/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/Problem02_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:37:22,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:37:22,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:37:22,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:37:22,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:37:22,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:37:22,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:37:22,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:37:22,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:37:22,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:37:22,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:37:22,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:37:22,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:37:22,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:37:22,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:37:22,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:37:22,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 22:37:22,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:37:22,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:37:22,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:37:22,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:37:22,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:37:22,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:37:22,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:37:22,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:37:22,793 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:37:22,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:37:22,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:37:22,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:37:22,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:37:22,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:37:22,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:37:22,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:37:22,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:37:22,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:37:22,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:37:22,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:37:22,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:37:22,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:37:22,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:37:22,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:37:22,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:37:22,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:37:22,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:37:22,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:37:22,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:37:22,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:37:22,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:37:22,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:37:22,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:37:22,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:37:23,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:37:23,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:37:23,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:37:23,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:37:23,225 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:37:23,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-11-06 22:37:23,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2e66e55/a828b679b8f047cf8b971974bc7535db/FLAG3eab0f3cc [2020-11-06 22:37:24,128 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:37:24,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-11-06 22:37:24,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2e66e55/a828b679b8f047cf8b971974bc7535db/FLAG3eab0f3cc [2020-11-06 22:37:24,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2e66e55/a828b679b8f047cf8b971974bc7535db [2020-11-06 22:37:24,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:37:24,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:37:24,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:37:24,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:37:24,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:37:24,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:37:24" (1/1) ... [2020-11-06 22:37:24,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267332cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:24, skipping insertion in model container [2020-11-06 22:37:24,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:37:24" (1/1) ... [2020-11-06 22:37:24,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:37:24,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:37:24,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:37:24,958 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:37:25,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:37:25,189 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:37:25,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25 WrapperNode [2020-11-06 22:37:25,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:37:25,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:37:25,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:37:25,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:37:25,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (1/1) ... [2020-11-06 22:37:25,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (1/1) ... [2020-11-06 22:37:25,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (1/1) ... [2020-11-06 22:37:25,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (1/1) ... [2020-11-06 22:37:25,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (1/1) ... [2020-11-06 22:37:25,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (1/1) ... [2020-11-06 22:37:25,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (1/1) ... [2020-11-06 22:37:25,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:37:25,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:37:25,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:37:25,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:37:25,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:37:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:37:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:37:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:37:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:37:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:37:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:37:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:37:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:37:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:37:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:37:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:37:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:37:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:37:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:37:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:37:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:37:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:37:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:37:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:37:27,407 