/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_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 21:53:43,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 21:53:43,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 21:53:43,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 21:53:43,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 21:53:43,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 21:53:43,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 21:53:43,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 21:53:44,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 21:53:44,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 21:53:44,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 21:53:44,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 21:53:44,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 21:53:44,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 21:53:44,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 21:53:44,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 21:53:44,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 21:53:44,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 21:53:44,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 21:53:44,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 21:53:44,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 21:53:44,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 21:53:44,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 21:53:44,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 21:53:44,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 21:53:44,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 21:53:44,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 21:53:44,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 21:53:44,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 21:53:44,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 21:53:44,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 21:53:44,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 21:53:44,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 21:53:44,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 21:53:44,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 21:53:44,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 21:53:44,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 21:53:44,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 21:53:44,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 21:53:44,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 21:53:44,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 21:53:44,080 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 21:53:44,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 21:53:44,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 21:53:44,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 21:53:44,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 21:53:44,129 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 21:53:44,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 21:53:44,130 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 21:53:44,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 21:53:44,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 21:53:44,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 21:53:44,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 21:53:44,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 21:53:44,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 21:53:44,132 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 21:53:44,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 21:53:44,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 21:53:44,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 21:53:44,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 21:53:44,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 21:53:44,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 21:53:44,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 21:53:44,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 21:53:44,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 21:53:44,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 21:53:44,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 21:53:44,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 21:53:44,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 21:53:44,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 21:53:44,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 21:53:44,136 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 21:53:44,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 21:53:44,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 21:53:44,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 21:53:44,618 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 21:53:44,618 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 21:53:44,620 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-08-27 21:53:44,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9ea42605/bf7c7b53834d4d22876b2f09f2bdfee1/FLAG9f4008003 [2020-08-27 21:53:45,394 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 21:53:45,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-08-27 21:53:45,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9ea42605/bf7c7b53834d4d22876b2f09f2bdfee1/FLAG9f4008003 [2020-08-27 21:53:45,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9ea42605/bf7c7b53834d4d22876b2f09f2bdfee1 [2020-08-27 21:53:45,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 21:53:45,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 21:53:45,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 21:53:45,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 21:53:45,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 21:53:45,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:53:45" (1/1) ... [2020-08-27 21:53:45,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e64c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:45, skipping insertion in model container [2020-08-27 21:53:45,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:53:45" (1/1) ... [2020-08-27 21:53:45,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 21:53:45,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 21:53:46,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:53:46,115 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 21:53:46,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:53:46,416 INFO L208 MainTranslator]: Completed translation [2020-08-27 21:53:46,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46 WrapperNode [2020-08-27 21:53:46,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 21:53:46,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 21:53:46,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 21:53:46,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 21:53:46,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (1/1) ... [2020-08-27 21:53:46,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (1/1) ... [2020-08-27 21:53:46,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (1/1) ... [2020-08-27 21:53:46,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (1/1) ... [2020-08-27 21:53:46,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (1/1) ... [2020-08-27 21:53:46,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (1/1) ... [2020-08-27 21:53:46,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (1/1) ... [2020-08-27 21:53:46,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 