/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_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:38:59,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:38:59,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:38:59,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:38:59,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:38:59,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:38:59,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:38:59,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:38:59,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:38:59,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:38:59,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:38:59,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:38:59,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:38:59,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:38:59,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:38:59,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:38:59,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 22:38:59,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:38:59,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:38:59,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:38:59,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:38:59,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:38:59,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:38:59,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:38:59,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:38:59,255 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:38:59,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:38:59,256 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:38:59,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:38:59,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:38:59,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:38:59,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:38:59,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:38:59,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:38:59,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:38:59,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:38:59,258 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:38:59,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:38:59,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:38:59,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:38:59,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:38:59,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:38:59,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:38:59,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:38:59,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:38:59,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:38:59,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:38:59,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:38:59,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:38:59,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:38:59,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:38:59,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:38:59,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:38:59,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:38:59,739 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:38:59,740 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:38:59,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label20.c [2020-11-06 22:38:59,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/515a0ed6e/a5545a1e58ed4557bbf39bc420a7f325/FLAG7dff5440e [2020-11-06 22:39:00,721 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:39:00,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label20.c [2020-11-06 22:39:00,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/515a0ed6e/a5545a1e58ed4557bbf39bc420a7f325/FLAG7dff5440e [2020-11-06 22:39:00,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/515a0ed6e/a5545a1e58ed4557bbf39bc420a7f325 [2020-11-06 22:39:00,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:39:00,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:39:00,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:39:00,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:39:00,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:39:00,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:00" (1/1) ... [2020-11-06 22:39:00,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0fe900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:00, skipping insertion in model container [2020-11-06 22:39:00,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:00" (1/1) ... [2020-11-06 22:39:00,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:39:01,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:39:01,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:39:01,556 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:39:01,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:39:01,800 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:39:01,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01 WrapperNode [2020-11-06 22:39:01,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:39:01,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:39:01,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:39:01,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:39:01,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (1/1) ... [2020-11-06 22:39:01,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (1/1) ... [2020-11-06 22:39:01,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (1/1) ... [2020-11-06 22:39:01,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (1/1) ... [2020-11-06 22:39:01,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (1/1) ... [2020-11-06 22:39:01,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (1/1) ... [2020-11-06 22:39:02,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (1/1) ... [2020-11-06 22:39:02,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:39:02,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:39:02,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:39:02,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:39:02,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:39:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:39:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:39:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:39:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:39:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:39:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:39:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:39:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:39:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:39:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:39:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:39:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:39:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:39:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:39:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:39:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:39:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:39:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:39:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:39:03,728 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:39:03,729 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:39:03,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:03 BoogieIcfgContainer [2020-11-06 22:39:03,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:39:03,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:39:03,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:39:03,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:39:03,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:39:00" (1/3) ... [2020-11-06 22:39:03,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec50d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:03, skipping insertion in model container [2020-11-06 22:39:03,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:01" (2/3) ... [2020-11-06 22:39:03,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec50d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:03, skipping insertion in model container [2020-11-06 22:39:03,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:03" (3/3) ... [2020-11-06 22:39:03,741 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label20.c [2020-11-06 22:39:03,759 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:39:03,763 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:39:03,777 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:39:03,810 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:39:03,810 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:39:03,810 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:39:03,810 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:39:03,810 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:39:03,810 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:39:03,811 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:39:03,811 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:39:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-11-06 