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:37:27,408 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:37:27,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:37:27 BoogieIcfgContainer [2020-11-06 22:37:27,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:37:27,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:37:27,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:37:27,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:37:27,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:37:24" (1/3) ... [2020-11-06 22:37:27,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78999c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:37:27, skipping insertion in model container [2020-11-06 22:37:27,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:25" (2/3) ... [2020-11-06 22:37:27,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78999c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:37:27, skipping insertion in model container [2020-11-06 22:37:27,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:37:27" (3/3) ... [2020-11-06 22:37:27,426 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-11-06 22:37:27,443 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:37:27,449 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:37:27,462 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:37:27,500 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:37:27,500 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:37:27,500 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:37:27,500 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:37:27,501 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:37:27,501 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:37:27,501 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:37:27,501 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:37:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-11-06 22:37:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-06 22:37:27,548 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:27,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:37:27,551 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:27,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:27,567 INFO L82 PathProgramCache]: Analyzing trace with hash -661183459, now seen corresponding path program 1 times [2020-11-06 22:37:27,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:27,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962996051] [2020-11-06 22:37:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:28,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:37:28,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962996051] [2020-11-06 22:37:28,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:37:28,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 22:37:28,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842245612] [2020-11-06 22:37:28,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:37:28,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:28,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:37:28,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:37:28,359 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-11-06 22:37:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:30,567 INFO L93 Difference]: Finished difference Result 654 states and 1108 transitions. [2020-11-06 22:37:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:37:30,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2020-11-06 22:37:30,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:30,592 INFO L225 Difference]: With dead ends: 654 [2020-11-06 22:37:30,592 INFO L226 Difference]: Without dead ends: 340 [2020-11-06 22:37:30,602 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 [2020-11-06 22:37:30,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-11-06 22:37:30,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 329. [2020-11-06 22:37:30,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-11-06 22:37:30,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 472 transitions. [2020-11-06 22:37:30,737 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 472 transitions. Word has length 107 [2020-11-06 22:37:30,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:30,739 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 472 transitions. [2020-11-06 22:37:30,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:37:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 472 transitions. [2020-11-06 22:37:30,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-11-06 22:37:30,746 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:30,747 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-11-06 22:37:30,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:37:30,748 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:30,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:30,749 INFO L82 PathProgramCache]: Analyzing trace with hash -211620175, now seen corresponding path program 1 times [2020-11-06 22:37:30,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:30,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080545970] [2020-11-06 22:37:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:31,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:31,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:37:31,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080545970] [2020-11-06 22:37:31,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:37:31,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:37:31,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129869274] [2020-11-06 22:37:31,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:37:31,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:31,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:37:31,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:37:31,201 INFO L87 Difference]: Start difference. First operand 329 states and 472 transitions. Second operand 8 states. [2020-11-06 22:37:31,752 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-06 22:37:34,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:34,898 INFO L93 Difference]: Finished difference Result 1270 states and 1899 transitions. [2020-11-06 22:37:34,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 22:37:34,899 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-11-06 22:37:34,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:34,918 INFO L225 Difference]: With dead ends: 1270 [2020-11-06 22:37:34,919 INFO L226 Difference]: Without dead ends: 947 [2020-11-06 22:37:34,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:37:34,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-11-06 22:37:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 928. [2020-11-06 22:37:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-11-06 22:37:35,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1251 transitions. [2020-11-06 22:37:35,017 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1251 transitions. Word has length 119 [2020-11-06 22:37:35,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:35,018 INFO L481 AbstractCegarLoop]: Abstraction has 928 states and 1251 transitions. [2020-11-06 22:37:35,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:37:35,018 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1251 transitions. [2020-11-06 