/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:32:07,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:32:07,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:32:07,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:32:08,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:32:08,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:32:08,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:32:08,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:32:08,075 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:32:08,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:32:08,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:32:08,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:32:08,081 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:32:08,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:32:08,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:32:08,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:32:08,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:32:08,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:32:08,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:32:08,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:32:08,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:32:08,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:32:08,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:32:08,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:32:08,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:32:08,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:32:08,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:32:08,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:32:08,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:32:08,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:32:08,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:32:08,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:32:08,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:32:08,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:32:08,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:32:08,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:32:08,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:32:08,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:32:08,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:32:08,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:32:08,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:32:08,540 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:32:08,540 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:32:08,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-11-06 22:32:08,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2406fcd38/9afbdff74a9444b695ee4c1447807e0d/FLAGd0f992f24 [2020-11-06 22:32:09,445 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:32:09,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-11-06 22:32:09,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2406fcd38/9afbdff74a9444b695ee4c1447807e0d/FLAGd0f992f24 [2020-11-06 22:32:09,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2406fcd38/9afbdff74a9444b695ee4c1447807e0d [2020-11-06 22:32:09,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:32:09,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:32:09,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:32:09,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:32:09,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:32:09,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:09" (1/1) ... [2020-11-06 22:32:09,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc720d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:09, skipping insertion in model container [2020-11-06 22:32:09,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:09" (1/1) ... [2020-11-06 22:32:09,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:32:09,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:32:10,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:32:10,139 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:32:10,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:32:10,294 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:32:10,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10 WrapperNode [2020-11-06 22:32:10,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:32:10,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:32:10,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:32:10,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:32:10,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (1/1) ... [2020-11-06 22:32:10,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (1/1) ... [2020-11-06 22:32:10,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (1/1) ... [2020-11-06 22:32:10,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (1/1) ... [2020-11-06 22:32:10,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (1/1) ... [2020-11-06 22:32:10,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (1/1) ... [2020-11-06 22:32:10,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (1/1) ... [2020-11-06 22:32:10,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:32:10,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:32:10,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:32:10,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:32:10,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:32:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:32:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:32:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:32:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:32:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:32:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:32:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:32:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:32:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:32:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:32:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:32:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:32:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:32:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:32:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:32:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:32:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:32:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:32:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:32:11,884 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:32:11,885 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:32:11,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:11 BoogieIcfgContainer [2020-11-06 22:32:11,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:32:11,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:32:11,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:32:11,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:32:11,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:09" (1/3) ... [2020-11-06 22:32:11,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1050cec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:11, skipping