21:53:46,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 21:53:46,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 21:53:46,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 21:53:46,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (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 21:53:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 21:53:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 21:53:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-27 21:53:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 21:53:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-27 21:53:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 21:53:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 21:53:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-27 21:53:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 21:53:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 21:53:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 21:53:47,858 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 21:53:47,858 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-27 21:53:47,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:53:47 BoogieIcfgContainer [2020-08-27 21:53:47,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 21:53:47,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 21:53:47,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 21:53:47,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 21:53:47,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 09:53:45" (1/3) ... [2020-08-27 21:53:47,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505b8b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:53:47, skipping insertion in model container [2020-08-27 21:53:47,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:53:46" (2/3) ... [2020-08-27 21:53:47,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505b8b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:53:47, skipping insertion in model container [2020-08-27 21:53:47,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:53:47" (3/3) ... [2020-08-27 21:53:47,884 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label21.c [2020-08-27 21:53:47,895 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 21:53:47,910 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 21:53:47,933 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 21:53:47,974 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 21:53:47,975 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 21:53:47,975 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 21:53:47,975 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 21:53:47,976 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 21:53:47,976 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 21:53:47,976 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 21:53:47,976 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 21:53:48,004 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-27 21:53:48,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-27 21:53:48,018 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:53:48,020 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] [2020-08-27 21:53:48,021 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:53:48,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:53:48,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1487720814, now seen corresponding path program 1 times [2020-08-27 21:53:48,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:53:48,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087928403] [2020-08-27 21:53:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:53:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:48,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:53:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:48,659 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 21:53:48,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087928403] [2020-08-27 21:53:48,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:53:48,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-27 21:53:48,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332508919] [2020-08-27 21:53:48,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-27 21:53:48,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:53:48,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-27 21:53:48,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-27 21:53:48,700 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-27 21:53:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:53:50,545 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-08-27 21:53:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:53:50,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-08-27 21:53:50,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:53:50,591 INFO L225 Difference]: With dead ends: 627 [2020-08-27 21:53:50,592 INFO L226 Difference]: Without dead ends: 327 [2020-08-27 21:53:50,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 21:53:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-08-27 21:53:50,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-08-27 21:53:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-08-27 21:53:50,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-08-27 21:53:50,692 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 102 [2020-08-27 21:53:50,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:53:50,693 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-08-27 21:53:50,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-27 21:53:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-08-27 21:53:50,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-27 21:53:50,699 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:53:50,700 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:53:50,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 21:53:50,700 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:53:50,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:53:50,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1854436435, now seen corresponding path program 1 times [2020-08-27 21:53:50,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:53:50,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480338428] [2020-08-27 21:53:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:53:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:53:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:50,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:53:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:53:51,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480338428] [2020-08-27 21:53:51,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:53:51,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-27 21:53:51,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577207707] [2020-08-27 21:53:51,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:53:51,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:53:51,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:53:51,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:53:51,007 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 8 states. [2020-08-27 21:53:52,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:53:52,047 INFO L93 Difference]: Finished difference Result 635 states and 968 transitions. [2020-08-27 21:53:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-27 21:53:52,048 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-08-27 21:53:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:53:52,056 