cse7)) (.cse3 (not (<= |old(~a15~0)| 5)))) (and (or .cse0 .cse1 (not (<= |old(~a12~0)| 76)) .cse2) (or (and (or .cse0 (not (<= 7 |old(~a15~0)|))) (or .cse0 .cse1 (not (<= |old(~a21~0)| 9)))) .cse2) (or .cse0 .cse3 .cse2 (and (= 7 |old(~a21~0)|) (not (< 0 (+ |old(~a12~0)| 43))))) (or .cse4 (and .cse5 (= ~a24~0 |old(~a24~0)|) .cse6 .cse7) (not (<= (+ |old(~a12~0)| 49) 0)) .cse3 (not (<= |old(~a21~0)| 7)))))) [2020-07-20 06:02:04,058 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-20 06:02:04,059 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-20 06:02:04,060 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-20 06:02:04,060 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-20 06:02:04,060 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-20 06:02:04,060 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,060 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,060 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,060 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-20 06:02:04,060 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-20 06:02:04,061 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 06:02:04,061 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 06:02:04,061 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 06:02:04,061 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-20 06:02:04,061 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-20 06:02:04,061 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-20 06:02:04,061 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,061 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,062 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,062 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-20 06:02:04,062 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 06:02:04,062 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 06:02:04,062 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 06:02:04,062 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-20 06:02:04,062 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-20 06:02:04,062 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-20 06:02:04,063 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-20 06:02:04,064 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-20 06:02:04,065 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-20 06:02:04,065 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-20 06:02:04,065 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-20 06:02:04,065 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,066 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,067 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,068 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,069 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-20 06:02:04,070 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-20 06:02:04,070 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-20 06:02:04,070 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 06:02:04,070 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 06:02:04,070 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 06:02:04,070 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-20 06:02:04,070 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-20 06:02:04,070 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-20 06:02:04,071 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-20 06:02:04,072 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,073 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,073 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,073 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-20 06:02:04,073 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 06:02:04,073 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 06:02:04,074 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 06:02:04,074 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-20 06:02:04,074 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-20 06:02:04,074 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-20 06:02:04,074 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-20 06:02:04,074 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,074 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-20 06:02:04,075 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-20 06:02:04,076 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-20 06:02:04,077 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 06:02:04,078 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (<= ~a15~0 8) (= 1 ~a24~0) (<= 7 ~a21~0) (<= ~a21~0 7) (<= 8 ~a15~0)) [2020-07-20 06:02:04,079 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 06:02:04,079 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 06:02:04,079 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (and (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0) (= 1 ~a24~0) (= ~a15~0 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|))) [2020-07-20 06:02:04,080 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-20 06:02:04,080 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (<= ~a15~0 5)) (.cse2 (not (= 5 ~a15~0))) (.cse0 (= 1 ~a24~0))) (or (and (<= 7 ~a15~0) .cse0) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse1 .cse0 (or (not (= 7 ~a21~0)) (< 0 (+ ~a12~0 43)))) (and (<= ~a12~0 76) .cse2 .cse0) (not (<= |old(~a15~0)| 8)) (and (<= (+ ~a12~0 49) 0) .cse1 (not .cse0) (<= ~a21~0 7)) (and .cse2 .cse0 (<= ~a21~0 9)) (not (<= 8 |old(~a15~0)|)))) [2020-07-20 06:02:04,080 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-20 06:02:04,080 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-20 06:02:04,081 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (<= ~a15~0 5)) (.cse2 (not (= 5 ~a15~0))) (.cse0 (= 1 ~a24~0))) (or (and (<= 7 ~a15~0) .cse0) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse1 .cse0 (or (not (= 7 ~a21~0)) (< 0 (+ ~a12~0 43)))) (and (<= ~a12~0 76) .cse2 .cse0) (not (<= |old(~a15~0)| 8)) (and (<= (+ ~a12~0 49) 0) .cse1 (not .cse0) (<= ~a21~0 7)) (and .cse2 .cse0 (<= ~a21~0 9)) (not (<= 8 |old(~a15~0)|)))) [2020-07-20 06:02:04,081 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-20 06:02:04,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:02:04 BoogieIcfgContainer [2020-07-20 06:02:04,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 06:02:04,133 INFO L168 Benchmark]: Toolchain (without parser) took 99010.97 ms. Allocated memory was 144.7 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 98.9 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2020-07-20 06:02:04,134 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 06:02:04,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1019.09 ms. Allocated memory was 144.7 MB in the beginning and 206.6 MB in the end (delta: 61.9 MB). Free memory was 98.7 MB in the beginning and 169.5 MB in the end (delta: -70.8 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2020-07-20 06:02:04,137 INFO L168 Benchmark]: Boogie Preprocessor took 164.78 ms. Allocated memory is still 206.6 MB. Free memory was 169.5 MB in the beginning and 163.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-07-20 06:02:04,138 INFO L168 Benchmark]: RCFGBuilder took 1838.71 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 163.8 MB in the beginning and 158.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-07-20 06:02:04,139 INFO L168 Benchmark]: TraceAbstraction took 95979.98 ms. Allocated memory was 238.6 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 158.6 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2020-07-20 06:02:04,148 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1019.09 ms. Allocated memory was 144.7 MB in the beginning and 206.6 MB in the end (delta: 61.9 MB). Free memory was 98.7 MB in the beginning and 169.5 MB in the end (delta: -70.8 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 164.78 ms. Allocated memory is still 206.6 MB. Free memory was 169.5 MB in the beginning and 163.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1838.71 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 163.8 MB in the beginning and 158.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 95979.98 ms. Allocated memory was 238.6 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 158.6 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((7 <= a15 && 1 == a24) || !(7 == \old(a21))) || !(1 == \old(a24))) || !(\old(a12) + 49 <= 0)) || ((a15 <= 5 && 1 == a24) && (!(7 == a21) || 0 < a12 + 43))) || ((a12 <= 76 && !(5 == a15)) && 1 == a24)) || !(\old(a15) <= 8)) || (((a12 + 49 <= 0 && a15 <= 5) && !(1 == a24)) && a21 <= 7)) || ((!(5 == a15) && 1 == a24) && a21 <= 9)) || !(8 <= \old(a15)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 87.5s, OverallIterations: 17, TraceHistogramMax: 9, AutomataDifference: 56.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 822 SDtfs, 15198 SDslu, 833 SDs, 0 SdLazy, 24877 SolverSat, 3528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8840 GetRequests, 8535 SyntacticMatches, 2 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2323 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6340occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 7752 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 258 PreInvPairs, 340 NumberOfFragments, 384 HoareAnnotationTreeSize, 258 FomulaSimplifications, 149926 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 53488 FormulaSimplificationTreeSizeReductionInter, 6.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 16793 NumberOfCodeBlocks, 16793 NumberOfCodeBlocksAsserted, 77 NumberOfCheckSat, 16761 ConstructedInterpolants, 0 QuantifiedInterpolants, 23340243 SizeOfPredicates, 16 NumberOfNonLiveVariables, 12370 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 32 InterpolantComputations, 10 PerfectInterpolantSequences, 35245/36685 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...