insertion in model container [2020-11-06 22:32:11,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:10" (2/3) ... [2020-11-06 22:32:11,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1050cec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:11, skipping insertion in model container [2020-11-06 22:32:11,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:11" (3/3) ... [2020-11-06 22:32:11,896 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-11-06 22:32:11,911 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:32:11,915 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:32:11,928 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:32:11,957 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:32:11,957 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:32:11,957 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:32:11,958 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:32:11,958 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:32:11,958 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:32:11,958 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:32:11,958 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:32:11,981 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-11-06 22:32:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-11-06 22:32:11,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:11,994 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] [2020-11-06 22:32:11,994 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:12,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:12,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1723079445, now seen corresponding path program 1 times [2020-11-06 22:32:12,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:12,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577526931] [2020-11-06 22:32:12,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:12,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:12,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577526931] [2020-11-06 22:32:12,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:32:12,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 22:32:12,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361758523] [2020-11-06 22:32:12,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:32:12,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:12,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:32:12,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:32:12,771 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-11-06 22:32:15,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:15,082 INFO L93 Difference]: Finished difference Result 703 states and 1239 transitions. [2020-11-06 22:32:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 22:32:15,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-11-06 22:32:15,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:15,102 INFO L225 Difference]: With dead ends: 703 [2020-11-06 22:32:15,102 INFO L226 Difference]: Without dead ends: 424 [2020-11-06 22:32:15,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:32:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-11-06 22:32:15,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-11-06 22:32:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-11-06 22:32:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 586 transitions. [2020-11-06 22:32:15,208 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 586 transitions. Word has length 101 [2020-11-06 22:32:15,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:15,209 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 586 transitions. [2020-11-06 22:32:15,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:32:15,210 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 586 transitions. [2020-11-06 22:32:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-11-06 22:32:15,217 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:15,218 INFO L422 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:15,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:32:15,218 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:15,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:15,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1301051185, now seen corresponding path program 1 times [2020-11-06 22:32:15,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:15,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115891518] [2020-11-06 22:32:15,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:15,528 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:32:15,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:15,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:15,633 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:15,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115891518] [2020-11-06 22:32:15,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:32:15,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:32:15,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236431623] [2020-11-06 22:32:15,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:32:15,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:15,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:32:15,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:32:15,637 INFO L87 Difference]: Start difference. First operand 418 states and 586 transitions. Second operand 8 states. [2020-11-06 22:32:17,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:17,271 INFO L93 Difference]: Finished difference Result 1132 states and 1660 transitions. [2020-11-06 22:32:17,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 22:32:17,272 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2020-11-06 22:32:17,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:17,279 INFO L225 Difference]: With dead ends: 1132 [2020-11-06 22:32:17,279 INFO L226 Difference]: Without dead ends: 720 [2020-11-06 22:32:17,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:32:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-11-06 22:32:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 698. [2020-11-06 22:32:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-11-06 22:32:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 979 transitions. [2020-11-06 22:32:17,353 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 979 transitions. Word has length 111 [2020-11-06 22:32:17,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:17,354 INFO L481 AbstractCegarLoop]: Abstraction has 698 states and 979 transitions. [2020-11-06 22:32:17,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:32:17,354 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 979 transitions. [2020-11-06 22:32:17,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-11-06 22:32:17,362 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:17,362 INFO L422 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:17,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:32:17,363 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:17,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:17,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1426351886, now