INFO L225 Difference]: With dead ends: 635 [2020-08-27 21:53:52,056 INFO L226 Difference]: Without dead ends: 322 [2020-08-27 21:53:52,058 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 21:53:52,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-08-27 21:53:52,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 310. [2020-08-27 21:53:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-08-27 21:53:52,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions. [2020-08-27 21:53:52,110 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 117 [2020-08-27 21:53:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:53:52,110 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 437 transitions. [2020-08-27 21:53:52,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:53:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions. [2020-08-27 21:53:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-08-27 21:53:52,118 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:53:52,122 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:53:52,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 21:53:52,122 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:53:52,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:53:52,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1506178426, now seen corresponding path program 1 times [2020-08-27 21:53:52,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:53:52,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950688303] [2020-08-27 21:53:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:53:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:52,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:53:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:52,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:53:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:53:52,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950688303] [2020-08-27 21:53:52,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:53:52,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-27 21:53:52,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856665350] [2020-08-27 21:53:52,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:53:52,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:53:52,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:53:52,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:53:52,356 INFO L87 Difference]: Start difference. First operand 310 states and 437 transitions. Second operand 8 states. [2020-08-27 21:53:54,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:53:54,417 INFO L93 Difference]: Finished difference Result 1088 states and 1576 transitions. [2020-08-27 21:53:54,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 21:53:54,418 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-08-27 21:53:54,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:53:54,425 INFO L225 Difference]: With dead ends: 1088 [2020-08-27 21:53:54,426 INFO L226 Difference]: Without dead ends: 784 [2020-08-27 21:53:54,428 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 21:53:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-08-27 21:53:54,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 612. [2020-08-27 21:53:54,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-08-27 21:53:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 841 transitions. [2020-08-27 21:53:54,496 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 841 transitions. Word has length 124 [2020-08-27 21:53:54,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:53:54,496 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 841 transitions. [2020-08-27 21:53:54,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:53:54,496 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 841 transitions. [2020-08-27 21:53:54,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-27 21:53:54,501 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:53:54,501 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:53:54,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 21:53:54,502 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:53:54,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:53:54,503 INFO L82 PathProgramCache]: Analyzing trace with hash -683087106, now seen corresponding path program 1 times [2020-08-27 21:53:54,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:53:54,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190287912] [2020-08-27 21:53:54,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:53:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:54,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:53:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:54,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:53:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:53:54,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190287912] [2020-08-27 21:53:54,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:53:54,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-27 21:53:54,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204643045] [2020-08-27 21:53:54,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-27 21:53:54,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:53:54,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-27 21:53:54,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-27 21:53:54,985 INFO L87 Difference]: Start difference. First operand 612 states and 841 transitions. Second operand 6 states. [2020-08-27 21:53:56,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:53:56,209 INFO L93 Difference]: Finished difference Result 1317 states and 1854 transitions. [2020-08-27 21:53:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-27 21:53:56,210 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-08-27 21:53:56,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:53:56,219 INFO L225 Difference]: With dead ends: 1317 [2020-08-27 21:53:56,219 INFO L226 Difference]: Without dead ends: 625 [2020-08-27 21:53:56,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:53:56,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-08-27 21:53:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 612. [2020-08-27 21:53:56,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-08-27 21:53:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 825 transitions. [2020-08-27 21:53:56,253 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 825 transitions. Word has length 128 [2020-08-27 21:53:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:53:56,254 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 825 transitions. [2020-08-27 21:53:56,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-27 21:53:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 825 transitions. [2020-08-27 21:53:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-27 21:53:56,256 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:53:56,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:53:56,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 21:53:56,257 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:53:56,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:53:56,258 INFO L82 PathProgramCache]: Analyzing trace with hash 235752310, now seen corresponding path program 1 times [2020-08-27 21:53:56,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:53:56,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018695615] [2020-08-27 