22:37:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-06 22:37:35,025 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:35,026 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-11-06 22:37:35,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:37:35,026 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:35,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1463037338, now seen corresponding path program 1 times [2020-11-06 22:37:35,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:35,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951688440] [2020-11-06 22:37:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:35,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:35,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:35,370 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:37:35,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951688440] [2020-11-06 22:37:35,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787579290] [2020-11-06 22:37:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:35,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-06 22:37:35,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:37:35,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-06 22:37:35,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:37:35,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2020-11-06 22:37:35,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616078505] [2020-11-06 22:37:35,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 22:37:35,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:35,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 22:37:35,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:37:35,958 INFO L87 Difference]: Start difference. First operand 928 states and 1251 transitions. Second operand 7 states. [2020-11-06 22:37:36,102 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-06 22:37:36,592 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-06 22:37:40,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:40,281 INFO L93 Difference]: Finished difference Result 3708 states and 5429 transitions. [2020-11-06 22:37:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:37:40,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2020-11-06 22:37:40,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:40,312 INFO L225 Difference]: With dead ends: 3708 [2020-11-06 22:37:40,313 INFO L226 Difference]: Without dead ends: 2786 [2020-11-06 22:37:40,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-11-06 22:37:40,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2020-11-06 22:37:40,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2591. [2020-11-06 22:37:40,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2591 states. [2020-11-06 22:37:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3440 transitions. [2020-11-06 22:37:40,472 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3440 transitions. Word has length 120 [2020-11-06 22:37:40,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:40,473 INFO L481 AbstractCegarLoop]: Abstraction has 2591 states and 3440 transitions. [2020-11-06 22:37:40,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 22:37:40,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3440 transitions. [2020-11-06 22:37:40,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-11-06 22:37:40,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:40,485 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-11-06 22:37:40,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:37:40,701 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:40,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:40,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1485822054, now seen corresponding path program 1 times [2020-11-06 22:37:40,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:40,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334746233] [2020-11-06 22:37:40,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:40,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:40,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:40,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-06 22:37:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:37:41,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334746233] [2020-11-06 22:37:41,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981954347] [2020-11-06 22:37:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:41,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:37:41,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:37:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-06 22:37:41,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:37:41,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-11-06 22:37:41,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553922898] [2020-11-06 22:37:41,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:37:41,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:41,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:37:41,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:37:41,239 INFO L87 Difference]: Start difference. First operand 2591 states and 3440 transitions. Second operand 3 states. [2020-11-06 22:37:42,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:42,236 INFO L93 Difference]: Finished difference Result 5908 states and 8015 transitions. [2020-11-06 22:37:42,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:37:42,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-11-06 22:37:42,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:42,265 INFO L225 Difference]: With dead ends: 5908 [2020-11-06 22:37:42,266 INFO L226 Difference]: Without dead ends: 3323 [2020-11-06 22:37:42,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:37:42,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states. [2020-11-06 22:37:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3323. [2020-11-06 22:37:42,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3323 states. [2020-11-06 22:37:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 4050 transitions. [2020-11-06 22:37:42,440 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 4050 transitions. Word has length 130 [2020-11-06 22:37:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:42,443 INFO L481 AbstractCegarLoop]: Abstraction has 3323 states and 4050 transitions. [2020-11-06 22:37:42,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:37:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 4050 transitions. [2020-11-06 22:37:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-11-06 22:37:42,454 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:42,455 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-06 22:37:42,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:42,669 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:42,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:42,670 INFO L82 PathProgramCache]: Analyzing trace with hash 122695612, now seen corresponding path program 1 times [2020-11-06 22:37:42,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:42,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864580745] [2020-11-06 22:37:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:42,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:42,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:42,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-06 