seen corresponding path program 1 times [2020-11-06 22:32:17,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:17,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430615998] [2020-11-06 22:32:17,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:17,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:17,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:17,716 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-06 22:32:17,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430615998] [2020-11-06 22:32:17,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104946765] [2020-11-06 22:32:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:17,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-06 22:32:17,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:17,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:32:17,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-11-06 22:32:17,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055702927] [2020-11-06 22:32:17,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:32:17,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:17,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:32:17,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:32:17,967 INFO L87 Difference]: Start difference. First operand 698 states and 979 transitions. Second operand 3 states. [2020-11-06 22:32:18,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:18,692 INFO L93 Difference]: Finished difference Result 1938 states and 2760 transitions. [2020-11-06 22:32:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:32:18,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-11-06 22:32:18,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:18,702 INFO L225 Difference]: With dead ends: 1938 [2020-11-06 22:32:18,703 INFO L226 Difference]: Without dead ends: 1246 [2020-11-06 22:32:18,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:32:18,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2020-11-06 22:32:18,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1244. [2020-11-06 22:32:18,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1244 states. [2020-11-06 22:32:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1662 transitions. [2020-11-06 22:32:18,808 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1662 transitions. Word has length 112 [2020-11-06 22:32:18,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:18,808 INFO L481 AbstractCegarLoop]: Abstraction has 1244 states and 1662 transitions. [2020-11-06 22:32:18,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:32:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1662 transitions. [2020-11-06 22:32:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-11-06 22:32:18,818 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:18,818 INFO L422 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, 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] [2020-11-06 22:32:19,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:32:19,034 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:19,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:19,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1377368205, now seen corresponding path program 1 times [2020-11-06 22:32:19,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:19,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846831102] [2020-11-06 22:32:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:19,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:19,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:19,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:32:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-06 22:32:19,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846831102] [2020-11-06 22:32:19,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000303157] [2020-11-06 22:32:19,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:19,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-06 22:32:19,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:19,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:32:19,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:32:19,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71283224] [2020-11-06 22:32:19,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:32:19,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:19,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:32:19,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:32:19,529 INFO L87 Difference]: Start difference. First operand 1244 states and 1662 transitions. Second operand 10 states. [2020-11-06 22:32:22,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:22,478 INFO L93 Difference]: Finished difference Result 3527 states and 5002 transitions. [2020-11-06 22:32:22,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-11-06 22:32:22,479 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 143 [2020-11-06 22:32:22,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:22,500 INFO L225 Difference]: With dead ends: 3527 [2020-11-06 22:32:22,500 INFO L226 Difference]: Without dead ends: 2289 [2020-11-06 22:32:22,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2020-11-06 22:32:22,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2020-11-06 22:32:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 1421. [2020-11-06 22:32:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1421 states. [2020-11-06 22:32:22,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1898 transitions. [2020-11-06 22:32:22,618 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1898 transitions. Word has length 143 [2020-11-06 22:32:22,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:22,620 INFO L481 AbstractCegarLoop]: Abstraction has 1421 states and 1898 transitions. [2020-11-06 22:32:22,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:32:22,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1898 transitions. [2020-11-06 22:32:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-06 22:32:22,635 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:22,636 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-06 22:32:22,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:22,851 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:22,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:22,852 INFO L82 PathProgramCache]: Analyzing trace with hash -2021111885, now seen corresponding path program 1 times [2020-11-06 22:32:22,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:22,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611801218] [2020-11-06 22:32:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:23,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:23,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:23,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-06 22:32:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-06 22:32:23,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611801218] [2020-11-06 22:32:23,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494373071] [2020-11-06 