21:53:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:53:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:56,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:53:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:56,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:53:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:53:56,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018695615] [2020-08-27 21:53:56,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:53:56,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-27 21:53:56,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298142083] [2020-08-27 21:53:56,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:53:56,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:53:56,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:53:56,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:53:56,502 INFO L87 Difference]: Start difference. First operand 612 states and 825 transitions. Second operand 8 states. [2020-08-27 21:53:58,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:53:58,758 INFO L93 Difference]: Finished difference Result 2151 states and 3020 transitions. [2020-08-27 21:53:58,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-27 21:53:58,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-08-27 21:53:58,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:53:58,771 INFO L225 Difference]: With dead ends: 2151 [2020-08-27 21:53:58,771 INFO L226 Difference]: Without dead ends: 1545 [2020-08-27 21:53:58,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-27 21:53:58,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2020-08-27 21:53:58,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1381. [2020-08-27 21:53:58,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1381 states. [2020-08-27 21:53:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1813 transitions. [2020-08-27 21:53:58,841 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1813 transitions. Word has length 132 [2020-08-27 21:53:58,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:53:58,841 INFO L479 AbstractCegarLoop]: Abstraction has 1381 states and 1813 transitions. [2020-08-27 21:53:58,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:53:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1813 transitions. [2020-08-27 21:53:58,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-27 21:53:58,847 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:53:58,847 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:53:58,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 21:53:58,849 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:53:58,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:53:58,850 INFO L82 PathProgramCache]: Analyzing trace with hash 701787778, now seen corresponding path program 1 times [2020-08-27 21:53:58,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:53:58,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874675476] [2020-08-27 21:53:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:53:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:59,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:53:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:53:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:59,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-27 21:53:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:59,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-27 21:53:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:53:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 44 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-27 21:53:59,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874675476] [2020-08-27 21:53:59,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:53:59,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-27 21:53:59,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744442357] [2020-08-27 21:53:59,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-27 21:53:59,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:53:59,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-27 21:53:59,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-27 21:53:59,158 INFO L87 Difference]: Start difference. First operand 1381 states and 1813 transitions. Second operand 9 states. [2020-08-27 21:54:01,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:01,390 INFO L93 Difference]: Finished difference Result 3221 states and 4262 transitions. [2020-08-27 21:54:01,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-27 21:54:01,391 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 149 [2020-08-27 21:54:01,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:01,402 INFO L225 Difference]: With dead ends: 3221 [2020-08-27 21:54:01,403 INFO L226 Difference]: Without dead ends: 1846 [2020-08-27 21:54:01,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-27 21:54:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2020-08-27 21:54:01,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1689. [2020-08-27 21:54:01,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1689 states. [2020-08-27 21:54:01,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2175 transitions. [2020-08-27 21:54:01,484 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2175 transitions. Word has length 149 [2020-08-27 21:54:01,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:01,484 INFO L479 AbstractCegarLoop]: Abstraction has 1689 states and 2175 transitions. [2020-08-27 21:54:01,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-27 21:54:01,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2175 transitions. [2020-08-27 21:54:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-27 21:54:01,491 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:01,492 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:01,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-27 21:54:01,492 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:01,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:01,493 INFO L82 PathProgramCache]: Analyzing trace with hash -231059206, now seen corresponding path program 1 times [2020-08-27 21:54:01,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:01,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507926330] [2020-08-27 21:54:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:01,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:01,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:01,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-27 21:54:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:01,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-27 21:54:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-27 21:54:01,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507926330] [2020-08-27 21:54:01,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:54:01,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-27 21:54:01,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472841813] [2020-08-27 21:54:01,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:54:01,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:01,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:54:01,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:54:01,747 INFO L87 Difference]: Start difference. First operand 1689 states and 2175 transitions. Second operand 8 states. [2020-08-27 21:54:04,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:04,014 INFO L93 Difference]: Finished difference Result 3745 states and 5141 transitions. [2020-08-27 21:54:04,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 21:54:04,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-08-27 