/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 21:54:08,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 21:54:08,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 21:54:08,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 21:54:08,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 21:54:08,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 21:54:08,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 21:54:08,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 21:54:08,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 21:54:08,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 21:54:08,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 21:54:08,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 21:54:08,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 21:54:08,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 21:54:08,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 21:54:08,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 21:54:08,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 21:54:08,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 21:54:08,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 21:54:08,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 21:54:08,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 21:54:08,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 21:54:08,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 21:54:08,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 21:54:08,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 21:54:08,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 21:54:08,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 21:54:08,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 21:54:08,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 21:54:08,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 21:54:08,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 21:54:08,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 21:54:08,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 21:54:08,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 21:54:08,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 21:54:08,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 21:54:08,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 21:54:08,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 21:54:08,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 21:54:08,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 21:54:08,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 21:54:08,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-27 21:54:08,636 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 21:54:08,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 21:54:08,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 21:54:08,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 21:54:08,638 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 21:54:08,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 21:54:08,639 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 21:54:08,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 21:54:08,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 21:54:08,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 21:54:08,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 21:54:08,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 21:54:08,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 21:54:08,640 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 21:54:08,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 21:54:08,641 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 21:54:08,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 21:54:08,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 21:54:08,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 21:54:08,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 21:54:08,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 21:54:08,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 21:54:08,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 21:54:08,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 21:54:08,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 21:54:08,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 21:54:08,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 21:54:08,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 21:54:08,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 21:54:08,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-27 21:54:09,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 21:54:09,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 21:54:09,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 21:54:09,119 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 21:54:09,120 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 21:54:09,121 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-08-27 21:54:09,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e48076e2/95a545f5565b4bc0844bfed733c2bd56/FLAG800457ccb [2020-08-27 21:54:09,882 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 21:54:09,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-08-27 21:54:09,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e48076e2/95a545f5565b4bc0844bfed733c2bd56/FLAG800457ccb [2020-08-27 21:54:10,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e48076e2/95a545f5565b4bc0844bfed733c2bd56 [2020-08-27 21:54:10,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 21:54:10,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 21:54:10,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 21:54:10,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 21:54:10,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 21:54:10,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:10,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112bbb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10, skipping insertion in model container [2020-08-27 21:54:10,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:10,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 21:54:10,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 21:54:10,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:54:10,662 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 21:54:10,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:54:10,889 INFO L208 MainTranslator]: Completed translation [2020-08-27 21:54:10,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10 WrapperNode [2020-08-27 21:54:10,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 21:54:10,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 21:54:10,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 21:54:10,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 21:54:10,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:10,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:10,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:10,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:10,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:11,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:11,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (1/1) ... [2020-08-27 21:54:11,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 21:54:11,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 21:54:11,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 21:54:11,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 21:54:11,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-27 21:54:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 21:54:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 21:54:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-27 21:54:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 21:54:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-27 21:54:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 21:54:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 21:54:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-27 21:54:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 21:54:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 21:54:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 21:54:12,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 21:54:12,304 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-27 21:54:12,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:54:12 BoogieIcfgContainer [2020-08-27 21:54:12,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 21:54:12,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 21:54:12,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 21:54:12,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 21:54:12,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 09:54:10" (1/3) ... [2020-08-27 