/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/Problem10_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:36:45,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:36:45,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:36:45,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:36:45,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:36:45,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:36:45,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:36:45,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:36:45,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:36:45,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:36:45,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:36:45,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:36:45,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:36:45,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:36:45,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:36:45,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:36:45,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:36:45,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:36:45,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:36:45,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:36:45,469 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 [2020-10-23 18:36:45,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:36:45,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:36:45,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:36:45,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:36:45,541 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:36:45,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:36:45,542 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:36:45,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:36:45,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:36:45,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:36:45,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:36:45,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:36:45,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:36:45,545 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:36:45,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:36:45,545 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:36:45,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:36:45,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:36:45,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:36:45,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:36:45,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:36:45,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:36:45,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:36:45,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:36:45,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:36:45,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:36:45,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:36:45,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:36:45,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:36:45,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:36:46,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:36:46,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:36:46,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:36:46,052 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:36:46,052 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:36:46,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-10-23 18:36:46,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef4265bc/0a9593e9d2f44651a2aa260a5a7bc90d/FLAG603813c2f [2020-10-23 18:36:46,921 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:36:46,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-10-23 18:36:46,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef4265bc/0a9593e9d2f44651a2aa260a5a7bc90d/FLAG603813c2f [2020-10-23 18:36:47,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef4265bc/0a9593e9d2f44651a2aa260a5a7bc90d [2020-10-23 18:36:47,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:36:47,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:36:47,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:36:47,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:36:47,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:36:47,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:47,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8c2f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47, skipping insertion in model container [2020-10-23 18:36:47,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:47,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:36:47,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:36:47,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:36:47,756 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:36:47,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:36:47,919 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:36:47,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47 WrapperNode [2020-10-23 18:36:47,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:36:47,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:36:47,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:36:47,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:36:47,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:47,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:47,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:47,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:48,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:48,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:48,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (1/1) ... [2020-10-23 18:36:48,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:36:48,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:36:48,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:36:48,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:36:48,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (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 [2020-10-23 18:36:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:36:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:36:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:36:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:36:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:36:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:36:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:36:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:36:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:36:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:36:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:36:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:36:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:36:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:36:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:36:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:36:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:36:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:36:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:36:49,630 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:36:49,631 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:36:49,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:36:49 BoogieIcfgContainer [2020-10-23 18:36:49,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:36:49,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:36:49,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:36:49,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:36:49,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:36:47" (1/3) ... [2020-10-23 18:36:49,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a88f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:36:49, skipping insertion in model container [2020-10-23 18:36:49,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:47" (2/3) ... [2020-10-23 18:36:49,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a88f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:36:49, skipping insertion in model container [2020-10-23 18:36:49,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:36:49" (3/3) ... [2020-10-23 18:36:49,644 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-10-23 18:36:49,657 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:36:49,663 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:36:49,675 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:36:49,706 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:36:49,707 