22:32:23,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:23,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-06 22:32:23,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-11-06 22:32:23,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:32:23,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-11-06 22:32:23,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930510264] [2020-11-06 22:32:23,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 22:32:23,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:23,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 22:32:23,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:32:23,448 INFO L87 Difference]: Start difference. First operand 1421 states and 1898 transitions. Second operand 9 states. [2020-11-06 22:32:26,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:26,589 INFO L93 Difference]: Finished difference Result 4352 states and 6179 transitions. [2020-11-06 22:32:26,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-06 22:32:26,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-11-06 22:32:26,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:26,612 INFO L225 Difference]: With dead ends: 4352 [2020-11-06 22:32:26,612 INFO L226 Difference]: Without dead ends: 2937 [2020-11-06 22:32:26,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2020-11-06 22:32:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2020-11-06 22:32:26,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2724. [2020-11-06 22:32:26,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2724 states. [2020-11-06 22:32:26,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3552 transitions. [2020-11-06 22:32:26,746 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3552 transitions. Word has length 167 [2020-11-06 22:32:26,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:26,750 INFO L481 AbstractCegarLoop]: Abstraction has 2724 states and 3552 transitions. [2020-11-06 22:32:26,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 22:32:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3552 transitions. [2020-11-06 22:32:26,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-11-06 22:32:26,760 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:26,761 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:26,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:26,975 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:26,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:26,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1429794508, now seen corresponding path program 1 times [2020-11-06 22:32:26,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:26,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234923485] [2020-11-06 22:32:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:27,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:27,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:27,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:32:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:27,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-06 22:32:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:27,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-11-06 22:32:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-06 22:32:27,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234923485] [2020-11-06 22:32:27,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813288094] [2020-11-06 22:32:27,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:27,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:32:27,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-11-06 22:32:27,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:32:27,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:32:27,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691629985] [2020-11-06 22:32:27,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:32:27,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:27,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:32:27,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:32:27,526 INFO L87 Difference]: Start difference. First operand 2724 states and 3552 transitions. Second operand 10 states. [2020-11-06 22:32:27,831 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-11-06 22:32:32,217 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-11-06 22:32:32,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:32,745 INFO L93 Difference]: Finished difference Result 6971 states and 9331 transitions. [2020-11-06 22:32:32,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-06 22:32:32,746 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2020-11-06 22:32:32,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:32,768 INFO L225 Difference]: With dead ends: 6971 [2020-11-06 22:32:32,769 INFO L226 Difference]: Without dead ends: 3818 [2020-11-06 22:32:32,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=181, Invalid=689, Unknown=0, NotChecked=0, Total=870 [2020-11-06 22:32:32,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2020-11-06 22:32:32,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3500. [2020-11-06 22:32:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3500 states. [2020-11-06 22:32:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 4154 transitions. [2020-11-06 22:32:32,933 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 4154 transitions. Word has length 184 [2020-11-06 22:32:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:32,933 INFO L481 AbstractCegarLoop]: Abstraction has 3500 states and 4154 transitions. [2020-11-06 22:32:32,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:32:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 4154 transitions. [2020-11-06 22:32:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-11-06 22:32:32,944 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:32,945 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:33,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:33,160 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:33,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:33,161 INFO L82 PathProgramCache]: Analyzing trace with hash 270073152, now seen corresponding path program 1 times [2020-11-06 22:32:33,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:33,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527382161] [2020-11-06 22:32:33,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:33,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:33,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:33,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-06 22:32:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-11-06 22:32:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:33,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-11-06 22:32:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 110 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-06 22:32:33,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527382161] [2020-11-06 22:32:33,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857735315] [2020-11-06 