/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:29:49,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:29:49,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:29:49,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:29:49,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:29:50,010 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:29:50,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:29:50,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:29:50,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:29:50,012 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:29:50,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:29:50,012 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:29:50,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:29:50,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:29:50,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:29:50,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:29:50,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:29:50,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:29:50,014 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:29:50,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:29:50,014 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:29:50,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:29:50,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:29:50,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:29:50,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:29:50,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:29:50,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:29:50,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:29:50,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:29:50,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:29:50,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:29:50,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:29:50,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:29:50,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:29:50,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:29:50,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:29:50,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:29:50,353 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:29:50,354 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:29:50,354 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label27.c [2019-11-06 22:29:50,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db0e87d1/385c9c15032a4471b7568868c569010f/FLAGee49bda52 [2019-11-06 22:29:51,020 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:29:51,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label27.c [2019-11-06 22:29:51,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db0e87d1/385c9c15032a4471b7568868c569010f/FLAGee49bda52 [2019-11-06 22:29:51,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db0e87d1/385c9c15032a4471b7568868c569010f [2019-11-06 22:29:51,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:29:51,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:29:51,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:29:51,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:29:51,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:29:51,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:51" (1/1) ... [2019-11-06 22:29:51,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcc905c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:51, skipping insertion in model container [2019-11-06 22:29:51,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:51" (1/1) ... [2019-11-06 22:29:51,384 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:29:51,483 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:29:52,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:29:52,013 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:29:52,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:29:52,114 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:29:52,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52 WrapperNode [2019-11-06 22:29:52,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:29:52,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:29:52,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:29:52,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:29:52,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (1/1) ... [2019-11-06 22:29:52,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (1/1) ... [2019-11-06 22:29:52,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (1/1) ... [2019-11-06 22:29:52,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (1/1) ... [2019-11-06 22:29:52,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (1/1) ... [2019-11-06 22:29:52,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (1/1) ... [2019-11-06 22:29:52,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (1/1) ... [2019-11-06 22:29:52,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:29:52,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:29:52,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:29:52,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:29:52,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:29:52,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:29:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:29:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 22:29:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:29:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 22:29:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:29:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:29:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:29:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:29:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:29:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:29:53,501 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:29:53,501 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 22:29:53,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:53 BoogieIcfgContainer [2019-11-06 22:29:53,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:29:53,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:29:53,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:29:53,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:29:53,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:29:51" (1/3) ... [2019-11-06 22:29:53,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7e073c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:53, skipping insertion in model container [2019-11-06 22:29:53,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:52" (2/3) ... [2019-11-06 22:29:53,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7e073c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:53, skipping insertion in model container [2019-11-06 22:29:53,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:53" (3/3) ... [2019-11-06 22:29:53,524 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label27.c [2019-11-06 22:29:53,541 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:29:53,551 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:29:53,566 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:29:53,610 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:29:53,610 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:29:53,612 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:29:53,612 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:29:53,612 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:29:53,613 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:29:53,613 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:29:53,613 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:29:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2019-11-06 22:29:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-11-06 22:29:53,672 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:53,673 INFO L410 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] [2019-11-06 22:29:53,675 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:53,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:53,683 INFO L82 PathProgramCache]: Analyzing trace with hash -2139727354, now seen corresponding path program 1 times [2019-11-06 22:29:53,693 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:53,693 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415957534] [2019-11-06 22:29:53,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:54,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:54,230 