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:36:49,707 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:36:49,707 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:36:49,707 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:36:49,707 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:36:49,708 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:36:49,708 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:36:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-23 18:36:49,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-23 18:36:49,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:49,742 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] [2020-10-23 18:36:49,743 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:49,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:49,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1024523006, now seen corresponding path program 1 times [2020-10-23 18:36:49,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:49,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109872043] [2020-10-23 18:36:49,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:50,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:50,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109872043] [2020-10-23 18:36:50,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:36:50,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:36:50,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859045961] [2020-10-23 18:36:50,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:36:50,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:50,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:36:50,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:36:50,436 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-23 18:36:52,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:52,605 INFO L93 Difference]: Finished difference Result 601 states and 1027 transitions. [2020-10-23 18:36:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:36:52,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-23 18:36:52,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:52,623 INFO L225 Difference]: With dead ends: 601 [2020-10-23 18:36:52,623 INFO L226 Difference]: Without dead ends: 303 [2020-10-23 18:36:52,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:36:52,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-23 18:36:52,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-23 18:36:52,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-23 18:36:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 431 transitions. [2020-10-23 18:36:52,717 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 431 transitions. Word has length 41 [2020-10-23 18:36:52,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:52,717 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 431 transitions. [2020-10-23 18:36:52,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:36:52,718 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 431 transitions. [2020-10-23 18:36:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-23 18:36:52,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:52,724 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:52,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:36:52,725 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:52,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:52,726 INFO L82 PathProgramCache]: Analyzing trace with hash 664559079, now seen corresponding path program 1 times [2020-10-23 18:36:52,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:52,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529298218] [2020-10-23 18:36:52,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:52,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:52,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:53,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529298218] [2020-10-23 18:36:53,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:36:53,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:36:53,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739545563] [2020-10-23 18:36:53,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:36:53,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:53,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:36:53,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:36:53,106 INFO L87 Difference]: Start difference. First operand 299 states and 431 transitions. Second operand 7 states. [2020-10-23 18:36:55,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:55,211 INFO L93 Difference]: Finished difference Result 910 states and 1353 transitions. [2020-10-23 18:36:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 18:36:55,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2020-10-23 18:36:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:55,227 INFO L225 Difference]: With dead ends: 910 [2020-10-23 18:36:55,228 INFO L226 Difference]: Without dead ends: 617 [2020-10-23 18:36:55,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:36:55,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-23 18:36:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 597. [2020-10-23 18:36:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-23 18:36:55,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 783 transitions. [2020-10-23 18:36:55,321 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 783 transitions. Word has length 115 [2020-10-23 18:36:55,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:55,322 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 783 transitions. [2020-10-23 18:36:55,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:36:55,322 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 783 transitions. [2020-10-23 18:36:55,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-23 18:36:55,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:55,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:55,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:36:55,326 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:55,327 INFO L82 PathProgramCache]: Analyzing trace with hash -391062595, now seen corresponding path program 1 times [2020-10-23 18:36:55,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:55,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183853173] [2020-10-23 18:36:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:55,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:55,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:55,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183853173] [2020-10-23 18:36:55,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551751165] [2020-10-23 18:36:55,664 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 [2020-10-23 18:36:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:55,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:36:55,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:55,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:36:55,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:36:55,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101161095] [2020-10-23 18:36:55,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:36:55,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:55,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:36:55,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:36:55,932 INFO L87 Difference]: Start difference. First operand 597 states and 783 transitions. Second operand 3 states. [2020-10-23 18:36:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:56,995 INFO L93 Difference]: Finished difference Result 1037 states and 1408 transitions. [2020-10-23 18:36:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:36:56,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-10-23 18:36:56,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:57,004 INFO L225 Difference]: With dead ends: 1037 [2020-10-23 18:36:57,005 INFO L226 Difference]: Without dead ends: 1034 [2020-10-23 18:36:57,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:36:57,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2020-10-23 18:36:57,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 746. [2020-10-23 18:36:57,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-23 18:36:57,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1023 transitions. [2020-10-23 18:36:57,049 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1023 transitions. Word has length 120 [2020-10-23 18:36:57,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:57,050 INFO L481 AbstractCegarLoop]: Abstraction has 