/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:37:13,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:37:13,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:37:13,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:37:13,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:37:13,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:37:13,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:37:13,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:37:13,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:37:13,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:37:13,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:37:13,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:37:13,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:37:13,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:37:13,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:37:13,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:37:13,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:37:13,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:37:13,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:37:13,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:37:13,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:37:13,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:37:13,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:37:13,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:37:13,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:37:13,434 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:37:13,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:37:13,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:37:13,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:37:13,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:37:13,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:37:13,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:37:13,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:37:13,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:37:13,436 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:37:13,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:37:13,436 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:37:13,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:37:13,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:37:13,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:37:13,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:37:13,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:37:13,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:37:13,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:37:13,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:37:13,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:37:13,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:37:13,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:37:13,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:37:13,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:37:13,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:37:13,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:37:13,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:37:13,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:37:13,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:37:13,897 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:37:13,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-10-23 18:37:14,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c00935d5/644caf2ffa434ca98d60d2399791727d/FLAGfe5878df6 [2020-10-23 18:37:14,793 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:37:14,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-10-23 18:37:14,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c00935d5/644caf2ffa434ca98d60d2399791727d/FLAGfe5878df6 [2020-10-23 18:37:15,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c00935d5/644caf2ffa434ca98d60d2399791727d [2020-10-23 18:37:15,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:37:15,045 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:37:15,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:37:15,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:37:15,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:37:15,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56eb8d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15, skipping insertion in model container [2020-10-23 18:37:15,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:37:15,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:37:15,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:37:15,586 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:37:15,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:37:15,825 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:37:15,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15 WrapperNode [2020-10-23 18:37:15,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:37:15,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:37:15,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:37:15,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:37:15,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (1/1) ... [2020-10-23 18:37:15,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:37:15,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:37:15,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:37:15,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:37:15,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:37:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:37:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:37:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:37:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:37:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:37:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:37:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:37:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:37:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:37:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:37:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:37:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:37:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:37:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:37:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:37:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:37:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:37:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:37:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:37:17,638 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:37:17,638 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:37:17,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:37:17 BoogieIcfgContainer [2020-10-23 18:37:17,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:37:17,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:37:17,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:37:17,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:37:17,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:37:15" (1/3) ... [2020-10-23 18:37:17,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1747eb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:37:17, skipping insertion in model container [2020-10-23 18:37:17,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:15" (2/3) ... [2020-10-23 18:37:17,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1747eb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:37:17, skipping insertion in model container [2020-10-23 18:37:17,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:37:17" (3/3) ... [2020-10-23 18:37:17,651 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2020-10-23 18:37:17,665 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:37:17,671 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:37:17,687 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:37:17,724 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:37:17,724 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:37:17,725 