21:54:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:04,031 INFO L225 Difference]: With dead ends: 3745 [2020-08-27 21:54:04,031 INFO L226 Difference]: Without dead ends: 2062 [2020-08-27 21:54:04,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-08-27 21:54:04,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2020-08-27 21:54:04,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1999. [2020-08-27 21:54:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1999 states. [2020-08-27 21:54:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2509 transitions. [2020-08-27 21:54:04,119 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2509 transitions. Word has length 153 [2020-08-27 21:54:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:04,119 INFO L479 AbstractCegarLoop]: Abstraction has 1999 states and 2509 transitions. [2020-08-27 21:54:04,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:54:04,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2509 transitions. [2020-08-27 21:54:04,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-08-27 21:54:04,126 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:54:04,126 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:04,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-27 21:54:04,126 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:54:04,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:54:04,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1934986668, now seen corresponding path program 1 times [2020-08-27 21:54:04,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:54:04,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285776280] [2020-08-27 21:54:04,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:54:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:04,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:54:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:04,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-27 21:54:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:04,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-27 21:54:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:04,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-27 21:54:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:54:04,422 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-27 21:54:04,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285776280] [2020-08-27 21:54:04,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:54:04,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-27 21:54:04,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847869166] [2020-08-27 21:54:04,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-27 21:54:04,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:54:04,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-27 21:54:04,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-27 21:54:04,426 INFO L87 Difference]: Start difference. First operand 1999 states and 2509 transitions. Second operand 7 states. [2020-08-27 21:54:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:54:06,797 INFO L93 Difference]: Finished difference Result 6107 states and 8119 transitions. [2020-08-27 21:54:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-27 21:54:06,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-08-27 21:54:06,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:54:06,798 INFO L225 Difference]: With dead ends: 6107 [2020-08-27 21:54:06,798 INFO L226 Difference]: Without dead ends: 0 [2020-08-27 21:54:06,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-27 21:54:06,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-27 21:54:06,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-27 21:54:06,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-27 21:54:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-27 21:54:06,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-08-27 21:54:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:54:06,816 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-27 21:54:06,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-27 21:54:06,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-27 21:54:06,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-27 21:54:06,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-27 21:54:06,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-27 21:54:09,413 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 145 [2020-08-27 21:54:09,972 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 145 [2020-08-27 21:54:10,739 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 52 [2020-08-27 21:54:11,264 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 39 [2020-08-27 21:54:11,759 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 39 [2020-08-27 21:54:11,765 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-27 21:54:11,766 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 21:54:11,766 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-27 21:54:11,766 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,766 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,767 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,767 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,767 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,767 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-27 21:54:11,767 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-27 21:54:11,767 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-27 21:54:11,768 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-27 21:54:11,768 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-27 21:54:11,768 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-27 21:54:11,768 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-27 21:54:11,768 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-27 21:54:11,768 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-27 21:54:11,768 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,769 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-27 21:54:11,770 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,771 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,772 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,772 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 460) no Hoare annotation was computed. [2020-08-27 21:54:11,772 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-27 21:54:11,772 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-27 21:54:11,772 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-27 21:54:11,772 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-27 21:54:11,772 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-27 21:54:11,773 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-27 21:54:11,773 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-27 21:54:11,773 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-27 21:54:11,773 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-27 21:54:11,773 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-27 21:54:11,773 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-27 21:54:11,773 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,773 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-27 21:54:11,774 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-27 21:54:11,775 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-27 21:54:11,775 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-27 21:54:11,775 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-27 21:54:11,775 