21:54:12,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf92bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:54:12, skipping insertion in model container [2020-08-27 21:54:12,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:54:10" (2/3) ... [2020-08-27 21:54:12,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf92bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:54:12, skipping insertion in model container [2020-08-27 21:54:12,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:54:12" (3/3) ... [2020-08-27 21:54:12,327 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-08-27 21:54:12,339 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 21:54:12,350 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 21:54:12,376 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 21:54:12,410 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 21:54:12,411 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 21:54:12,411 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 21:54:12,411 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 21:54:12,411 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 21:54:12,412 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 21:54:12,412 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 21:54:12,412 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 21:54:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-27 21:54:12,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-08-27 21:54:12,454 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:12,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:54:12,456 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:12,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:12,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1304641474, now seen corresponding path program 1 times [2020-08-27 21:54:12,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:12,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695389939] [2020-08-27 21:54:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:13,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:54:13,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695389939] [2020-08-27 21:54:13,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:54:13,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-27 21:54:13,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219805936] [2020-08-27 21:54:13,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-27 21:54:13,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:13,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-27 21:54:13,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-27 21:54:13,140 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2020-08-27 21:54:14,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:14,824 INFO L93 Difference]: Finished difference Result 631 states and 1079 transitions. [2020-08-27 21:54:14,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:54:14,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2020-08-27 21:54:14,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:14,846 INFO L225 Difference]: With dead ends: 631 [2020-08-27 21:54:14,846 INFO L226 Difference]: Without dead ends: 331 [2020-08-27 21:54:14,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-27 21:54:14,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-08-27 21:54:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 323. [2020-08-27 21:54:14,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-08-27 21:54:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 475 transitions. [2020-08-27 21:54:14,948 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 475 transitions. Word has length 106 [2020-08-27 21:54:14,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:14,950 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 475 transitions. [2020-08-27 21:54:14,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-27 21:54:14,950 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 475 transitions. [2020-08-27 21:54:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-08-27 21:54:14,956 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:14,957 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:54:14,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 21:54:14,957 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:14,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:14,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1597305603, now seen corresponding path program 1 times [2020-08-27 21:54:14,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:14,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068118968] [2020-08-27 21:54:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:15,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:15,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:15,209 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:54:15,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068118968] [2020-08-27 21:54:15,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:54:15,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-27 21:54:15,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366093379] [2020-08-27 21:54:15,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:54:15,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:15,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:54:15,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:54:15,214 INFO L87 Difference]: Start difference. First operand 323 states and 475 transitions. Second operand 8 states. [2020-08-27 21:54:17,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:17,634 INFO L93 Difference]: Finished difference Result 1276 states and 1952 transitions. [2020-08-27 21:54:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 21:54:17,635 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2020-08-27 21:54:17,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:17,643 INFO L225 Difference]: With dead ends: 1276 [2020-08-27 21:54:17,643 INFO L226 Difference]: Without dead ends: 959 [2020-08-27 21:54:17,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-27 21:54:17,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-27 21:54:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 925. [2020-08-27 21:54:17,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-08-27 21:54:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1338 transitions. [2020-08-27 21:54:17,742 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1338 transitions. Word has length 126 [2020-08-27 21:54:17,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:17,743 INFO L479 AbstractCegarLoop]: Abstraction has 925 states and 1338 transitions. [2020-08-27 21:54:17,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:54:17,746 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1338 transitions. [2020-08-27 21:54:17,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-27 21:54:17,758 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:17,759 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:54:17,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 21:54:17,762 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:17,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:17,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1903522921, now seen corresponding path program 1 times [2020-08-27 21:54:17,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:17,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879559909] [2020-08-27 21:54:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:17,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:17,973 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:54:17,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879559909] [2020-08-27 21:54:17,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:54:17,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-27 21:54:17,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401379101] [2020-08-27 21:54:17,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:54:17,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:17,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:54:17,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:54:17,976 INFO L87 Difference]: Start difference. First operand 925 states and 1338 transitions. Second operand 8 states. [2020-08-27 21:54:20,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:20,569 INFO L93 Difference]: Finished difference Result 2931 states and 4471 transitions. [2020-08-27 21:54:20,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 21:54:20,572 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 127 [2020-08-27 21:54:20,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:20,595 INFO L225 Difference]: With dead ends: 2931 [2020-08-27 21:54:20,596 INFO L226 Difference]: Without dead ends: 2012 [2020-08-27 21:54:20,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-08-27 21:54:20,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2020-08-27 21:54:20,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 1835. [2020-08-27 21:54:20,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1835 states. [2020-08-27 21:54:20,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2547 transitions. [2020-08-27 21:54:20,703 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2547 transitions. Word has length 127 [2020-08-27 21:54:20,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:20,706 INFO L479 AbstractCegarLoop]: Abstraction has 1835 states and 2547 transitions. [2020-08-27 21:54:20,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:54:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2547 transitions. [2020-08-27 21:54:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-27 21:54:20,713 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:20,714 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:54:20,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 21:54:20,714 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:20,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:20,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1785081447, now seen corresponding path program 1 times [2020-08-27 21:54:20,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:20,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175180356] [2020-08-27 21:54:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:20,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:20,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:54:20,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175180356] [2020-08-27 21:54:20,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:54:20,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-27 21:54:20,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876932830] [2020-08-27 21:54:20,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-27 21:54:20,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:20,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-27 21:54:20,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-27 21:54:20,989 INFO L87 Difference]: Start difference. First operand 1835 states and 2547 transitions. Second operand 5 states. [2020-08-27 21:54:22,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:22,358 INFO L93 Difference]: Finished difference Result 4839 states and 6891 transitions. [2020-08-27 21:54:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:54:22,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-08-27 21:54:22,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:22,382 INFO L225 Difference]: With dead ends: 4839 [2020-08-27 21:54:22,383 INFO L226 Difference]: Without dead ends: 3010 [2020-08-27 21:54:22,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-27 21:54:22,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2020-08-27 21:54:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2712. [2020-08-27 21:54:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2712 states. [2020-08-27 21:54:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 3607 transitions. [2020-08-27 21:54:22,516 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 3607 transitions. Word has length 127 [2020-08-27 21:54:22,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:22,518 INFO L479 AbstractCegarLoop]: Abstraction has 2712 states and 3607 transitions. [2020-08-27 21:54:22,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-27 21:54:22,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 3607 transitions. [2020-08-27 21:54:22,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-08-27 21:54:22,530 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:22,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:54:22,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 21:54:22,531 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:22,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:22,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1811687312, now seen corresponding path program 1 times [2020-08-27 21:54:22,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:22,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544833798] [2020-08-27 21:54:22,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:22,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:22,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:54:22,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544833798] [2020-08-27 21:54:22,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:54:22,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-27 21:54:22,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769105761] [2020-08-27 21:54:22,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:54:22,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:22,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:54:22,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:54:22,774 INFO L87 Difference]: Start difference. First operand 2712 states and 3607 transitions. Second operand 8 states. [2020-08-27 21:54:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:23,710 INFO L93 Difference]: Finished difference Result 5314 states and 7430 transitions. [2020-08-27 21:54:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-27 21:54:23,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 143 [2020-08-27 21:54:23,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:23,728 INFO L225 Difference]: With dead ends: 5314 [2020-08-27 21:54:23,728 INFO L226 Difference]: Without dead ends: 2608 [2020-08-27 21:54:23,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-27 21:54:23,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2020-08-27 21:54:23,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2548. [2020-08-27 21:54:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-08-27 21:54:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3270 transitions. [2020-08-27 21:54:23,830 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3270 transitions. Word has length 143 [2020-08-27 21:54:23,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:23,830 INFO L479 AbstractCegarLoop]: Abstraction has 2548 states and 3270 transitions. [2020-08-27 21:54:23,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:54:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3270 transitions. [2020-08-27 21:54:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-27 21:54:23,838 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:23,838 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:54:23,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 21:54:23,839 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:23,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:23,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1308251263, now seen corresponding path program 1 times [2020-08-27 21:54:23,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:23,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100071047] [2020-08-27 21:54:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:23,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:23,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:23,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-27 21:54:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:24,027 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-27 21:54:24,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100071047] [2020-08-27 21:54:24,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:54:24,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-27 21:54:24,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819398472] [2020-08-27 21:54:24,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-27 21:54:24,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:24,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-27 21:54:24,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-27 21:54:24,036 INFO L87 Difference]: Start difference. First operand 2548 states and 3270 transitions. Second operand 7 states. [2020-08-27 21:54:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:25,309 INFO L93 Difference]: Finished difference Result 4996 states and 6655 transitions. [2020-08-27 21:54:25,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-27 21:54:25,317 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-08-27 21:54:25,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:25,332 INFO L225 Difference]: With dead ends: 4996 [2020-08-27 21:54:25,332 INFO L226 Difference]: Without dead ends: 2598 [2020-08-27 21:54:25,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-27 