22:37:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:43,079 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:37:43,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864580745] [2020-11-06 22:37:43,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589160527] [2020-11-06 22:37:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:43,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-06 22:37:43,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:37:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-06 22:37:43,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:37:43,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2020-11-06 22:37:43,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416497836] [2020-11-06 22:37:43,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:37:43,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:43,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:37:43,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:37:43,310 INFO L87 Difference]: Start difference. First operand 3323 states and 4050 transitions. Second operand 5 states. [2020-11-06 22:37:44,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:44,569 INFO L93 Difference]: Finished difference Result 8365 states and 10729 transitions. [2020-11-06 22:37:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:37:44,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-11-06 22:37:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:44,611 INFO L225 Difference]: With dead ends: 8365 [2020-11-06 22:37:44,612 INFO L226 Difference]: Without dead ends: 4894 [2020-11-06 22:37:44,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:37:44,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2020-11-06 22:37:44,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4806. [2020-11-06 22:37:44,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4806 states. [2020-11-06 22:37:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 5719 transitions. [2020-11-06 22:37:44,842 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 5719 transitions. Word has length 142 [2020-11-06 22:37:44,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:44,843 INFO L481 AbstractCegarLoop]: Abstraction has 4806 states and 5719 transitions. [2020-11-06 22:37:44,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:37:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 5719 transitions. [2020-11-06 22:37:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-11-06 22:37:44,859 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:44,859 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:37:45,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:45,076 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash -981536840, now seen corresponding path program 1 times [2020-11-06 22:37:45,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:45,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210104841] [2020-11-06 22:37:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:45,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:45,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:45,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-06 22:37:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:45,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-11-06 22:37:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 57 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-06 22:37:45,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210104841] [2020-11-06 22:37:45,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609892480] [2020-11-06 22:37:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:45,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:37:45,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:37:45,636 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-06 22:37:45,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:37:45,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-11-06 22:37:45,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650064727] [2020-11-06 22:37:45,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:37:45,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:45,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:37:45,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:37:45,639 INFO L87 Difference]: Start difference. First operand 4806 states and 5719 transitions. Second operand 10 states. [2020-11-06 22:37:47,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:47,748 INFO L93 Difference]: Finished difference Result 9492 states and 11327 transitions. [2020-11-06 22:37:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:37:47,748 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-11-06 22:37:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:47,781 INFO L225 Difference]: With dead ends: 9492 [2020-11-06 22:37:47,782 INFO L226 Difference]: Without dead ends: 3781 [2020-11-06 22:37:47,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:37:47,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3781 states. [2020-11-06 22:37:47,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3781 to 3769. [2020-11-06 22:37:47,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3769 states. [2020-11-06 22:37:47,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 4292 transitions. [2020-11-06 22:37:47,972 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 4292 transitions. Word has length 165 [2020-11-06 22:37:47,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:47,973 INFO L481 AbstractCegarLoop]: Abstraction has 3769 states and 4292 transitions. [2020-11-06 22:37:47,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:37:47,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 4292 transitions. [2020-11-06 22:37:47,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-06 22:37:47,985 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:47,986 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:37:48,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:48,201 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:48,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:48,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1794508454, now seen corresponding path program 1 times [2020-11-06 22:37:48,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:48,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77440565] [2020-11-06 22:37:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:48,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:48,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:48,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-11-06 22:37:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:48,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-11-06 22:37:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:48,699 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 87 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-06 22:37:48,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77440565] [2020-11-06 22:37:48,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914681142] [2020-11-06 