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415957534] [2019-11-06 22:29:54,231 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:54,232 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:29:54,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990120943] [2019-11-06 22:29:54,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:29:54,240 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:54,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:29:54,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:29:54,258 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2019-11-06 22:29:55,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:55,539 INFO L93 Difference]: Finished difference Result 698 states and 1223 transitions. [2019-11-06 22:29:55,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:29:55,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-11-06 22:29:55,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:55,559 INFO L225 Difference]: With dead ends: 698 [2019-11-06 22:29:55,560 INFO L226 Difference]: Without dead ends: 413 [2019-11-06 22:29:55,567 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:29:55,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-11-06 22:29:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 278. [2019-11-06 22:29:55,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-11-06 22:29:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2019-11-06 22:29:55,641 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 94 [2019-11-06 22:29:55,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:55,642 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2019-11-06 22:29:55,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:29:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2019-11-06 22:29:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-11-06 22:29:55,648 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:55,649 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:29:55,649 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:55,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:55,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1455606109, now seen corresponding path program 1 times [2019-11-06 22:29:55,650 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:55,650 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745707313] [2019-11-06 22:29:55,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:55,798 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745707313] [2019-11-06 22:29:55,798 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:55,799 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:29:55,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52203516] [2019-11-06 22:29:55,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:29:55,804 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:55,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:29:55,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:29:55,804 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 6 states. [2019-11-06 22:29:56,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:56,593 INFO L93 Difference]: Finished difference Result 840 states and 1243 transitions. [2019-11-06 22:29:56,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:29:56,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2019-11-06 22:29:56,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:56,601 INFO L225 Difference]: With dead ends: 840 [2019-11-06 22:29:56,601 INFO L226 Difference]: Without dead ends: 568 [2019-11-06 22:29:56,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:29:56,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2019-11-06 22:29:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2019-11-06 22:29:56,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-11-06 22:29:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 799 transitions. [2019-11-06 22:29:56,681 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 799 transitions. Word has length 104 [2019-11-06 22:29:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:56,682 INFO L462 AbstractCegarLoop]: Abstraction has 556 states and 799 transitions. [2019-11-06 22:29:56,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:29:56,682 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 799 transitions. [2019-11-06 22:29:56,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-11-06 22:29:56,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:56,698 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:29:56,699 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:56,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:56,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1089398559, now seen corresponding path program 1 times [2019-11-06 22:29:56,699 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:56,700 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781807829] [2019-11-06 22:29:56,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:56,885 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:56,885 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781807829] [2019-11-06 22:29:56,886 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:56,886 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:29:56,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25732984] [2019-11-06 22:29:56,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:29:56,887 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:56,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:29:56,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:29:56,888 INFO L87 Difference]: Start difference. First operand 556 states and 799 transitions. Second operand 3 states. [2019-11-06 22:29:57,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:57,389 INFO L93 Difference]: Finished difference Result 1513 states and 2201 transitions. [2019-11-06 22:29:57,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:29:57,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-11-06 22:29:57,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:57,396 INFO L225 Difference]: With dead ends: 1513 [2019-11-06 22:29:57,396 INFO L226 Difference]: Without dead ends: 963 [2019-11-06 22:29:57,401 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:29:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2019-11-06 22:29:57,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2019-11-06 22:29:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2019-11-06 22:29:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1344 transitions. [2019-11-06 22:29:57,438 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1344 transitions. Word has length 105 [2019-11-06 22:29:57,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:57,439 INFO L462 AbstractCegarLoop]: Abstraction has 963 states and 1344 transitions. [2019-11-06 22:29:57,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:29:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1344 transitions. [2019-11-06 22:29:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-06 22:29:57,443 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:57,443 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:29:57,443 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:57,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:57,444 INFO L82 PathProgramCache]: Analyzing trace with hash -414370937, now seen corresponding path program 1 times [2019-11-06 22:29:57,444 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:57,444 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024680094] [2019-11-06 22:29:57,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:57,553 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:57,553 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024680094] [2019-11-06 22:29:57,553 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:57,553 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:29:57,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138363547] [2019-11-06 22:29:57,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:29:57,555 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:57,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:29:57,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:29:57,555 INFO L87 Difference]: Start difference. First operand 963 states and 1344 transitions. Second operand 6 states. [2019-11-06 22:29:58,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:58,389 INFO