21:54:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2020-08-27 21:54:25,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2274. [2020-08-27 21:54:25,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2274 states. [2020-08-27 21:54:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 2709 transitions. [2020-08-27 21:54:25,415 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 2709 transitions. Word has length 157 [2020-08-27 21:54:25,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:25,416 INFO L479 AbstractCegarLoop]: Abstraction has 2274 states and 2709 transitions. [2020-08-27 21:54:25,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-27 21:54:25,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 2709 transitions. [2020-08-27 21:54:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-08-27 21:54:25,422 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:25,422 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-27 21:54:25,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-27 21:54:25,423 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:25,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:25,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1350202343, now seen corresponding path program 1 times [2020-08-27 21:54:25,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:25,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699220810] [2020-08-27 21:54:25,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:25,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:25,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:25,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-27 21:54:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 50 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-27 21:54:25,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699220810] [2020-08-27 21:54:25,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:54:25,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-27 21:54:25,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033763929] [2020-08-27 21:54:25,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-27 21:54:25,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:25,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-27 21:54:25,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-27 21:54:25,701 INFO L87 Difference]: Start difference. First operand 2274 states and 2709 transitions. Second operand 9 states. [2020-08-27 21:54:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:28,213 INFO L93 Difference]: Finished difference Result 5141 states and 6184 transitions. [2020-08-27 21:54:28,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-27 21:54:28,214 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-08-27 21:54:28,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:28,229 INFO L225 Difference]: With dead ends: 5141 [2020-08-27 21:54:28,230 INFO L226 Difference]: Without dead ends: 3017 [2020-08-27 21:54:28,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-27 21:54:28,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-08-27 21:54:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2860. [2020-08-27 21:54:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2020-08-27 21:54:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3306 transitions. [2020-08-27 21:54:28,341 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3306 transitions. Word has length 161 [2020-08-27 21:54:28,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:28,342 INFO L479 AbstractCegarLoop]: Abstraction has 2860 states and 3306 transitions. [2020-08-27 21:54:28,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-27 21:54:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3306 transitions. [2020-08-27 21:54:28,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-27 21:54:28,349 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:28,350 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:54:28,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-27 21:54:28,350 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:28,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:28,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1848612136, now seen corresponding path program 1 times [2020-08-27 21:54:28,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:28,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444316678] [2020-08-27 21:54:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:28,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:28,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:28,606 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:54:28,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444316678] [2020-08-27 21:54:28,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:54:28,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-27 21:54:28,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062382151] [2020-08-27 21:54:28,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-27 21:54:28,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:28,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-27 21:54:28,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-27 21:54:28,610 INFO L87 Difference]: Start difference. First operand 2860 states and 3306 transitions. Second operand 5 states. [2020-08-27 21:54:29,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:29,813 INFO L93 Difference]: Finished difference Result 4985 states and 5773 transitions. [2020-08-27 21:54:29,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:54:29,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-08-27 21:54:29,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:29,815 INFO L225 Difference]: With dead ends: 4985 [2020-08-27 21:54:29,815 INFO L226 Difference]: Without dead ends: 0 [2020-08-27 21:54:29,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-27 21:54:29,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-27 21:54:29,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-27 21:54:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-27 21:54:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-27 21:54:29,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 163 [2020-08-27 21:54:29,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:29,826 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-27 21:54:29,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-27 21:54:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-27 21:54:29,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-27 21:54:29,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-27 21:54:29,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-27 21:54:30,750 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 103 [2020-08-27 21:54:31,012 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 103 [2020-08-27 21:54:31,207 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 30 [2020-08-27 21:54:32,016 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 42 [2020-08-27 21:54:32,339 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 38 [2020-08-27 21:54:32,608 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 38 [2020-08-27 21:54:32,613 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-27 21:54:32,614 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-08-27 21:54:32,614 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-27 21:54:32,614 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,615 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,615 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,615 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,616 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,616 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-27 21:54:32,616 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-27 21:54:32,616 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-27 21:54:32,616 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-27 21:54:32,616 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-27 21:54:32,617 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-27 21:54:32,617 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-27 21:54:32,617 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-27 21:54:32,617 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-27 21:54:32,617 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-27 21:54:32,617 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-27 21:54:32,618 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-27 21:54:32,618 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-27 21:54:32,618 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,618 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,618 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,618 