22:39:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-06 22:39:03,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:39:03,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:39:03,844 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:39:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:39:03,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1160931286, now seen corresponding path program 1 times [2020-11-06 22:39:03,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:39:03,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639433735] [2020-11-06 22:39:03,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:39:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:04,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:39:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:39:04,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639433735] [2020-11-06 22:39:04,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:39:04,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 22:39:04,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772695691] [2020-11-06 22:39:04,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:39:04,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:39:04,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:39:04,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:39:04,311 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-11-06 22:39:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:39:07,371 INFO L93 Difference]: Finished difference Result 735 states and 1307 transitions. [2020-11-06 22:39:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 22:39:07,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-06 22:39:07,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:39:07,416 INFO L225 Difference]: With dead ends: 735 [2020-11-06 22:39:07,417 INFO L226 Difference]: Without dead ends: 448 [2020-11-06 22:39:07,437 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 [2020-11-06 22:39:07,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-11-06 22:39:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-11-06 22:39:07,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-11-06 22:39:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 673 transitions. [2020-11-06 22:39:07,585 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 673 transitions. Word has length 35 [2020-11-06 22:39:07,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:39:07,586 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 673 transitions. [2020-11-06 22:39:07,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:39:07,586 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 673 transitions. [2020-11-06 22:39:07,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-11-06 22:39:07,593 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:39:07,593 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:39:07,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:39:07,594 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:39:07,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:39:07,596 INFO L82 PathProgramCache]: Analyzing trace with hash -192515201, now seen corresponding path program 1 times [2020-11-06 22:39:07,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:39:07,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109975890] [2020-11-06 22:39:07,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:39:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:07,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:39:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:07,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:39:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:39:08,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109975890] [2020-11-06 22:39:08,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:39:08,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:39:08,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605581655] [2020-11-06 22:39:08,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 22:39:08,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:39:08,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 22:39:08,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:39:08,066 INFO L87 Difference]: Start difference. First operand 442 states and 673 transitions. Second operand 7 states. [2020-11-06 22:39:10,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:39:10,410 INFO L93 Difference]: Finished difference Result 1200 states and 1876 transitions. [2020-11-06 22:39:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 22:39:10,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-11-06 22:39:10,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:39:10,426 INFO L225 Difference]: With dead ends: 1200 [2020-11-06 22:39:10,426 INFO L226 Difference]: Without dead ends: 764 [2020-11-06 22:39:10,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:39:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-11-06 22:39:10,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 595. [2020-11-06 22:39:10,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-11-06 22:39:10,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 860 transitions. [2020-11-06 22:39:10,540 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 860 transitions. Word has length 117 [2020-11-06 22:39:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:39:10,543 INFO L481 AbstractCegarLoop]: Abstraction has 595 states and 860 transitions. [2020-11-06 22:39:10,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 22:39:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 860 transitions. [2020-11-06 22:39:10,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-11-06 22:39:10,560 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:39:10,561 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:39:10,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:39:10,562 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:39:10,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:39:10,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1215026895, now seen corresponding path program 1 times [2020-11-06 22:39:10,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:39:10,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936975151] [2020-11-06 22:39:10,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:39:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:10,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:39:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:10,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:39:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:39:11,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936975151] [2020-11-06 22:39:11,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:39:11,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:39:11,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509152352] [2020-11-06 22:39:11,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:39:11,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:39:11,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:39:11,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:39:11,056 INFO L87 Difference]: Start difference. First operand 595 states and 860 transitions. Second operand 8 states. [2020-11-06 22:39:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:39:13,136 INFO L93 Difference]: Finished difference Result 1510 states and 2220 transitions. [2020-11-06 22:39:13,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:39:13,138 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2020-11-06 22:39:13,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:39:13,146 INFO L225 Difference]: With dead ends: 1510 [2020-11-06 22:39:13,146 INFO L226 Difference]: Without dead ends: 921 [2020-11-06 22:39:13,150 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 [2020-11-06 22:39:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-11-06 22:39:13,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 899. [2020-11-06 22:39:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-11-06 22:39:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1192 transitions. [2020-11-06 22:39:13,203 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1192 transitions. Word has length 157 [2020-11-06 22:39:13,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:39:13,204 INFO L481 AbstractCegarLoop]: Abstraction has 899 states and 1192 transitions. [2020-11-06 22:39:13,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:39:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1192 transitions. [2020-11-06 22:39:13,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-11-06 22:39:13,208 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:39:13,209 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-06 22:39:13,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:39:13,209 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:39:13,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:39:13,210 INFO L82 PathProgramCache]: Analyzing trace with hash 630286076, now seen corresponding path program 1 times [2020-11-06 