22:32:33,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:33,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-06 22:32:33,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-11-06 22:32:33,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:32:33,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 10 [2020-11-06 22:32:33,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313355192] [2020-11-06 22:32:33,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:32:33,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:33,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:32:33,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:32:33,861 INFO L87 Difference]: Start difference. First operand 3500 states and 4154 transitions. Second operand 10 states. [2020-11-06 22:32:35,013 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-11-06 22:32:36,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:36,514 INFO L93 Difference]: Finished difference Result 6390 states and 7731 transitions. [2020-11-06 22:32:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-06 22:32:36,515 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 192 [2020-11-06 22:32:36,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:36,516 INFO L225 Difference]: With dead ends: 6390 [2020-11-06 22:32:36,516 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:32:36,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2020-11-06 22:32:36,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:32:36,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:32:36,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:32:36,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:32:36,535 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 192 [2020-11-06 22:32:36,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:36,535 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:32:36,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:32:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:32:36,535 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:32:36,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-06 22:32:36,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:32:38,136 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 181 [2020-11-06 22:32:38,469 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 181 [2020-11-06 22:32:38,639 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 36 [2020-11-06 22:32:39,533 WARN L194 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 64 [2020-11-06 22:32:40,092 WARN L194 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 52 [2020-11-06 22:32:40,665 WARN L194 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 52 [2020-11-06 22:32:40,914 WARN L194 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2020-11-06 22:32:40,918 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:32:40,919 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:32:40,919 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:32:40,919 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:32:40,919 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:32:40,919 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-11-06 22:32:40,919 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:32:40,920 INFO L266 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,920 INFO L266 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,920 INFO L266 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,920 INFO L266 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,920 INFO L266 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,920 INFO L266 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,920 INFO L266 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-11-06 22:32:40,920 INFO L266 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-11-06 22:32:40,921 INFO L266 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-11-06 22:32:40,922 INFO L266 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,923 INFO L266 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-11-06 22:32:40,924 INFO L266 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,925 INFO L266 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-11-06 22:32:40,926 INFO L266 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-11-06 22:32:40,927 INFO L266 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-11-06 22:32:40,928 INFO L266 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,929 INFO L266 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,930 INFO L266 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-11-06 22:32:40,931 INFO L266 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-11-06 22:32:40,932 INFO L266 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-11-06 22:32:40,933 INFO L266 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-11-06 22:32:40,933 INFO L266 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-11-06 22:32:40,933 INFO L266 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-11-06 22:32:40,933 INFO L266 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-11-06 22:32:40,933 INFO L266 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-11-06 22:32:40,933 INFO L266 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,933 INFO L266 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse11 (= ~a21~0 1)) (.cse15 (= ~a7~0 |old(~a7~0)|)) (.cse10 (= ~a17~0 |old(~a17~0)|)) (.cse12 (= ~a20~0 |old(~a20~0)|)) (.cse13 (= ~a16~0 |old(~a16~0)|)) (.cse14 (= ~a8~0 |old(~a8~0)|))) (let ((.cse4 (not (<= |old(~a21~0)| 0))) (.cse6 (not (<= |old(~a8~0)| 13))) (.cse8 (and .cse15 .cse10 (= ~a21~0 |old(~a21~0)|) .cse12 .cse13 .cse14)) (.cse9 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a7~0)| 0))) (.cse3 (and .cse15 .cse10 .cse11 .cse12 .cse13 .cse14)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse5 (not (= |old(~a7~0)| 1))) (.cse7 (not (= |old(~a20~0)| 1))) (.cse2 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse5 .cse6 .cse7 .cse2 .cse3) (or .cse0 (not (<= 15 |old(~a8~0)|)) .cse3 .cse2) (or .cse9 .cse4 .cse1 .cse5 .cse6 .cse8) (or .cse9 .cse0 .cse7 .cse3 .cse2) (or (and .cse10 .cse11 (= ~a7~0 1) .cse12 .cse13 .cse14) (and (or (= |old(~a8~0)| 13) .cse1 .cse5 .cse2) (or .cse1 .cse5 .cse7 .cse2)))))) [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-11-06 22:32:40,934 INFO L266 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,935 INFO L266 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,936 INFO L266 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-11-06 22:32:40,936 INFO L266 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-11-06 22:32:40,936 INFO L266 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-11-06 22:32:40,936 INFO L266 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-11-06 22:32:40,936 INFO L266 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-11-06 22:32:40,936 INFO L262 CegarLoopResult]: At program point L460(line 460) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a16~0)| 5))) (.cse4 (not (<= |old(~a21~0)| 0))) (.cse1 (not (= |old(~a7~0)| 1))) (.cse5 (not (<= |old(~a8~0)| 13))) (.cse3 (not (= |old(~a17~0)| 1))) (.cse6 (not (= |old(~a20~0)| 1))) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse2 (not (= |old(~a21~0)| 1)))) (and (or (= |old(~a8~0)| 13) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse1 .cse5) (or .cse3 .cse1 .cse5 .cse6 .cse2) (or .cse0 .cse1 .cse6 .cse2) (or .cse7 .cse0 .cse2) (or .cse4 .cse1 .cse5 .cse6) (or .cse3 .cse7 .cse6 .cse2) (or .cse7 (not (<= 15 |old(~a8~0)|)) .cse2))) [2020-11-06 22:32:40,936 INFO L266 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-11-06 22:32:40,936 INFO L266 CegarLoopResult]: For program point L460-1(line 460) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,937 INFO L266 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-11-06 22:32:40,938 INFO L266 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-11-06 22:32:40,939 INFO L266 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-11-06 22:32:40,939 INFO L266 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-11-06 22:32:40,939 INFO L266 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-11-06 22:32:40,939 INFO L266 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-11-06 22:32:40,939 INFO L266 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-11-06 22:32:40,939 INFO L266 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-11-06 22:32:40,939 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:32:40,939 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (<= ~a7~0 0) (= ~a20~0 1) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-11-06 22:32:40,939 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:32:40,940 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:32:40,940 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2020-11-06 22:32:40,940 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-11-06 22:32:40,940 INFO L262 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1)) (.cse0 (= ~a21~0 1)) (.cse5 (= ~a7~0 1)) (.cse1 (<= ~a16~0 5)) (.cse6 (<= ~a21~0 0)) (.cse4 (= ~a17~0 1)) (.cse7 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse2 .cse3 .cse4) (not (= |old(~a20~0)| 1)) (and .cse5 .cse3 .cse6 .cse7) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2 (<= 15 ~a8~0)) (and .cse5 .cse0 .cse3 .cse4 .cse7) (and .cse5 .cse0 .cse1 .cse3) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse5 .cse1 (not (= ~a8~0 13))) (not (<= 15 |old(~a8~0)|)) (and .cse5 .cse1 .cse6 .cse4 .cse7))) [2020-11-06 22:32:40,940 INFO L266 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-11-06 22:32:40,940 INFO L266 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-06 22:32:40,941 INFO L262 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1)) (.cse0 (= ~a21~0 1)) (.cse5 (= ~a7~0 1)) (.cse1 (<= ~a16~0 5)) (.cse6 (<= ~a21~0 0)) (.cse4 (= ~a17~0 1)) (.cse7 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse2 .cse3 .cse4) (not (= |old(~a20~0)| 1)) (and .cse5 .cse3 .cse6 .cse7) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2 (<= 15 ~a8~0)) (and .cse5 .cse0 .cse3 .cse4 .cse7) (and .cse5 .cse0 .cse1 .cse3) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse5 .cse1 (not (= ~a8~0 13))) (not (<= 15 |old(~a8~0)|)) (and .cse5 .cse1 .cse6 .cse4 .cse7))) [2020-11-06 22:32:40,941 INFO L266 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-11-06 22:32:40,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:32:40 BoogieIcfgContainer [2020-11-06 22:32:40,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:32:40,962 INFO L168 Benchmark]: Toolchain (without parser) took 31325.21 ms. Allocated memory was 151.0 MB in the beginning and 629.1 MB in the end (delta: 478.2 MB). Free memory was 124.6 MB in the beginning and 347.5 MB in the end (delta: -222.9 MB). Peak memory consumption was 312.8 MB. Max. memory is 8.0 GB. [2020-11-06 22:32:40,963 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:32:40,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.04 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 129.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:32:40,964 INFO L168 Benchmark]: Boogie Preprocessor took 128.70 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 124.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:32:40,965 INFO L168 Benchmark]: RCFGBuilder took 1462.05 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 124.4 MB in the beginning and 143.8 MB in the end (delta: -19.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-11-06 22:32:40,966 INFO L168 Benchmark]: TraceAbstraction took 29072.47 ms. Allocated memory was 192.9 MB in the beginning and 629.1 MB in the end (delta: 436.2 MB). Free memory was 143.2 MB in the beginning and 347.5 MB in the end (delta: -204.3 MB). Peak memory consumption was 289.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:32:40,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 651.04 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 129.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.70 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 124.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1462.05 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 124.4 MB in the beginning and 143.8 MB in the end (delta: -19.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29072.47 ms. Allocated memory was 192.9 MB in the beginning and 629.1 MB in the end (delta: 436.2 MB). Free memory was 143.2 MB in the beginning and 347.5 MB in the end (delta: -204.3 MB). Peak memory consumption was 289.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 585]: Loop Invariant Derived loop invariant: ((((((((((((((a21 == 1 && a16 <= 5) && a7 <= 0) || !(\old(a7) <= 0)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a17 == 1)) || !(\old(a20) == 1)) || (((a7 == 1 && a20 == 1) && a21 <= 0) && a8 <= 13)) || !(\old(a21) == 1)) || ((a21 == 1 && a7 <= 0) && 15 <= a8)) || ((((a7 == 1 && a21 == 1) && a20 == 1) && a17 == 1) && a8 <= 13)) || (((a7 == 1 && a21 == 1) && a16 <= 5) && a20 == 1)) || !(\old(a17) == 1)) || !(\old(a16) <= 5)) || (((a21 == 1 && a7 == 1) && a16 <= 5) && !(a8 == 13))) || !(15 <= \old(a8))) || ((((a7 == 1 && a16 <= 5) && a21 <= 0) && a17 == 1) && a8 <= 13) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.7s, OverallIterations: 7, TraceHistogramMax: 5, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 251 SDtfs, 5695 SDslu, 466 SDs, 0 SdLazy, 8832 SolverSat, 2132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1000 GetRequests, 873 SyntacticMatches, 3 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3500occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 1429 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 243 PreInvPairs, 339 NumberOfFragments, 820 HoareAnnotationTreeSize, 243 FomulaSimplifications, 177285 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 12132 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1808 NumberOfCodeBlocks, 1808 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1796 ConstructedInterpolants, 0 QuantifiedInterpolants, 696069 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2715 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 683/821 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...