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:37:17,725 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:37:17,725 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:37:17,726 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:37:17,726 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:37:17,726 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:37:17,762 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-23 18:37:17,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-23 18:37:17,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:17,780 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] [2020-10-23 18:37:17,781 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:17,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:17,791 INFO L82 PathProgramCache]: Analyzing trace with hash 633443298, now seen corresponding path program 1 times [2020-10-23 18:37:17,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:17,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882491687] [2020-10-23 18:37:17,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:18,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:18,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882491687] [2020-10-23 18:37:18,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:37:18,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:37:18,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491628870] [2020-10-23 18:37:18,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:37:18,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:18,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:37:18,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:37:18,369 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-23 18:37:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:21,315 INFO L93 Difference]: Finished difference Result 735 states and 1307 transitions. [2020-10-23 18:37:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:37:21,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-23 18:37:21,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:21,353 INFO L225 Difference]: With dead ends: 735 [2020-10-23 18:37:21,354 INFO L226 Difference]: Without dead ends: 448 [2020-10-23 18:37:21,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:37:21,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-23 18:37:21,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-10-23 18:37:21,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-23 18:37:21,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 673 transitions. [2020-10-23 18:37:21,475 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 673 transitions. Word has length 33 [2020-10-23 18:37:21,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:21,476 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 673 transitions. [2020-10-23 18:37:21,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:37:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 673 transitions. [2020-10-23 18:37:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-23 18:37:21,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:21,483 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:21,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:37:21,484 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:21,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:21,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1059318063, now seen corresponding path program 1 times [2020-10-23 18:37:21,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:21,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913124490] [2020-10-23 18:37:21,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:21,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:21,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:21,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913124490] [2020-10-23 18:37:21,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:37:21,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:37:21,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881479307] [2020-10-23 18:37:21,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:37:21,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:21,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:37:21,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:37:21,923 INFO L87 Difference]: Start difference. First operand 442 states and 673 transitions. Second operand 8 states. [2020-10-23 18:37:24,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:24,280 INFO L93 Difference]: Finished difference Result 1043 states and 1614 transitions. [2020-10-23 18:37:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:37:24,281 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2020-10-23 18:37:24,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:24,287 INFO L225 Difference]: With dead ends: 1043 [2020-10-23 18:37:24,287 INFO L226 Difference]: Without dead ends: 607 [2020-10-23 18:37:24,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:37:24,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-10-23 18:37:24,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 593. [2020-10-23 18:37:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-23 18:37:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 830 transitions. [2020-10-23 18:37:24,339 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 830 transitions. Word has length 106 [2020-10-23 18:37:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:24,340 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 830 transitions. [2020-10-23 18:37:24,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:37:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 830 transitions. [2020-10-23 18:37:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-23 18:37:24,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:24,347 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:24,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:37:24,348 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:24,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:24,348 INFO L82 PathProgramCache]: Analyzing trace with hash -827095523, now seen corresponding path program 1 times [2020-10-23 18:37:24,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:24,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005820795] [2020-10-23 18:37:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:24,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:24,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005820795] [2020-10-23 18:37:24,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545997293] [2020-10-23 18:37:24,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:24,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:37:24,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:24,975 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:24,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:37:24,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-10-23 18:37:24,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677825070] [2020-10-23 18:37:24,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:37:24,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:24,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:37:24,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:37:24,981 INFO L87 Difference]: Start difference. First operand 593 states and 830 transitions. Second operand 3 states. [2020-10-23 18:37:25,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:25,952 INFO L93 Difference]: Finished difference Result 1758 states and 2512 transitions. [2020-10-23 18:37:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:37:25,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-10-23 18:37:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:25,970 INFO L225 Difference]: With dead ends: 1758 [2020-10-23 18:37:25,970 INFO L226 Difference]: Without dead ends: 1171 [2020-10-23 18:37:25,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:37:25,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2020-10-23 18:37:26,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1024. [2020-10-23 