746 states and 1023 transitions. [2020-10-23 18:36:57,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:36:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1023 transitions. [2020-10-23 18:36:57,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-23 18:36:57,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:57,057 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:57,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:36:57,272 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:57,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:57,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1079541831, now seen corresponding path program 1 times [2020-10-23 18:36:57,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:57,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280785632] [2020-10-23 18:36:57,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:57,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:57,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:57,719 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:57,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280785632] [2020-10-23 18:36:57,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:36:57,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:36:57,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507370381] [2020-10-23 18:36:57,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:36:57,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:57,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:36:57,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:36:57,723 INFO L87 Difference]: Start difference. First operand 746 states and 1023 transitions. Second operand 8 states. [2020-10-23 18:36:59,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:59,933 INFO L93 Difference]: Finished difference Result 2108 states and 2999 transitions. [2020-10-23 18:36:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:36:59,942 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-10-23 18:36:59,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:59,955 INFO L225 Difference]: With dead ends: 2108 [2020-10-23 18:36:59,956 INFO L226 Difference]: Without dead ends: 1368 [2020-10-23 18:36:59,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:36:59,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-10-23 18:37:00,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1193. [2020-10-23 18:37:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2020-10-23 18:37:00,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1581 transitions. [2020-10-23 18:37:00,045 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1581 transitions. Word has length 163 [2020-10-23 18:37:00,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:00,049 INFO L481 AbstractCegarLoop]: Abstraction has 1193 states and 1581 transitions. [2020-10-23 18:37:00,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:37:00,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1581 transitions. [2020-10-23 18:37:00,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-23 18:37:00,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:00,059 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:37:00,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:37:00,059 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:00,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:00,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1227038450, now seen corresponding path program 1 times [2020-10-23 18:37:00,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:00,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210153560] [2020-10-23 18:37:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:00,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:00,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:00,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-23 18:37:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:37:00,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210153560] [2020-10-23 18:37:00,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798719347] [2020-10-23 18:37:00,524 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 [2020-10-23 18:37:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:00,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:37:00,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:00,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:37:00,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-10-23 18:37:00,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106134095] [2020-10-23 18:37:00,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:37:00,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:00,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:37:00,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:37:00,803 INFO L87 Difference]: Start difference. First operand 1193 states and 1581 transitions. Second operand 11 states. [2020-10-23 18:37:05,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:05,102 INFO L93 Difference]: Finished difference Result 3004 states and 4048 transitions. [2020-10-23 18:37:05,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 18:37:05,103 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2020-10-23 18:37:05,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:05,116 INFO L225 Difference]: With dead ends: 3004 [2020-10-23 18:37:05,116 INFO L226 Difference]: Without dead ends: 1223 [2020-10-23 18:37:05,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2020-10-23 18:37:05,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-10-23 18:37:05,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1046. [2020-10-23 18:37:05,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2020-10-23 18:37:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1305 transitions. [2020-10-23 18:37:05,185 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1305 transitions. Word has length 202 [2020-10-23 18:37:05,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:05,189 INFO L481 AbstractCegarLoop]: Abstraction has 1046 states and 1305 transitions. [2020-10-23 18:37:05,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:37:05,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1305 transitions. [2020-10-23 18:37:05,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-23 18:37:05,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:05,195 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:37:05,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:05,409 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:05,411 INFO L82 PathProgramCache]: Analyzing trace with hash -32580812, now seen corresponding path program 1 times [2020-10-23 18:37:05,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:05,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931105880] [2020-10-23 18:37:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:05,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:05,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:05,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-23 18:37:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:37:05,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931105880] [2020-10-23 18:37:05,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766689212] [2020-10-23 18:37:05,909 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 [2020-10-23 18:37:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:06,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:37:06,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:06,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:37:06,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:37:06,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284471529] [2020-10-23 18:37:06,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:37:06,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:06,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:37:06,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:37:06,333 INFO L87 Difference]: Start difference. First operand 1046 states and 1305 transitions. Second operand 10 states. [2020-10-23 18:37:10,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:10,118 INFO L93 Difference]: Finished difference Result 2986 states and 3766 transitions. [2020-10-23 18:37:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 18:37:10,119 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 209 [2020-10-23 18:37:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:10,135 INFO L225 Difference]: With dead ends: 2986 [2020-10-23 18:37:10,135 INFO L226 Difference]: Without dead ends: 1946 [2020-10-23 18:37:10,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-10-23 18:37:10,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2020-10-23 18:37:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1491. [2020-10-23 18:37:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-23 18:37:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1808 transitions. [2020-10-23 18:37:10,214 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1808 transitions. Word has length 209 [2020-10-23 18:37:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:10,215 INFO L481 AbstractCegarLoop]: Abstraction has 1491 states and 1808 transitions. [2020-10-23 18:37:10,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:37:10,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1808 transitions. [2020-10-23 18:37:10,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 18:37:10,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:10,237 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:37:10,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:10,451 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:10,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:10,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1456651186, now seen corresponding path program 1 times [2020-10-23 18:37:10,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:10,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042660179] [2020-10-23 18:37:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:10,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:10,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:10,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-23 18:37:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 66 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:37:11,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042660179] [2020-10-23 18:37:11,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155518048] [2020-10-23 18:37:11,054 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 [2020-10-23 18:37:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:11,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 18:37:11,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-23 18:37:11,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:37:11,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2020-10-23 18:37:11,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721368955] [2020-10-23 18:37:11,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:37:11,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:11,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:37:11,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:37:11,393 INFO L87 Difference]: Start difference. First operand 1491 states and 1808 transitions. Second operand 5 states. [2020-10-23 18:37:12,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:12,720 INFO L93 Difference]: Finished difference Result 3143 states and 3801 transitions. [2020-10-23 18:37:12,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:37:12,728 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-10-23 18:37:12,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:12,742 INFO L225 Difference]: With dead ends: 3143 [2020-10-23 18:37:12,742 INFO L226 Difference]: Without dead ends: 1658 [2020-10-23 18:37:12,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:37:12,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-10-23 18:37:12,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1640. [2020-10-23 18:37:12,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1640 states. [2020-10-23 18:37:12,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 1969 transitions. [2020-10-23 18:37:12,815 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 1969 transitions. Word has length 216 [2020-10-23 18:37:12,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:12,816 INFO L481 AbstractCegarLoop]: Abstraction has 1640 states and 1969 transitions. [2020-10-23 18:37:12,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:37:12,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 1969 transitions. [2020-10-23 18:37:12,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-23 18:37:12,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:12,830 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:13,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:13,045 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:13,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:13,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1131167893, now seen corresponding path program 1 times [2020-10-23 18:37:13,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:13,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750433373] [2020-10-23 18:37:13,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:13,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:13,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:13,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-23 18:37:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 18:37:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 177 proven. 167 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:37:13,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750433373] [2020-10-23 18:37:13,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577757494] [2020-10-23 18:37:13,753 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 [2020-10-23 18:37:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:13,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-23 18:37:13,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:13,963 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:13,965 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:13,980 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:13,983 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:13,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:14,014 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,038 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,051 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,053 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,058 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:14,067 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:14,071 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,078 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:14,082 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,095 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,115 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,121 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:37:14,128 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:17,095 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2020-10-23 18:37:17,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:17,550 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-23 18:37:17,551 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:17,554 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 315 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-23 18:37:17,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:37:17,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2020-10-23 18:37:17,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185205306] [2020-10-23 18:37:17,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 18:37:17,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:17,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 18:37:17,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:37:17,820 INFO L87 Difference]: Start difference. First operand 1640 states and 1969 transitions. Second operand 15 states. [2020-10-23 18:37:23,126 WARN L193 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2020-10-23 18:37:27,793 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-10-23 18:37:30,508 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-10-23 18:37:37,171 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-23 18:37:41,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:41,708 INFO L93 Difference]: Finished difference Result 4319 states and 5375 transitions. [2020-10-23 18:37:41,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 18:37:41,709 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 331 [2020-10-23 18:37:41,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:41,726 INFO L225 Difference]: With dead ends: 4319 [2020-10-23 18:37:41,726 INFO L226 Difference]: Without dead ends: 2828 [2020-10-23 18:37:41,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=233, Invalid=821, Unknown=2, NotChecked=0, Total=1056 [2020-10-23 