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,618 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-27 21:54:32,619 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,619 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-27 21:54:32,619 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-27 21:54:32,619 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-27 21:54:32,619 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-27 21:54:32,619 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-27 21:54:32,619 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-27 21:54:32,620 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-27 21:54:32,620 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-27 21:54:32,620 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-27 21:54:32,620 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-27 21:54:32,620 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-27 21:54:32,620 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-27 21:54:32,621 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-27 21:54:32,621 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-27 21:54:32,621 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-27 21:54:32,621 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,621 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,621 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,621 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,622 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,622 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2020-08-27 21:54:32,622 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-27 21:54:32,622 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-27 21:54:32,622 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-27 21:54:32,623 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-27 21:54:32,623 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-27 21:54:32,623 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-27 21:54:32,623 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-27 21:54:32,623 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-27 21:54:32,623 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-27 21:54:32,624 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-27 21:54:32,624 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-27 21:54:32,624 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,624 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,624 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,624 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,624 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,625 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-27 21:54:32,625 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-27 21:54:32,625 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-27 21:54:32,625 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-27 21:54:32,625 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-27 21:54:32,625 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-27 21:54:32,626 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-27 21:54:32,626 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-27 21:54:32,626 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-27 21:54:32,626 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-27 21:54:32,626 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-27 21:54:32,626 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-27 21:54:32,627 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-27 21:54:32,627 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,627 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,627 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,627 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,628 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,628 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-27 21:54:32,628 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-27 21:54:32,628 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-27 21:54:32,628 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-27 21:54:32,628 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-27 21:54:32,629 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-27 21:54:32,629 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-27 21:54:32,629 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-27 21:54:32,629 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-27 21:54:32,629 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-27 21:54:32,629 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-27 21:54:32,630 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-27 21:54:32,630 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-27 21:54:32,630 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-27 21:54:32,630 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-27 21:54:32,630 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-27 21:54:32,630 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,631 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,631 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,631 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,631 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-27 21:54:32,631 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,631 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-27 21:54:32,632 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,632 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-27 21:54:32,632 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-27 21:54:32,632 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-27 21:54:32,632 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,632 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,632 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-27 21:54:32,633 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-27 21:54:32,633 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-27 21:54:32,633 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-27 21:54:32,633 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-27 21:54:32,633 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-27 21:54:32,633 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-27 21:54:32,633 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-27 21:54:32,634 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,635 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,636 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,636 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,636 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,636 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-27 21:54:32,636 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-27 21:54:32,636 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-27 21:54:32,636 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-27 21:54:32,637 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-27 21:54:32,637 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-27 21:54:32,637 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-27 21:54:32,637 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-27 21:54:32,637 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-27 21:54:32,637 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-27 21:54:32,638 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-27 21:54:32,638 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-27 21:54:32,638 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-27 21:54:32,638 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-27 21:54:32,638 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,638 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,638 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,639 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (= ~a28~0 |old(~a28~0)|)) (.cse8 (= ~a17~0 |old(~a17~0)|)) (.cse9 (= ~a11~0 |old(~a11~0)|)) (.cse10 (= ~a19~0 |old(~a19~0)|))) (let ((.cse5 (and .cse7 .cse8 .cse9 (= ~a25~0 |old(~a25~0)|) .cse10)) (.cse6 (not (<= |old(~a25~0)| 0))) (.cse3 (= |old(~a17~0)| |old(~a28~0)|)) (.cse0 (not (= |old(~a25~0)| 1))) (.cse1 (not (<= |old(~a17~0)| 8))) (.cse2 (and .cse7 .cse8 .cse9 (= ~a25~0 1) .cse10)) (.cse4 (= |old(~a19~0)| 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 (not (<= |old(~a28~0)| 7)) .cse5) (or .cse4 .cse1 .cse5 .cse6) (or (= 8 |old(~a28~0)|) .cse1 .cse5 .cse6 .cse3) (or .cse0 .cse1 .cse2 (not .cse4))))) [2020-08-27 21:54:32,649 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,649 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,649 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,649 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-27 21:54:32,650 