18:37:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2020-10-23 18:37:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1445 transitions. [2020-10-23 18:37:26,057 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1445 transitions. Word has length 112 [2020-10-23 18:37:26,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:26,060 INFO L481 AbstractCegarLoop]: Abstraction has 1024 states and 1445 transitions. [2020-10-23 18:37:26,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:37:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1445 transitions. [2020-10-23 18:37:26,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-23 18:37:26,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:26,078 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:26,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:37:26,296 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:26,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:26,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1946881491, now seen corresponding path program 1 times [2020-10-23 18:37:26,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:26,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539293095] [2020-10-23 18:37:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:26,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:26,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:26,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539293095] [2020-10-23 18:37:26,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:37:26,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:37:26,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758269753] [2020-10-23 18:37:26,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:37:26,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:26,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:37:26,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:37:26,603 INFO L87 Difference]: Start difference. First operand 1024 states and 1445 transitions. Second operand 7 states. [2020-10-23 18:37:28,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:28,534 INFO L93 Difference]: Finished difference Result 2078 states and 2979 transitions. [2020-10-23 18:37:28,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:37:28,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-10-23 18:37:28,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:28,547 INFO L225 Difference]: With dead ends: 2078 [2020-10-23 18:37:28,547 INFO L226 Difference]: Without dead ends: 1060 [2020-10-23 18:37:28,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:37:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-10-23 18:37:28,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 895. [2020-10-23 18:37:28,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-23 18:37:28,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1118 transitions. [2020-10-23 18:37:28,593 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1118 transitions. Word has length 145 [2020-10-23 18:37:28,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:28,594 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 1118 transitions. [2020-10-23 18:37:28,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:37:28,594 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1118 transitions. [2020-10-23 18:37:28,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-23 18:37:28,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:28,597 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:28,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:37:28,597 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:28,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:28,598 INFO L82 PathProgramCache]: Analyzing trace with hash -41856599, now seen corresponding path program 1 times [2020-10-23 18:37:28,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:28,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260120783] [2020-10-23 18:37:28,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:28,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:28,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:29,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260120783] [2020-10-23 18:37:29,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:37:29,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:37:29,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821043307] [2020-10-23 18:37:29,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 18:37:29,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:29,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 18:37:29,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:37:29,218 INFO L87 Difference]: Start difference. First operand 895 states and 1118 transitions. Second operand 9 states. [2020-10-23 18:37:29,813 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-10-23 18:37:30,085 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-10-23 18:37:30,494 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-23 18:37:31,438 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-23 18:37:32,012 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-10-23 18:37:33,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:33,451 INFO L93 Difference]: Finished difference Result 2294 states and 2831 transitions. [2020-10-23 18:37:33,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 18:37:33,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2020-10-23 18:37:33,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:33,480 INFO L225 Difference]: With dead ends: 2294 [2020-10-23 18:37:33,481 INFO L226 Difference]: Without dead ends: 1405 [2020-10-23 18:37:33,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2020-10-23 18:37:33,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2020-10-23 18:37:33,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1042. [2020-10-23 18:37:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2020-10-23 18:37:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1230 transitions. [2020-10-23 18:37:33,553 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1230 transitions. Word has length 150 [2020-10-23 18:37:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:33,554 INFO L481 AbstractCegarLoop]: Abstraction has 1042 states and 1230 transitions. [2020-10-23 18:37:33,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 18:37:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1230 transitions. [2020-10-23 18:37:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-23 18:37:33,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:33,564 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:33,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 18:37:33,565 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:33,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:33,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1054183504, now seen corresponding path program 1 times [2020-10-23 18:37:33,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:33,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913812881] [2020-10-23 18:37:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:33,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:33,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:33,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-23 18:37:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-23 18:37:33,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913812881] [2020-10-23 18:37:33,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836105055] [2020-10-23 18:37:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:34,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:37:34,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-23 18:37:34,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:37:34,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-10-23 18:37:34,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665867822] [2020-10-23 