18:37:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2020-10-23 18:37:41,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2671. [2020-10-23 18:37:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2671 states. [2020-10-23 18:37:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 3232 transitions. [2020-10-23 18:37:41,854 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 3232 transitions. Word has length 331 [2020-10-23 18:37:41,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:41,855 INFO L481 AbstractCegarLoop]: Abstraction has 2671 states and 3232 transitions. [2020-10-23 18:37:41,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 18:37:41,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 3232 transitions. [2020-10-23 18:37:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-23 18:37:41,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:41,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:42,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:42,095 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:42,096 INFO L82 PathProgramCache]: Analyzing trace with hash 70037201, now seen corresponding path program 1 times [2020-10-23 18:37:42,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:42,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920059621] [2020-10-23 18:37:42,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:42,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:42,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:42,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 18:37:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:42,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-23 18:37:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-23 18:37:42,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920059621] [2020-10-23 18:37:42,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550544405] [2020-10-23 18:37:42,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:42,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-23 18:37:42,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:42,915 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,923 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,926 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,928 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,932 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,935 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:42,940 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:42,944 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,947 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,949 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,952 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:42,953 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:42,955 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-23 18:37:43,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:37:43,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-10-23 18:37:43,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931362436] [2020-10-23 18:37:43,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:37:43,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:43,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:37:43,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:37:43,233 INFO L87 Difference]: Start difference. First operand 2671 states and 3232 transitions. Second operand 3 states. [2020-10-23 18:37:44,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:44,272 INFO L93 Difference]: Finished difference Result 6055 states and 7499 transitions. [2020-10-23 18:37:44,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:37:44,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 350 [2020-10-23 18:37:44,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:44,306 INFO L225 Difference]: With dead ends: 6055 [2020-10-23 18:37:44,306 INFO L226 Difference]: Without dead ends: 3384 [2020-10-23 18:37:44,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 358 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:37:44,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-10-23 18:37:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3384. [2020-10-23 18:37:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3384 states. [2020-10-23 18:37:44,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 4184 transitions. [2020-10-23 18:37:44,434 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 4184 transitions. Word has length 350 [2020-10-23 18:37:44,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:44,434 INFO L481 AbstractCegarLoop]: Abstraction has 3384 states and 4184 transitions. [2020-10-23 18:37:44,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:37:44,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 4184 transitions. [2020-10-23 18:37:44,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-10-23 18:37:44,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:44,447 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:37:44,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:44,662 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:44,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:44,663 INFO L82 PathProgramCache]: Analyzing trace with hash -61234517, now seen corresponding path program 1 times [2020-10-23 18:37:44,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:44,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586448447] [2020-10-23 18:37:44,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:44,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:44,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:44,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-23 18:37:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:44,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-23 18:37:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 293 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-23 18:37:45,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586448447] [2020-10-23 18:37:45,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078544042] [2020-10-23 18:37:45,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:45,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:37:45,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:45,593 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-23 18:37:45,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:37:45,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:37:45,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752923755] [2020-10-23 18:37:45,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:37:45,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:45,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:37:45,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:37:45,606 INFO L87 Difference]: Start difference. First operand 3384 states and 4184 transitions. Second operand 10 states. [2020-10-23 18:37:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:50,593 INFO L93 Difference]: Finished difference Result 6914 states and 8550 transitions. [2020-10-23 18:37:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 18:37:50,597 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 363 [2020-10-23 18:37:50,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:50,599 INFO L225 Difference]: With dead ends: 6914 [2020-10-23 18:37:50,599 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:37:50,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:37:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:37:50,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:37:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:37:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:37:50,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 363 [2020-10-23 18:37:50,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:50,616 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:37:50,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:37:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:37:50,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:37:50,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-23 18:37:50,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:37:51,122 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 166 [2020-10-23 18:37:52,167 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 166 [2020-10-23 18:37:52,401 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 31 [2020-10-23 18:37:53,663 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 157 DAG size of output: 49 [2020-10-23 18:37:55,755 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 