L93 Difference]: Finished difference Result 2502 states and 3606 transitions. [2019-11-06 22:29:58,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:29:58,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2019-11-06 22:29:58,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:58,399 INFO L225 Difference]: With dead ends: 2502 [2019-11-06 22:29:58,399 INFO L226 Difference]: Without dead ends: 1545 [2019-11-06 22:29:58,402 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:29:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2019-11-06 22:29:58,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1527. [2019-11-06 22:29:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2019-11-06 22:29:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2111 transitions. [2019-11-06 22:29:58,461 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2111 transitions. Word has length 117 [2019-11-06 22:29:58,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:58,462 INFO L462 AbstractCegarLoop]: Abstraction has 1527 states and 2111 transitions. [2019-11-06 22:29:58,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:29:58,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2111 transitions. [2019-11-06 22:29:58,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-11-06 22:29:58,465 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:58,466 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:29:58,466 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:58,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:58,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1750271410, now seen corresponding path program 1 times [2019-11-06 22:29:58,467 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:58,467 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216728144] [2019-11-06 22:29:58,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:58,541 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216728144] [2019-11-06 22:29:58,541 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539610348] [2019-11-06 22:29:58,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:29:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:58,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 22:29:58,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:29:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-06 22:29:58,758 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:29:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-06 22:29:58,853 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-06 22:29:58,853 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-11-06 22:29:58,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755698457] [2019-11-06 22:29:58,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:29:58,855 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:58,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:29:58,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:29:58,857 INFO L87 Difference]: Start difference. First operand 1527 states and 2111 transitions. Second operand 3 states. [2019-11-06 22:29:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:59,504 INFO L93 Difference]: Finished difference Result 3048 states and 4234 transitions. [2019-11-06 22:29:59,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:29:59,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-11-06 22:29:59,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:59,514 INFO L225 Difference]: With dead ends: 3048 [2019-11-06 22:29:59,514 INFO L226 Difference]: Without dead ends: 1527 [2019-11-06 22:29:59,519 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:29:59,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2019-11-06 22:29:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1392. [2019-11-06 22:29:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2019-11-06 22:29:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1872 transitions. [2019-11-06 22:29:59,580 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1872 transitions. Word has length 128 [2019-11-06 22:29:59,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:59,582 INFO L462 AbstractCegarLoop]: Abstraction has 1392 states and 1872 transitions. [2019-11-06 22:29:59,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:29:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1872 transitions. [2019-11-06 22:29:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-11-06 22:29:59,589 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:59,590 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:29:59,792 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:29:59,792 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:59,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:59,793 INFO L82 PathProgramCache]: Analyzing trace with hash 605294125, now seen corresponding path program 1 times [2019-11-06 22:29:59,793 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:59,793 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664494229] [2019-11-06 22:29:59,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:59,898 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:59,899 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664494229] [2019-11-06 22:29:59,899 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:59,899 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:29:59,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119265920] [2019-11-06 22:29:59,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:29:59,900 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:59,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:29:59,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:29:59,901 INFO L87 Difference]: Start difference. First operand 1392 states and 1872 transitions. Second operand 3 states. [2019-11-06 22:30:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:30:00,429 INFO L93 Difference]: Finished difference Result 3048 states and 4116 transitions. [2019-11-06 22:30:00,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:30:00,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-11-06 22:30:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:30:00,430 INFO L225 Difference]: With dead ends: 3048 [2019-11-06 22:30:00,430 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:30:00,436 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:30:00,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:30:00,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:30:00,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:30:00,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:30:00,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 128 [2019-11-06 22:30:00,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:30:00,437 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:30:00,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:30:00,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:30:00,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:30:00,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:30:00,890 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 41 [2019-11-06 22:30:00,996 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:30:00,997 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) [2019-11-06 22:30:00,997 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:30:00,997 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-06 22:30:00,997 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-06 22:30:00,997 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:00,998 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:00,998 INFO L443 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:00,998 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:00,998 INFO L443 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:00,998 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:00,998 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-06 22:30:00,998 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-06 22:30:00,998 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-06 22:30:00,999 INFO L443 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-06 22:30:00,999 INFO L443 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-06 22:30:00,999 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-06 22:30:00,999 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-06 22:30:00,999 INFO L443 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-06 22:30:00,999 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-06 