18:37:34,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:37:34,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:34,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:37:34,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:37:34,252 INFO L87 Difference]: Start difference. First operand 1042 states and 1230 transitions. Second operand 3 states. [2020-10-23 18:37:35,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:35,274 INFO L93 Difference]: Finished difference Result 2664 states and 3224 transitions. [2020-10-23 18:37:35,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:37:35,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-10-23 18:37:35,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:35,291 INFO L225 Difference]: With dead ends: 2664 [2020-10-23 18:37:35,291 INFO L226 Difference]: Without dead ends: 1628 [2020-10-23 18:37:35,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:37:35,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2020-10-23 18:37:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1483. [2020-10-23 18:37:35,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1483 states. [2020-10-23 18:37:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1764 transitions. [2020-10-23 18:37:35,347 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1764 transitions. Word has length 215 [2020-10-23 18:37:35,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:35,347 INFO L481 AbstractCegarLoop]: Abstraction has 1483 states and 1764 transitions. [2020-10-23 18:37:35,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:37:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1764 transitions. [2020-10-23 18:37:35,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-23 18:37:35,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:35,352 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:35,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:35,566 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:35,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:35,567 INFO L82 PathProgramCache]: Analyzing trace with hash 183865836, now seen corresponding path program 1 times [2020-10-23 18:37:35,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:35,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367116209] [2020-10-23 18:37:35,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:35,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:35,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:35,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-23 18:37:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 94 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:37:36,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367116209] [2020-10-23 18:37:36,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878200912] [2020-10-23 18:37:36,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:36,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:37:36,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:36,790 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-23 18:37:36,791 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:36,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:37:36,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-10-23 18:37:36,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771302500] [2020-10-23 18:37:36,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:37:36,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:36,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:37:36,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:37:36,887 INFO L87 Difference]: Start difference. First operand 1483 states and 1764 transitions. Second operand 14 states. [2020-10-23 18:37:38,132 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-23 18:37:39,083 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-10-23 18:37:39,729 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2020-10-23 18:37:41,404 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-23 18:37:43,212 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2020-10-23 18:37:44,008 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-23 18:37:44,617 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-23 18:37:45,261 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-23 18:37:48,474 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2020-10-23 18:37:49,231 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-23 18:37:51,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:51,381 INFO L93 Difference]: Finished difference Result 5223 states and 6716 transitions. [2020-10-23 18:37:51,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-23 18:37:51,382 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 220 [2020-10-23 18:37:51,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:51,383 INFO L225 Difference]: With dead ends: 5223 [2020-10-23 18:37:51,383 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:37:51,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=578, Invalid=2284, Unknown=0, NotChecked=0, Total=2862 [2020-10-23 18:37:51,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:37:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:37:51,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:37:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:37:51,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 220 [2020-10-23 18:37:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:51,398 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:37:51,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:37:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:37:51,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:37:51,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:51,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:37:51,797 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 129 [2020-10-23 18:37:52,660 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 129 [2020-10-23 18:37:52,794 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 34 [2020-10-23 18:37:53,178 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 39 [2020-10-23 18:37:54,337 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 197 DAG size of output: 36 [2020-10-23 18:37:54,766 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 27 [2020-10-23 18:37:55,225 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 39 [2020-10-23 18:37:55,230 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:37:55,231 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:37:55,231 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:37:55,232 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:37:55,232 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:37:55,232 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-23 18:37:55,232 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:37:55,233 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-23 18:37:55,233 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-23 18:37:55,233 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-23 18:37:55,233 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-23 18:37:55,233 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-23 18:37:55,233 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-23 18:37:55,233 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-23 18:37:55,233 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,234 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-23 18:37:55,235 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-23 18:37:55,236 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-23 18:37:55,236 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-23 18:37:55,236 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-23 18:37:55,236 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,236 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,236 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,236 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,236 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-23 18:37:55,237 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-23 18:37:55,238 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-23 18:37:55,238 