22:37:48,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:48,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:37:48,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:37:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:37:49,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:37:49,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-11-06 22:37:49,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117583736] [2020-11-06 22:37:49,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:37:49,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:49,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:37:49,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:37:49,018 INFO L87 Difference]: Start difference. First operand 3769 states and 4292 transitions. Second operand 11 states. [2020-11-06 22:37:51,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:51,165 INFO L93 Difference]: Finished difference Result 7081 states and 8221 transitions. [2020-11-06 22:37:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:37:51,166 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2020-11-06 22:37:51,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:51,192 INFO L225 Difference]: With dead ends: 7081 [2020-11-06 22:37:51,193 INFO L226 Difference]: Without dead ends: 3012 [2020-11-06 22:37:51,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-11-06 22:37:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2020-11-06 22:37:51,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2832. [2020-11-06 22:37:51,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2832 states. [2020-11-06 22:37:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3086 transitions. [2020-11-06 22:37:51,343 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3086 transitions. Word has length 178 [2020-11-06 22:37:51,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:51,344 INFO L481 AbstractCegarLoop]: Abstraction has 2832 states and 3086 transitions. [2020-11-06 22:37:51,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:37:51,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3086 transitions. [2020-11-06 22:37:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-11-06 22:37:51,359 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:51,359 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-11-06 22:37:51,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-06 22:37:51,574 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:51,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:51,575 INFO L82 PathProgramCache]: Analyzing trace with hash -270449495, now seen corresponding path program 1 times [2020-11-06 22:37:51,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:51,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124040903] [2020-11-06 22:37:51,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:51,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:51,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:37:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:52,262 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 74 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-06 22:37:52,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124040903] [2020-11-06 22:37:52,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187332428] [2020-11-06 22:37:52,264 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 [2020-11-06 22:37:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:52,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:37:52,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:37:52,498 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-06 22:37:52,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:37:52,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:37:52,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813059532] [2020-11-06 22:37:52,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:37:52,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:52,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:37:52,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:37:52,501 INFO L87 Difference]: Start difference. First operand 2832 states and 3086 transitions. Second operand 3 states. [2020-11-06 22:37:53,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:53,173 INFO L93 Difference]: Finished difference Result 6096 states and 6727 transitions. [2020-11-06 22:37:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:37:53,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-11-06 22:37:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:53,197 INFO L225 Difference]: With dead ends: 6096 [2020-11-06 22:37:53,197 INFO L226 Difference]: Without dead ends: 3414 [2020-11-06 22:37:53,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:37:53,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2020-11-06 22:37:53,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3268. [2020-11-06 22:37:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3268 states. [2020-11-06 22:37:53,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 3557 transitions. [2020-11-06 22:37:53,331 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 3557 transitions. Word has length 189 [2020-11-06 22:37:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:53,332 INFO L481 AbstractCegarLoop]: Abstraction has 3268 states and 3557 transitions. [2020-11-06 22:37:53,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:37:53,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 3557 transitions. [2020-11-06 22:37:53,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-11-06 22:37:53,343 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:53,344 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:37:53,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:53,557 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:53,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:53,558 INFO L82 PathProgramCache]: Analyzing trace with hash -962352344, now seen corresponding path program 1 times [2020-11-06 22:37:53,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:53,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808048681] [2020-11-06 22:37:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:53,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:53,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:53,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:37:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:53,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-11-06 22:37:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:53,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-11-06 22:37:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 133 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-06 22:37:53,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808048681] [2020-11-06 22:37:53,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912572561] [2020-11-06 22:37:53,999 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 [2020-11-06 22:37:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:54,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:37:54,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:37:54,267 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-11-06 22:37:54,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:37:54,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-11-06 22:37:54,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970554524] [2020-11-06 