224 DAG size of output: 52 [2020-10-23 18:37:56,513 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 39 [2020-10-23 18:37:57,749 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 157 DAG size of output: 49 [2020-10-23 18:37:57,756 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:37:57,756 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:37:57,757 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:37:57,757 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:37:57,757 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:37:57,758 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-23 18:37:57,758 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:37:57,758 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-23 18:37:57,758 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-23 18:37:57,758 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-23 18:37:57,758 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-23 18:37:57,758 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-23 18:37:57,758 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-23 18:37:57,759 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-23 18:37:57,759 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-23 18:37:57,759 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-23 18:37:57,760 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-23 18:37:57,761 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-23 18:37:57,761 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-23 18:37:57,762 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-23 18:37:57,762 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,762 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,762 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,763 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,763 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,764 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,764 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-23 18:37:57,764 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-23 18:37:57,764 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-23 18:37:57,764 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-23 18:37:57,764 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,765 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,766 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,766 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,766 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-23 18:37:57,766 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-23 18:37:57,766 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-23 18:37:57,766 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-23 18:37:57,767 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-23 18:37:57,768 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-23 18:37:57,768 INFO L270 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (let ((.cse5 (not (<= |old(~a1~0)| 206))) (.cse4 (not (<= |old(~a19~0)| 8))) (.cse0 (not (<= 8 |old(~a19~0)|))) (.cse1 (not (<= |old(~a19~0)| 9))) (.cse2 (not (= 14 ~a4~0))) (.cse6 (not (= 0 |old(~a10~0)|))) (.cse3 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 1 |old(~a10~0)|)) .cse3) (or .cse4 .cse5 .cse2 .cse3) (or (not (= |old(~a10~0)| 1)) .cse2 .cse3) (or .cse5 .cse2 .cse6 .cse3) (or .cse4 .cse0 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse6 .cse3))) [2020-10-23 18:37:57,768 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-23 18:37:57,768 INFO L274 CegarLoopResult]: For program point L108-1(line 108) no Hoare annotation was computed. [2020-10-23 18:37:57,769 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-23 18:37:57,769 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-23 18:37:57,769 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-23 18:37:57,770 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-23 18:37:57,770 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-23 18:37:57,770 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-23 18:37:57,770 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,773 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,773 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,773 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,773 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-23 18:37:57,774 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-23 18:37:57,775 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-23 18:37:57,776 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-23 18:37:57,776 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-23 18:37:57,776 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-23 18:37:57,778 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-23 18:37:57,778 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-23 18:37:57,778 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-23 18:37:57,779 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-23 18:37:57,779 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-23 18:37:57,779 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-23 18:37:57,779 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-23 18:37:57,779 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,779 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,779 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,780 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,780 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,780 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-23 18:37:57,781 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-23 18:37:57,782 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-23 18:37:57,783 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-23 18:37:57,783 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-23 18:37:57,784 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,784 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,784 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-23 18:37:57,784 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-23 18:37:57,785 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-23 18:37:57,786 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-23 18:37:57,786 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,786 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,786 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,786 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,786 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,787 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-23 18:37:57,787 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-23 18:37:57,787 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-23 18:37:57,787 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-23 18:37:57,787 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-23 18:37:57,787 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-23 18:37:57,787 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-23 18:37:57,788 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-23 18:37:57,788 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-23 18:37:57,788 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-23 18:37:57,788 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-23 18:37:57,790 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-23 18:37:57,791 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-23 18:37:57,791 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,791 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,791 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,791 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,791 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-23 18:37:57,791 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,792 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,794 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-23 18:37:57,794 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-23 18:37:57,794 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-23 18:37:57,795 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-23 18:37:57,795 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-23 18:37:57,795 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-23 18:37:57,795 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-23 18:37:57,795 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-23 18:37:57,795 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-23 18:37:57,795 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-23 18:37:57,795 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-23 18:37:57,796 