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-23 18:37:55,238 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-23 18:37:55,238 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-23 18:37:55,238 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,238 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,238 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,238 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-23 18:37:55,239 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-23 18:37:55,240 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,241 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,242 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,242 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,242 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,242 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-23 18:37:55,242 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-23 18:37:55,242 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-23 18:37:55,242 INFO L270 CegarLoopResult]: At program point L84(line 84) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~a10~0)|))) (.cse0 (not (= 14 ~a4~0))) (.cse2 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 (not (< 0 (+ |old(~a1~0)| 13))) .cse2) (or .cse0 .cse1 (= 8 |old(~a19~0)|) .cse2) (or .cse0 (not (<= 1 |old(~a10~0)|)) .cse2))) [2020-10-23 18:37:55,242 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L84-1(line 84) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,243 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-23 18:37:55,244 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-23 18:37:55,245 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-23 18:37:55,246 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse4 (= ~a1~0 |old(~a1~0)|)) (.cse5 (= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (and .cse4 .cse5 (= ~a10~0 |old(~a10~0)|))) (.cse1 (not (= 14 ~a4~0))) (.cse3 (not (= 0 |old(~a10~0)|))) (.cse2 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~a10~0)|)) .cse2) (or .cse0 .cse1 .cse3 (not (< 0 (+ |old(~a1~0)| 13))) .cse2) (or .cse1 .cse3 (and (= ~a10~0 0) .cse4 .cse5) (= 8 |old(~a19~0)|) .cse2)))) [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-23 18:37:55,247 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-23 18:37:55,248 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-23 18:37:55,249 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,250 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-23 18:37:55,251 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,252 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,252 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,252 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,252 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,252 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:55,252 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:37:55,252 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a4~0 14) (< 0 (+ ~a1~0 13)) (<= 9 ~a19~0) (= ~a10~0 0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-10-23 18:37:55,252 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:37:55,252 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:37:55,253 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (<= 9 ~a19~0) (<= ~a19~0 9) (= ~a1~0 |old(~a1~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (not (< 0 (+ |old(~a1~0)| 13))) (not (= ~a12~0 0))) [2020-10-23 18:37:55,253 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-23 18:37:55,253 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (= ~a10~0 0))) (or (not (<= 9 |old(~a19~0)|)) (<= 1 ~a10~0) (not (<= |old(~a1~0)| 23)) (and (not (= ~a19~0 8)) .cse0) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (not (< 0 (+ |old(~a1~0)| 13))) (and (< 0 (+ ~a1~0 13)) .cse0) (not (= ~a12~0 0)))) [2020-10-23 18:37:55,253 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-23 18:37:55,253 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-23 18:37:55,253 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= ~a10~0 0))) (or (not (<= 9 |old(~a19~0)|)) (<= 1 ~a10~0) (not (<= |old(~a1~0)| 23)) (and (not (= ~a19~0 8)) .cse0) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (not (< 0 (+ |old(~a1~0)| 13))) (and (< 0 (+ ~a1~0 13)) .cse0) (not (= ~a12~0 0)))) [2020-10-23 18:37:55,254 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-23 18:37:55,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:37:55 BoogieIcfgContainer [2020-10-23 18:37:55,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:37:55,293 INFO L168 Benchmark]: Toolchain (without parser) took 40253.09 ms. Allocated memory was 154.1 MB in the beginning and 388.0 MB in the end (delta: 233.8 MB). Free memory was 128.9 MB in the beginning and 161.2 MB in the end (delta: -32.3 MB). Peak memory consumption was 235.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:55,294 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 94.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:37:55,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.31 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 126.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:55,295 INFO L168 Benchmark]: Boogie Preprocessor took 139.04 ms. Allocated memory is still 154.1 MB. Free memory was 126.5 MB in the beginning and 121.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:55,296 INFO L168 Benchmark]: RCFGBuilder took 1673.52 ms. Allocated memory is still 154.1 MB. Free memory was 121.7 MB in the beginning and 107.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 45.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:55,297 INFO L168 Benchmark]: TraceAbstraction took 37648.81 ms. Allocated memory was 154.1 MB in the beginning and 388.0 MB in the end (delta: 233.8 MB). Free memory was 106.8 MB in the beginning and 161.2 MB in the end (delta: -54.4 MB). Peak memory consumption was 212.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:55,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 94.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 779.31 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 126.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 139.04 ms. Allocated memory is still 154.1 MB. Free memory was 126.5 MB in the beginning and 121.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1673.52 ms. Allocated memory is still 154.1 MB. Free memory was 121.7 MB in the beginning and 107.3 MB in the end (delta: 14.4 MB). Peak memory consumption was 45.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37648.81 ms. Allocated memory was 154.1 MB in the beginning and 388.0 MB in the end (delta: 233.8 MB). Free memory was 106.8 MB in the beginning and 161.2 MB in the end (delta: -54.4 MB). Peak memory consumption was 212.4 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: 584]: Loop Invariant Derived loop invariant: ((((((((!(9 <= \old(a19)) || 1 <= a10) || !(\old(a1) <= 23)) || (!(a19 == 8) && a10 == 0)) || !(14 == a4)) || !(\old(a19) <= 9)) || !(0 == \old(a10))) || !(0 < \old(a1) + 13)) || (0 < a1 + 13 && a10 == 0)) || !(a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 33.8s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 28.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 610 SDtfs, 4919 SDslu, 349 SDs, 0 SdLazy, 9809 SolverSat, 2145 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 693 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1483occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 840 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 155 PreInvPairs, 221 NumberOfFragments, 361 HoareAnnotationTreeSize, 155 FomulaSimplifications, 51238 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 9028 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1528 NumberOfCodeBlocks, 1528 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1518 ConstructedInterpolants, 0 QuantifiedInterpolants, 1055074 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1234 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 575/605 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...