22:37:54,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:37:54,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:54,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:37:54,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:37:54,271 INFO L87 Difference]: Start difference. First operand 3268 states and 3557 transitions. Second operand 11 states. [2020-11-06 22:37:54,757 WARN L194 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-11-06 22:37:55,731 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-11-06 22:37:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:57,958 INFO L93 Difference]: Finished difference Result 4916 states and 5350 transitions. [2020-11-06 22:37:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-06 22:37:57,959 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2020-11-06 22:37:57,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:57,977 INFO L225 Difference]: With dead ends: 4916 [2020-11-06 22:37:57,978 INFO L226 Difference]: Without dead ends: 2980 [2020-11-06 22:37:57,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-11-06 22:37:57,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2020-11-06 22:37:58,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 2974. [2020-11-06 22:37:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2974 states. [2020-11-06 22:37:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3207 transitions. [2020-11-06 22:37:58,098 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3207 transitions. Word has length 217 [2020-11-06 22:37:58,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:58,099 INFO L481 AbstractCegarLoop]: Abstraction has 2974 states and 3207 transitions. [2020-11-06 22:37:58,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:37:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3207 transitions. [2020-11-06 22:37:58,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-11-06 22:37:58,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:37:58,109 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:37:58,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:58,324 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:37:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:37:58,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1469458123, now seen corresponding path program 1 times [2020-11-06 22:37:58,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:37:58,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855231287] [2020-11-06 22:37:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:37:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:58,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:37:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:58,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:37:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:58,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-11-06 22:37:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:58,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-11-06 22:37:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:58,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-11-06 22:37:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:58,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-06 22:37:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:58,687 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 138 proven. 8 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-11-06 22:37:58,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855231287] [2020-11-06 22:37:58,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725830942] [2020-11-06 22:37:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:37:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:37:58,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-06 22:37:58,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:37:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-11-06 22:37:58,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:37:58,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-11-06 22:37:58,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918914708] [2020-11-06 22:37:58,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:37:58,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:37:58,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:37:58,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:37:58,963 INFO L87 Difference]: Start difference. First operand 2974 states and 3207 transitions. Second operand 3 states. [2020-11-06 22:37:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:37:59,489 INFO L93 Difference]: Finished difference Result 4746 states and 5114 transitions. [2020-11-06 22:37:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:37:59,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-11-06 22:37:59,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:37:59,490 INFO L225 Difference]: With dead ends: 4746 [2020-11-06 22:37:59,490 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:37:59,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:37:59,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:37:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:37:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:37:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:37:59,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2020-11-06 22:37:59,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:37:59,500 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:37:59,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:37:59,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:37:59,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:37:59,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-06 22:37:59,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:38:00,550 WARN L194 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 163 [2020-11-06 22:38:00,778 WARN L194 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 163 [2020-11-06 22:38:01,064 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 31 [2020-11-06 22:38:03,003 WARN L194 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 185 DAG size of output: 75 [2020-11-06 22:38:03,637 WARN L194 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 57 [2020-11-06 22:38:04,255 WARN L194 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 57 [2020-11-06 22:38:04,663 WARN L194 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2020-11-06 22:38:04,668 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:38:04,669 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:38:04,669 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:38:04,669 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:38:04,670 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:38:04,670 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-11-06 22:38:04,670 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:38:04,670 INFO L266 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-06 22:38:04,670 INFO L266 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-06 22:38:04,670 INFO L266 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-11-06 22:38:04,671 INFO L266 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-06 22:38:04,672 INFO L266 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-06 22:38:04,673 INFO L266 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-06 