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-27 21:54:32,650 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-27 21:54:32,650 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-27 21:54:32,650 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-27 21:54:32,650 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-27 21:54:32,650 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-27 21:54:32,650 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-27 21:54:32,650 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-27 21:54:32,651 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-27 21:54:32,651 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-27 21:54:32,651 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-27 21:54:32,651 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-27 21:54:32,651 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,651 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,651 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,651 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,652 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,652 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,652 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-27 21:54:32,652 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-27 21:54:32,652 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-27 21:54:32,652 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-27 21:54:32,652 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-27 21:54:32,653 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-27 21:54:32,653 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-27 21:54:32,653 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-27 21:54:32,653 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-27 21:54:32,653 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-27 21:54:32,653 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-27 21:54:32,653 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-27 21:54:32,653 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-27 21:54:32,654 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-27 21:54:32,654 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-27 21:54:32,654 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-27 21:54:32,654 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,654 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,654 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,654 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,654 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:32,655 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-27 21:54:32,655 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-27 21:54:32,655 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-27 21:54:32,656 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-27 21:54:32,656 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-27 21:54:32,656 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-27 21:54:32,656 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-27 21:54:32,656 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-27 21:54:32,656 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-27 21:54:32,656 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-27 21:54:32,657 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-27 21:54:32,657 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-27 21:54:32,657 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-27 21:54:32,657 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-27 21:54:32,657 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-27 21:54:32,657 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-27 21:54:32,657 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-27 21:54:32,657 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-27 21:54:32,658 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-27 21:54:32,658 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-27 21:54:32,658 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a28~0 ~a17~0)) (= ~a19~0 1) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0)) [2020-08-27 21:54:32,658 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-27 21:54:32,658 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-27 21:54:32,658 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (= |old(~a17~0)| |old(~a28~0)|)) [2020-08-27 21:54:32,659 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (= ~a19~0 1))) (let ((.cse3 (not (= ~a28~0 ~a17~0))) (.cse2 (<= ~a25~0 0)) (.cse4 (= ~a25~0 1)) (.cse0 (not .cse5)) (.cse1 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse1) (and .cse3 (not (= ~a28~0 8)) .cse1 .cse2) (not (<= |old(~a25~0)| 0)) (and .cse5 .cse4 .cse1) (and .cse0 (<= ~a28~0 7) .cse1) (= |old(~a17~0)| |old(~a28~0)|)))) [2020-08-27 21:54:32,659 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-27 21:54:32,659 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-27 21:54:32,659 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (= ~a19~0 1))) (let ((.cse3 (not (= ~a28~0 ~a17~0))) (.cse2 (<= ~a25~0 0)) (.cse4 (= ~a25~0 1)) (.cse0 (not .cse5)) (.cse1 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse1) (and .cse3 (not (= ~a28~0 8)) .cse1 .cse2) (not (<= |old(~a25~0)| 0)) (and .cse5 .cse4 .cse1) (and .cse0 (<= ~a28~0 7) .cse1) (= |old(~a17~0)| |old(~a28~0)|)))) [2020-08-27 21:54:32,659 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-27 21:54:32,660 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-27 21:54:32,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 09:54:32 BoogieIcfgContainer [2020-08-27 21:54:32,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-27 21:54:32,695 INFO L168 Benchmark]: Toolchain (without parser) took 22616.11 ms. Allocated memory was 139.5 MB in the beginning and 494.9 MB in the end (delta: 355.5 MB). Free memory was 101.1 MB in the beginning and 212.3 MB in the end (delta: -111.2 MB). Peak memory consumption was 377.5 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:32,696 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-27 21:54:32,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.61 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.7 MB in the beginning and 171.3 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:32,698 INFO L168 Benchmark]: Boogie Preprocessor took 129.27 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:32,699 INFO L168 Benchmark]: RCFGBuilder took 1292.63 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 181.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:32,700 INFO L168 Benchmark]: TraceAbstraction took 20374.33 ms. Allocated memory was 237.5 MB in the beginning and 494.9 MB in the end (delta: 257.4 MB). Free memory was 181.8 MB in the beginning and 212.3 MB in the end (delta: -30.5 MB). Peak memory consumption was 360.2 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:32,704 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 809.61 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.7 MB in the beginning and 171.3 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.27 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1292.63 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 181.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20374.33 ms. Allocated memory was 237.5 MB in the beginning and 494.9 MB in the end (delta: 257.4 MB). Free memory was 181.8 MB in the beginning and 212.3 MB in the end (delta: -30.5 MB). Peak memory consumption was 360.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 472]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((!(\old(a28) <= 7) || !(\old(a17) <= 8)) || !(\old(a19) == 1)) || ((!(a19 == 1) && a17 <= 8) && a25 <= 0)) || ((!(a28 == a17) && a25 == 1) && a17 <= 8)) || (((!(a28 == a17) && !(a28 == 8)) && a17 <= 8) && a25 <= 0)) || !(\old(a25) <= 0)) || ((a19 == 1 && a25 == 1) && a17 <= 8)) || ((!(a19 == 1) && a28 <= 7) && a17 <= 8)) || \old(a17) == \old(a28) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.4s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 302 SDtfs, 4545 SDslu, 467 SDs, 0 SdLazy, 7261 SolverSat, 1295 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2860occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 1058 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 138 NumberOfFragments, 407 HoareAnnotationTreeSize, 108 FomulaSimplifications, 33820 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1990 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1110 NumberOfCodeBlocks, 1110 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1102 ConstructedInterpolants, 0 QuantifiedInterpolants, 415921 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 243/252 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...