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-23 18:37:57,796 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-23 18:37:57,796 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,796 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,796 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,796 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,796 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,796 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,797 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-23 18:37:57,797 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse9 (= ~a10~0 |old(~a10~0)|)) (.cse8 (= ~a1~0 |old(~a1~0)|)) (.cse11 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (not (<= |old(~a1~0)| 206))) (.cse0 (not (<= |old(~a19~0)| 8))) (.cse5 (not (= 0 |old(~a10~0)|))) (.cse6 (and (= ~a10~0 0) .cse8 .cse11)) (.cse2 (and .cse8 .cse11 .cse9)) (.cse7 (not (<= 8 |old(~a19~0)|))) (.cse10 (not (<= |old(~a19~0)| 9))) (.cse3 (not (= 14 ~a4~0))) (.cse4 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse3 .cse5 .cse6 .cse4) (or (not (= |old(~a10~0)| 1)) .cse2 .cse3 .cse4) (or .cse0 .cse7 .cse3 (and (<= 8 ~a19~0) (<= ~a19~0 8) .cse8 .cse9) .cse4) (or .cse7 .cse10 .cse3 .cse5 .cse6 .cse4) (or .cse2 .cse7 .cse10 .cse3 (not (<= 1 |old(~a10~0)|)) .cse4)))) [2020-10-23 18:37:57,797 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-23 18:37:57,797 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-23 18:37:57,797 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-23 18:37:57,797 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-23 18:37:57,798 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-23 18:37:57,798 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-23 18:37:57,798 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-23 18:37:57,798 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-23 18:37:57,798 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-23 18:37:57,798 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-23 18:37:57,798 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-23 18:37:57,798 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-23 18:37:57,799 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-23 18:37:57,800 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-23 18:37:57,801 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-23 18:37:57,802 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-23 18:37:57,803 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-23 18:37:57,803 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,803 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,803 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,803 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,803 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,803 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:57,803 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:37:57,804 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a19~0) (= 14 ~a4~0) (= ~a10~0 0) (= ~a12~0 0) (<= ~a19~0 9) (= 23 ~a1~0)) [2020-10-23 18:37:57,804 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:37:57,804 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:37:57,804 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0))) [2020-10-23 18:37:57,804 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-23 18:37:57,805 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse3 (<= 8 ~a19~0)) (.cse1 (= ~a10~0 0)) (.cse5 (<= ~a19~0 9)) (.cse0 (<= 9 |old(~a19~0)|)) (.cse4 (<= ~a19~0 8)) (.cse2 (<= ~a1~0 206))) (or (and .cse0 .cse1 .cse2) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0)) (and .cse0 .cse3 .cse4) (not (<= 8 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 .cse3 (<= 1 ~a10~0) .cse5) (and .cse0 .cse3 .cse1 .cse5) (and (= ~a10~0 1) .cse0) (and .cse0 .cse4 .cse2))) [2020-10-23 18:37:57,805 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-23 18:37:57,805 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-23 18:37:57,805 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse3 (<= 8 ~a19~0)) (.cse1 (= ~a10~0 0)) (.cse5 (<= ~a19~0 9)) (.cse0 (<= 9 |old(~a19~0)|)) (.cse4 (<= ~a19~0 8)) (.cse2 (<= ~a1~0 206))) (or (and .cse0 .cse1 .cse2) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0)) (and .cse0 .cse3 .cse4) (not (<= 8 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 .cse3 (<= 1 ~a10~0) .cse5) (and .cse0 .cse3 .cse1 .cse5) (and (= ~a10~0 1) .cse0) (and .cse0 .cse4 .cse2))) [2020-10-23 18:37:57,805 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-23 18:37:57,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:37:57 BoogieIcfgContainer [2020-10-23 18:37:57,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:37:57,870 INFO L168 Benchmark]: Toolchain (without parser) took 70717.60 ms. Allocated memory was 151.0 MB in the beginning and 418.4 MB in the end (delta: 267.4 MB). Free memory was 123.2 MB in the beginning and 179.9 MB in the end (delta: -56.7 MB). Peak memory consumption was 246.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:57,871 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:37:57,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.69 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 96.0 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:57,872 INFO L168 Benchmark]: Boogie Preprocessor took 121.05 ms. Allocated memory is still 151.0 MB. Free memory was 96.0 MB in the beginning and 91.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:57,872 INFO L168 Benchmark]: RCFGBuilder took 1589.26 ms. Allocated memory is still 151.0 MB. Free memory was 91.2 MB in the beginning and 68.0 MB in the end (delta: 23.3 MB). Peak memory consumption was 45.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:57,873 INFO L168 Benchmark]: TraceAbstraction took 68229.40 ms. Allocated memory was 151.0 MB in the beginning and 418.4 MB in the end (delta: 267.4 MB). Free memory was 67.4 MB in the beginning and 179.9 MB in the end (delta: -112.5 MB). Peak memory consumption was 189.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:57,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 763.69 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 96.0 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 121.05 ms. Allocated memory is still 151.0 MB. Free memory was 96.0 MB in the beginning and 91.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1589.26 ms. Allocated memory is still 151.0 MB. Free memory was 91.2 MB in the beginning and 68.0 MB in the end (delta: 23.3 MB). Peak memory consumption was 45.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 68229.40 ms. Allocated memory was 151.0 MB in the beginning and 418.4 MB in the end (delta: 267.4 MB). Free memory was 67.4 MB in the beginning and 179.9 MB in the end (delta: -112.5 MB). Peak memory consumption was 189.0 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: 584]: Loop Invariant Derived loop invariant: (((((((((((((9 <= \old(a19) && a10 == 0) && a1 <= 206) || ((a1 == \old(a1) && a19 == \old(a19)) && a10 == \old(a10))) || !(0 == \old(a10))) || !(23 == \old(a1))) || !(a12 == 0)) || ((9 <= \old(a19) && 8 <= a19) && a19 <= 8)) || !(8 <= \old(a19))) || !(14 == a4)) || !(\old(a19) <= 9)) || (((9 <= \old(a19) && 8 <= a19) && 1 <= a10) && a19 <= 9)) || (((9 <= \old(a19) && 8 <= a19) && a10 == 0) && a19 <= 9)) || (a10 == 1 && 9 <= \old(a19))) || ((9 <= \old(a19) && a19 <= 8) && a1 <= 206) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 61.1s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 47.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 5014 SDslu, 465 SDs, 0 SdLazy, 12087 SolverSat, 1976 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 25.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1995 GetRequests, 1856 SyntacticMatches, 2 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 18.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3384occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 1294 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 240 PreInvPairs, 300 NumberOfFragments, 593 HoareAnnotationTreeSize, 240 FomulaSimplifications, 191742 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14540 FormulaSimplificationTreeSizeReductionInter, 5.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 3901 NumberOfCodeBlocks, 3901 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3884 ConstructedInterpolants, 6 QuantifiedInterpolants, 2516512 SizeOfPredicates, 6 NumberOfNonLiveVariables, 3553 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 2893/3152 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...