22:38:04,673 INFO L266 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-06 22:38:04,673 INFO L266 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-06 22:38:04,673 INFO L266 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-11-06 22:38:04,673 INFO L266 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-11-06 22:38:04,673 INFO L266 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-11-06 22:38:04,673 INFO L266 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-11-06 22:38:04,673 INFO L266 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-06 22:38:04,674 INFO L266 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-11-06 22:38:04,675 INFO L266 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-11-06 22:38:04,676 INFO L266 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-11-06 22:38:04,677 INFO L266 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-06 22:38:04,677 INFO L266 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-06 22:38:04,677 INFO L266 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-06 22:38:04,677 INFO L262 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: (let ((.cse5 (not (<= |old(~a17~0)| 7))) (.cse0 (not (= |old(~a25~0)| 1))) (.cse3 (= |old(~a11~0)| 1)) (.cse6 (not (<= 10 |old(~a28~0)|))) (.cse7 (not (<= |old(~a28~0)| 7))) (.cse4 (not (<= |old(~a28~0)| 10))) (.cse1 (not (= |old(~a19~0)| 1))) (.cse2 (not (= 8 |old(~a17~0)|))) (.cse8 (not (<= 9 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse1 (not (<= |old(~a11~0)| 0))) (or .cse4 (= 10 |old(~a28~0)|) .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse8 (not (= |old(~a11~0)| |old(~a25~0)|))) (or (not (<= |old(~a17~0)| 8)) .cse7 .cse0 .cse1) (or .cse0 .cse4 .cse2 .cse3) (or .cse4 .cse1 .cse6) (or .cse7 .cse2) (or .cse4 .cse1 .cse2 .cse8))) [2020-11-06 22:38:04,677 INFO L266 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-06 22:38:04,677 INFO L266 CegarLoopResult]: For program point L474-1(line 474) no Hoare annotation was computed. [2020-11-06 22:38:04,677 INFO L266 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-11-06 22:38:04,678 INFO L266 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-11-06 22:38:04,679 INFO L266 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-06 22:38:04,680 INFO L266 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-06 22:38:04,681 INFO L266 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-06 22:38:04,681 INFO L266 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-11-06 22:38:04,681 INFO L266 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-11-06 22:38:04,681 INFO L266 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-11-06 22:38:04,681 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,684 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,685 INFO L266 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-06 22:38:04,686 INFO L266 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-06 22:38:04,687 INFO L266 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-06 22:38:04,687 INFO L266 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-06 22:38:04,687 INFO L266 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-11-06 22:38:04,687 INFO L266 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-11-06 22:38:04,688 INFO L266 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-11-06 22:38:04,688 INFO L266 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-11-06 22:38:04,688 INFO L266 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-11-06 22:38:04,688 INFO L266 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,688 INFO L266 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,689 INFO L266 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,689 INFO L266 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,689 INFO L266 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,689 INFO L266 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,689 INFO L266 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-11-06 22:38:04,689 INFO L266 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-11-06 22:38:04,689 INFO L266 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-06 22:38:04,690 INFO L266 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-06 22:38:04,690 INFO L266 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-06 22:38:04,690 INFO L266 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-06 22:38:04,691 INFO L266 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-06 22:38:04,691 INFO L266 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-11-06 22:38:04,691 INFO L266 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-11-06 22:38:04,691 INFO L266 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-11-06 22:38:04,691 INFO L266 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-11-06 22:38:04,692 INFO L266 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,692 INFO L266 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,692 INFO L266 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,692 INFO L266 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,693 INFO L266 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,693 INFO L266 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,693 INFO L266 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-11-06 22:38:04,693 INFO L266 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-11-06 22:38:04,693 INFO L266 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-11-06 22:38:04,693 INFO L266 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-11-06 22:38:04,694 INFO L266 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-06 22:38:04,694 INFO L266 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-06 22:38:04,694 INFO L266 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-06 22:38:04,694 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse19 (= ~a25~0 |old(~a25~0)|)) (.cse2 (= ~a17~0 8)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse23 (= ~a28~0 |old(~a28~0)|)) (.cse22 (= ~a17~0 |old(~a17~0)|)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse17 (= ~a19~0 1)) (.cse3 (= ~a25~0 1))) (let ((.cse13 (and .cse23 .cse22 .cse0 .cse17 .cse3)) (.cse14 (= 10 |old(~a28~0)|)) (.cse21 (not (<= |old(~a17~0)| 7))) (.cse16 (<= 9 ~a28~0)) (.cse18 (not (= ~a28~0 10))) (.cse20 (not (<= 9 |old(~a28~0)|))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse15 (and .cse23 .cse0 .cse19 .cse2 .cse5)) (.cse7 (not (<= |old(~a28~0)| 10))) (.cse10 (not (<= 10 |old(~a28~0)|))) (.cse1 (<= 10 ~a28~0)) (.cse4 (<= ~a28~0 10)) (.cse6 (not (= |old(~a25~0)| 1))) (.cse12 (not (= |old(~a19~0)| 1))) (.cse8 (not (= 8 |old(~a17~0)|))) (.cse9 (= |old(~a11~0)| 1))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10) (or .cse11 .cse6 .cse12 (not (<= |old(~a11~0)| 0)) .cse13) (or .cse7 .cse14 .cse15 .cse8 .cse9) (or .cse7 .cse12 .cse14 .cse8 (and .cse0 .cse16 .cse17 .cse18 .cse19 .cse2 .cse4) .cse20) (or .cse7 .cse21 (and .cse22 .cse0 .cse1 .cse19 .cse4 .cse5) .cse10) (or (not (<= |old(~a17~0)| 8)) .cse11 .cse6 .cse12 .cse13) (or .cse6 .cse7 .cse14 .cse21 (and (= ~a25~0 ~a11~0) .cse22 .cse16 .cse18 .cse3 .cse4 .cse5) .cse20 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse11 .cse15 .cse8) (or .cse7 .cse12 .cse10 (and .cse22 .cse0 .cse1 .cse17 .cse19 .cse4)) (or .cse6 .cse12 (and .cse23 .cse0 .cse17 .cse2 .cse3) .cse8 .cse9)))) [2020-11-06 22:38:04,694 INFO L266 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,695 INFO L266 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-11-06 22:38:04,696 INFO L266 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-06 22:38:04,697 INFO L266 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-11-06 22:38:04,698 INFO L266 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-11-06 22:38:04,699 INFO L266 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-11-06 22:38:04,699 INFO L266 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-11-06 22:38:04,699 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:38:04,699 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (<= ~a11~0 0) (= ~a19~0 1) (= ~a17~0 8) (<= ~a28~0 7)) [2020-11-06 22:38:04,699 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:38:04,699 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:38:04,699 INFO L262 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (<= 10 ~a28~0)) (.cse8 (<= 9 ~a28~0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= ~a17~0 8)) (.cse5 (not (= ~a11~0 1))) (.cse2 (<= ~a28~0 10)) (.cse3 (= ~a19~0 1)) (.cse6 (= ~a25~0 1)) (.cse7 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse2) (and (not (= ~a28~0 10)) .cse4 .cse5 .cse2) (not (= |old(~a19~0)| 1)) (and .cse3 .cse6 .cse7 (<= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse8 .cse3 (<= ~a17~0 |old(~a17~0)|) (<= 8 ~a17~0) .cse2) (and (= ~a25~0 ~a11~0) .cse8 .cse6 .cse1 .cse2) (and .cse3 .cse4 .cse6 .cse5) (and .cse4 .cse7) (and .cse4 .cse6 .cse5 .cse2) (and (<= ~a11~0 0) .cse3 .cse6 .cse7) (not (<= |old(~a11~0)| 0)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-11-06 22:38:04,699 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a11~0)| 0)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-11-06 22:38:04,699 INFO L266 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-11-06 22:38:04,699 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-11-06 22:38:04,700 INFO L262 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse0 (<= 10 ~a28~0)) (.cse8 (<= 9 ~a28~0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= ~a17~0 8)) (.cse5 (not (= ~a11~0 1))) (.cse2 (<= ~a28~0 10)) (.cse3 (= ~a19~0 1)) (.cse6 (= ~a25~0 1)) (.cse7 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse2) (and (not (= ~a28~0 10)) .cse4 .cse5 .cse2) (not (= |old(~a19~0)| 1)) (and .cse3 .cse6 .cse7 (<= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse8 .cse3 (<= ~a17~0 |old(~a17~0)|) (<= 8 ~a17~0) .cse2) (and (= ~a25~0 ~a11~0) .cse8 .cse6 .cse1 .cse2) (and .cse3 .cse4 .cse6 .cse5) (and .cse4 .cse7) (and .cse4 .cse6 .cse5 .cse2) (and (<= ~a11~0 0) .cse3 .cse6 .cse7) (not (<= |old(~a11~0)| 0)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-11-06 22:38:04,700 INFO L266 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-11-06 22:38:04,700 INFO L266 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-11-06 22:38:04,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:38:04 BoogieIcfgContainer [2020-11-06 22:38:04,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:38:04,734 INFO L168 Benchmark]: Toolchain (without parser) took 40390.24 ms. Allocated memory was 155.2 MB in the beginning and 570.4 MB in the end (delta: 415.2 MB). Free memory was 128.9 MB in the beginning and 422.0 MB in the end (delta: -293.2 MB). Peak memory consumption was 344.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:04,735 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 155.2 MB. Free memory is still 127.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:38:04,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 837.35 ms. Allocated memory is still 155.2 MB. Free memory was 128.0 MB in the beginning and 135.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:04,736 INFO L168 Benchmark]: Boogie Preprocessor took 169.96 ms. Allocated memory is still 155.2 MB. Free memory was 135.6 MB in the beginning and 130.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:04,737 INFO L168 Benchmark]: RCFGBuilder took 2045.45 ms. Allocated memory was 155.2 MB in the beginning and 198.2 MB in the end (delta: 43.0 MB). Free memory was 130.8 MB in the beginning and 154.5 MB in the end (delta: -23.7 MB). Peak memory consumption was 83.8 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:04,738 INFO L168 Benchmark]: TraceAbstraction took 37316.23 ms. Allocated memory was 198.2 MB in the beginning and 570.4 MB in the end (delta: 372.2 MB). Free memory was 154.0 MB in the beginning and 422.0 MB in the end (delta: -268.0 MB). Peak memory consumption was 325.4 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:04,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 155.2 MB. Free memory is still 127.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 837.35 ms. Allocated memory is still 155.2 MB. Free memory was 128.0 MB in the beginning and 135.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.96 ms. Allocated memory is still 155.2 MB. Free memory was 135.6 MB in the beginning and 130.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2045.45 ms. Allocated memory was 155.2 MB in the beginning and 198.2 MB in the end (delta: 43.0 MB). Free memory was 130.8 MB in the beginning and 154.5 MB in the end (delta: -23.7 MB). Peak memory consumption was 83.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37316.23 ms. Allocated memory was 198.2 MB in the beginning and 570.4 MB in the end (delta: 372.2 MB). Free memory was 154.0 MB in the beginning and 422.0 MB in the end (delta: -268.0 MB). Peak memory consumption was 325.4 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: 608]: Loop Invariant Derived loop invariant: (((((((((((((((10 <= a28 && a17 <= 7) && a28 <= 10) || ((a19 == 1 && 10 <= a28) && a28 <= 10)) || (((!(a28 == 10) && a17 == 8) && !(a11 == 1)) && a28 <= 10)) || !(\old(a19) == 1)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || !(8 == \old(a17))) || !(\old(a28) <= 7)) || ((((9 <= a28 && a19 == 1) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10)) || ((((a25 == a11 && 9 <= a28) && a25 == 1) && a17 <= 7) && a28 <= 10)) || (((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1))) || (a17 == 8 && a28 <= 7)) || (((a17 == 8 && a25 == 1) && !(a11 == 1)) && a28 <= 10)) || (((a11 <= 0 && a19 == 1) && a25 == 1) && a28 <= 7)) || !(\old(a11) <= 0)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.2s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 22.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 712 SDtfs, 6468 SDslu, 520 SDs, 0 SdLazy, 8575 SolverSat, 1593 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1542 GetRequests, 1447 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4806occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 657 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 374 PreInvPairs, 446 NumberOfFragments, 938 HoareAnnotationTreeSize, 374 FomulaSimplifications, 25785 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6603 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 2974 NumberOfCodeBlocks, 2974 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2956 ConstructedInterpolants, 0 QuantifiedInterpolants, 1316669 SizeOfPredicates, 9 NumberOfNonLiveVariables, 4179 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 1544/1633 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...