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-27 21:54:11,775 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,775 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,775 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,775 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-27 21:54:11,776 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-27 21:54:11,777 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-27 21:54:11,778 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,779 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,780 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-27 21:54:11,781 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-27 21:54:11,782 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-27 21:54:11,782 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-27 21:54:11,782 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-27 21:54:11,782 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,782 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,782 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,782 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse5 (= ~a28~0 |old(~a28~0)|)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse5 (= ~a17~0 |old(~a17~0)|) .cse3 .cse6 .cse4)) (.cse0 (not (<= |old(~a17~0)| 8))) (.cse2 (not (= ~a21~0 1)))) (and (or (= |old(~a19~0)| 1) .cse0 .cse1 .cse2) (or (and (= 7 ~a17~0) .cse3 (= 7 ~a28~0) (= ~a25~0 1) .cse4) (not (= |old(~a25~0)| 1)) (not (= 7 |old(~a17~0)|)) .cse2 (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| 1))) (or (= 8 |old(~a28~0)|) .cse0 .cse1 (not (<= |old(~a25~0)| 0)) .cse2) (or .cse0 (not (<= 8 |old(~a17~0)|)) .cse2 (and .cse5 .cse3 .cse6 (<= 8 ~a17~0) (<= ~a17~0 8) .cse4))))) [2020-08-27 21:54:11,782 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-27 21:54:11,783 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,784 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-27 21:54:11,785 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-27 21:54:11,786 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-27 21:54:11,787 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-27 21:54:11,788 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-27 21:54:11,788 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-27 21:54:11,788 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-27 21:54:11,788 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-27 21:54:11,788 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-27 21:54:11,788 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-27 21:54:11,788 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= 8 ~a17~0) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0)) [2020-08-27 21:54:11,788 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-27 21:54:11,788 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-27 21:54:11,788 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 (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (<= 8 ~a17~0) (<= ~a17~0 8) (= ~a19~0 |old(~a19~0)|))) [2020-08-27 21:54:11,788 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (<= 8 ~a17~0) .cse0) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (not (= ~a19~0 1)) .cse0) (and (not (= ~a28~0 8)) .cse0 (<= ~a25~0 0)) (and (= 7 ~a17~0) (= 7 ~a28~0) (= ~a25~0 1) (= ~a11~0 1)))) [2020-08-27 21:54:11,789 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-27 21:54:11,789 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-27 21:54:11,789 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (<= 8 ~a17~0) .cse0) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (not (= ~a19~0 1)) .cse0) (and (not (= ~a28~0 8)) .cse0 (<= ~a25~0 0)) (and (= 7 ~a17~0) (= 7 ~a28~0) (= ~a25~0 1) (= ~a11~0 1)))) [2020-08-27 21:54:11,789 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-27 21:54:11,789 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-27 21:54:11,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 09:54:11 BoogieIcfgContainer [2020-08-27 21:54:11,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-27 21:54:11,816 INFO L168 Benchmark]: Toolchain (without parser) took 26206.96 ms. Allocated memory was 141.6 MB in the beginning and 497.0 MB in the end (delta: 355.5 MB). Free memory was 102.5 MB in the beginning and 241.4 MB in the end (delta: -138.9 MB). Peak memory consumption was 365.8 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:11,817 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-27 21:54:11,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 806.93 ms. Allocated memory was 141.6 MB in the beginning and 206.6 MB in the end (delta: 65.0 MB). Free memory was 102.3 MB in the beginning and 173.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:11,819 INFO L168 Benchmark]: Boogie Preprocessor took 110.98 ms. Allocated memory is still 206.6 MB. Free memory was 173.8 MB in the beginning and 168.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:11,820 INFO L168 Benchmark]: RCFGBuilder took 1342.55 ms. Allocated memory was 206.6 MB in the beginning and 235.4 MB in the end (delta: 28.8 MB). Free memory was 168.3 MB in the beginning and 175.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:11,821 INFO L168 Benchmark]: TraceAbstraction took 23939.47 ms. Allocated memory was 235.4 MB in the beginning and 497.0 MB in the end (delta: 261.6 MB). Free memory was 175.9 MB in the beginning and 241.4 MB in the end (delta: -65.5 MB). Peak memory consumption was 345.4 MB. Max. memory is 7.1 GB. [2020-08-27 21:54:11,826 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 806.93 ms. Allocated memory was 141.6 MB in the beginning and 206.6 MB in the end (delta: 65.0 MB). Free memory was 102.3 MB in the beginning and 173.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.98 ms. Allocated memory is still 206.6 MB. Free memory was 173.8 MB in the beginning and 168.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1342.55 ms. Allocated memory was 206.6 MB in the beginning and 235.4 MB in the end (delta: 28.8 MB). Free memory was 168.3 MB in the beginning and 175.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23939.47 ms. Allocated memory was 235.4 MB in the beginning and 497.0 MB in the end (delta: 261.6 MB). Free memory was 175.9 MB in the beginning and 241.4 MB in the end (delta: -65.5 MB). Peak memory consumption was 345.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 460]: 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)) || !(8 <= \old(a17))) || (8 <= a17 && a17 <= 8)) || !(\old(a25) <= 0)) || !(a21 == 1)) || (!(a19 == 1) && a17 <= 8)) || ((!(a28 == 8) && a17 <= 8) && a25 <= 0)) || (((7 == a17 && 7 == a28) && a25 == 1) && a11 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.8s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 318 SDtfs, 5060 SDslu, 482 SDs, 0 SdLazy, 7930 SolverSat, 1510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1999occurred 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: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 589 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 100 PreInvPairs, 196 NumberOfFragments, 359 HoareAnnotationTreeSize, 100 FomulaSimplifications, 404553 FormulaSimplificationTreeSizeReduction, 3.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8817 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1066 NumberOfCodeBlocks, 1066 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1058 ConstructedInterpolants, 0 QuantifiedInterpolants, 498512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 273/298 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...