22:30:00,999 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-06 22:30:00,999 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,000 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,000 INFO L443 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,000 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,000 INFO L443 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,000 INFO L443 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,000 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-06 22:30:01,000 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-06 22:30:01,001 INFO L443 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-06 22:30:01,001 INFO L443 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-06 22:30:01,001 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-06 22:30:01,001 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-06 22:30:01,001 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-06 22:30:01,001 INFO L443 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-06 22:30:01,001 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-06 22:30:01,001 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-06 22:30:01,002 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-06 22:30:01,002 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-06 22:30:01,002 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-06 22:30:01,002 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-06 22:30:01,002 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-06 22:30:01,002 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,002 INFO L443 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,002 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,003 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,003 INFO L443 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,003 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-06 22:30:01,003 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-06 22:30:01,003 INFO L443 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-06 22:30:01,003 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-06 22:30:01,003 INFO L443 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-06 22:30:01,004 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-06 22:30:01,004 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-06 22:30:01,004 INFO L443 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-06 22:30:01,004 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-06 22:30:01,004 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,004 INFO L443 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,004 INFO L443 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,005 INFO L443 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,005 INFO L443 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,005 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-06 22:30:01,005 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-06 22:30:01,005 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-06 22:30:01,005 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-06 22:30:01,005 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-06 22:30:01,006 INFO L443 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-06 22:30:01,006 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-06 22:30:01,006 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-06 22:30:01,006 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-06 22:30:01,006 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-06 22:30:01,006 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2019-11-06 22:30:01,007 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-06 22:30:01,007 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-06 22:30:01,007 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-06 22:30:01,007 INFO L443 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,007 INFO L443 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,007 INFO L443 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,007 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,008 INFO L443 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,008 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-06 22:30:01,011 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-06 22:30:01,011 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-06 22:30:01,011 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-06 22:30:01,011 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-06 22:30:01,011 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-06 22:30:01,012 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-06 22:30:01,012 INFO L443 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-06 22:30:01,012 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-06 22:30:01,012 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,012 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,012 INFO L443 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,012 INFO L443 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,013 INFO L443 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,013 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,013 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-06 22:30:01,013 INFO L443 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,013 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-06 22:30:01,013 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-06 22:30:01,013 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-06 22:30:01,014 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-06 22:30:01,014 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-06 22:30:01,014 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-06 22:30:01,014 INFO L443 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-06 22:30:01,014 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-06 22:30:01,014 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-06 22:30:01,014 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-06 22:30:01,014 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-06 22:30:01,015 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-06 22:30:01,015 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-06 22:30:01,015 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,015 INFO L443 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,015 INFO L443 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,015 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,015 INFO L443 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,016 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-06 22:30:01,016 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-06 22:30:01,016 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-06 22:30:01,016 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-06 22:30:01,016 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-06 22:30:01,016 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-06 22:30:01,016 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-06 22:30:01,017 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-06 22:30:01,017 INFO L443 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,017 INFO L443 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,017 INFO L443 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,017 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,017 INFO L443 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,017 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-06 22:30:01,017 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-06 22:30:01,018 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-06 22:30:01,018 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-06 22:30:01,018 INFO L443 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-06 22:30:01,018 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-06 22:30:01,018 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-06 22:30:01,018 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-06 22:30:01,018 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-06 22:30:01,018 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-06 22:30:01,019 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse4 (or (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0)))) (.cse0 (= 6 |old(~a16~0)|)) (.cse1 (= ~a17~0 1)) (.cse5 (and (= |old(~a7~0)| |old(~a20~0)|) (= 1 |old(~a20~0)|))) (.cse3 (not (= 1 |old(~a17~0)|))) (.cse6 (= ~a16~0 |old(~a16~0)|)) (.cse7 (= ~a8~0 |old(~a8~0)|)) (.cse2 (= 15 |old(~a8~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5) (or (and .cse6 .cse7 .cse4) (or (= 13 |old(~a8~0)|) .cse5)) (or (and .cse1 .cse4) .cse5 .cse2 .cse3) (or .cse0 .cse1 .cse5 .cse3) (or (and .cse6 .cse7) .cse2))) [2019-11-06 22:30:01,019 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-06 22:30:01,019 INFO L443 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,019 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,019 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,019 INFO L443 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,020 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-06 22:30:01,020 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,020 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,020 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-06 22:30:01,020 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-06 22:30:01,020 INFO L443 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-06 22:30:01,020 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-06 22:30:01,021 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-06 22:30:01,021 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-06 22:30:01,021 INFO L443 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-06 22:30:01,021 INFO L443 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-06 22:30:01,021 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-06 22:30:01,021 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-06 22:30:01,021 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-06 22:30:01,022 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-06 22:30:01,022 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,022 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,022 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,022 INFO L443 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,022 INFO L443 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,022 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-06 22:30:01,022 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-06 22:30:01,023 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-06 22:30:01,024 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-06 22:30:01,024 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-06 22:30:01,024 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-06 22:30:01,024 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-06 22:30:01,024 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-06 22:30:01,024 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,024 INFO L443 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,024 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,025 INFO L443 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,025 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,025 INFO L443 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:30:01,025 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-06 22:30:01,025 INFO L443 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-06 22:30:01,025 INFO L443 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-06 22:30:01,025 INFO L443 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-06 22:30:01,026 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-06 22:30:01,026 INFO L443 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-06 22:30:01,026 INFO L443 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-06 22:30:01,026 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-06 22:30:01,026 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-06 22:30:01,026 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-06 22:30:01,026 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:30:01,027 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (= ~a17~0 1) (not (= ~a20~0 ~a7~0)) (not (= ~a8~0 13))) [2019-11-06 22:30:01,027 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:30:01,027 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:30:01,027 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 13 |old(~a8~0)|) (and (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a17~0 1) (not (= ~a20~0 ~a7~0))) (= |old(~a7~0)| |old(~a20~0)|) (not (= 1 |old(~a17~0)|))) [2019-11-06 22:30:01,027 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-11-06 22:30:01,028 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 13 |old(~a8~0)|) (not (= 15 ~a8~0)) (= |old(~a7~0)| |old(~a20~0)|) (or (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0))) (not (= 1 |old(~a17~0)|))) [2019-11-06 22:30:01,028 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-11-06 22:30:01,028 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-06 22:30:01,028 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 13 |old(~a8~0)|) (not (= 15 ~a8~0)) (= |old(~a7~0)| |old(~a20~0)|) (or (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0))) (not (= 1 |old(~a17~0)|))) [2019-11-06 22:30:01,028 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-11-06 22:30:01,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:30:01 BoogieIcfgContainer [2019-11-06 22:30:01,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:30:01,053 INFO L168 Benchmark]: Toolchain (without parser) took 9712.31 ms. Allocated memory was 136.8 MB in the beginning and 342.4 MB in the end (delta: 205.5 MB). Free memory was 100.2 MB in the beginning and 191.6 MB in the end (delta: -91.4 MB). Peak memory consumption was 114.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:30:01,056 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-06 22:30:01,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.36 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 167.4 MB in the end (delta: -67.3 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:30:01,060 INFO L168 Benchmark]: Boogie Preprocessor took 132.25 ms. Allocated memory is still 201.3 MB. Free memory was 167.4 MB in the beginning and 162.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:30:01,061 INFO L168 Benchmark]: RCFGBuilder took 1258.48 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 162.3 MB in the beginning and 177.4 MB in the end (delta: -15.2 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:30:01,064 INFO L168 Benchmark]: TraceAbstraction took 7541.82 ms. Allocated memory was 231.7 MB in the beginning and 342.4 MB in the end (delta: 110.6 MB). Free memory was 177.4 MB in the beginning and 191.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 96.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:30:01,071 INFO L335 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 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.36 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 167.4 MB in the end (delta: -67.3 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.25 ms. Allocated memory is still 201.3 MB. Free memory was 167.4 MB in the beginning and 162.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1258.48 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 162.3 MB in the beginning and 177.4 MB in the end (delta: -15.2 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7541.82 ms. Allocated memory was 231.7 MB in the beginning and 342.4 MB in the end (delta: 110.6 MB). Free memory was 177.4 MB in the beginning and 191.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 96.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 440]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((6 == \old(a16) || 13 == \old(a8)) || !(15 == a8)) || \old(a7) == \old(a20)) || !(1 == a7) || !(a20 == a7)) || !(1 == \old(a17)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Result: SAFE, OverallTime: 7.4s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 549 SDtfs, 1377 SDslu, 143 SDs, 0 SdLazy, 2781 SolverSat, 595 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 297 GetRequests, 271 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1527occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 300 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 53 PreInvPairs, 77 NumberOfFragments, 226 HoareAnnotationTreeSize, 53 FomulaSimplifications, 1155 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 611 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 804 NumberOfCodeBlocks, 804 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 924 ConstructedInterpolants, 0 QuantifiedInterpolants, 303912 SizeOfPredicates, 2 NumberOfNonLiveVariables, 413 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 181/183 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...