22:39:13,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:39:13,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567306768] [2020-11-06 22:39:13,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:39:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:13,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:39:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:13,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:39:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:13,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-06 22:39:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:13,637 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:39:13,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567306768] [2020-11-06 22:39:13,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862769288] [2020-11-06 22:39:13,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:39:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:13,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:39:13,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:39:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:39:14,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:39:14,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-11-06 22:39:14,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163977561] [2020-11-06 22:39:14,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:39:14,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:39:14,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:39:14,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:39:14,295 INFO L87 Difference]: Start difference. First operand 899 states and 1192 transitions. Second operand 10 states. [2020-11-06 22:39:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:39:17,686 INFO L93 Difference]: Finished difference Result 2416 states and 3331 transitions. [2020-11-06 22:39:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 22:39:17,687 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2020-11-06 22:39:17,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:39:17,698 INFO L225 Difference]: With dead ends: 2416 [2020-11-06 22:39:17,698 INFO L226 Difference]: Without dead ends: 1523 [2020-11-06 22:39:17,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-11-06 22:39:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-11-06 22:39:17,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1207. [2020-11-06 22:39:17,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2020-11-06 22:39:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1544 transitions. [2020-11-06 22:39:17,754 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1544 transitions. Word has length 187 [2020-11-06 22:39:17,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:39:17,755 INFO L481 AbstractCegarLoop]: Abstraction has 1207 states and 1544 transitions. [2020-11-06 22:39:17,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:39:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1544 transitions. [2020-11-06 22:39:17,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-11-06 22:39:17,760 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:39:17,760 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:39:17,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:39:17,975 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:39:17,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:39:17,976 INFO L82 PathProgramCache]: Analyzing trace with hash 696920362, now seen corresponding path program 1 times [2020-11-06 22:39:17,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:39:17,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823721486] [2020-11-06 22:39:17,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:39:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:18,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:39:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:18,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:39:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:18,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 22:39:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:18,564 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 54 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:39:18,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823721486] [2020-11-06 22:39:18,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405241311] [2020-11-06 22:39:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:39:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:39:18,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:39:18,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:39:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-11-06 22:39:18,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:39:18,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:39:18,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930724391] [2020-11-06 22:39:18,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:39:18,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:39:18,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:39:18,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:39:18,789 INFO L87 Difference]: Start difference. First operand 1207 states and 1544 transitions. Second operand 3 states. [2020-11-06 22:39:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:39:19,698 INFO L93 Difference]: Finished difference Result 2405 states and 3088 transitions. [2020-11-06 22:39:19,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:39:19,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-11-06 22:39:19,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:39:19,700 INFO L225 Difference]: With dead ends: 2405 [2020-11-06 22:39:19,700 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:39:19,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:39:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:39:19,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:39:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:39:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:39:19,716 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2020-11-06 22:39:19,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:39:19,717 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:39:19,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:39:19,717 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:39:19,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:39:19,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:39:19,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:39:20,090 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2020-11-06 22:39:20,629 WARN L194 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 26 [2020-11-06 22:39:21,136 WARN L194 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 32 [2020-11-06 22:39:21,501 WARN L194 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 26 [2020-11-06 22:39:21,506 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:39:21,507 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:39:21,507 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:39:21,507 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:39:21,508 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:39:21,508 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#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)|)) [2020-11-06 22:39:21,508 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-11-06 22:39:21,509 INFO L266 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-11-06 22:39:21,510 INFO L266 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-11-06 22:39:21,510 INFO L266 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-11-06 22:39:21,510 INFO L266 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-11-06 22:39:21,510 INFO L266 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,510 INFO L266 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,510 INFO L266 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,510 INFO L266 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-11-06 22:39:21,511 INFO L266 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-11-06 22:39:21,512 INFO L266 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-11-06 22:39:21,512 INFO L266 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-11-06 22:39:21,512 INFO L266 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-11-06 22:39:21,512 INFO L266 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-11-06 22:39:21,512 INFO L266 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,512 INFO L266 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,512 INFO L266 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,512 INFO L266 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-11-06 22:39:21,513 INFO L266 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,514 INFO L266 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,515 INFO L266 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,515 INFO L266 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-11-06 22:39:21,515 INFO L266 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-11-06 22:39:21,515 INFO L266 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-11-06 22:39:21,515 INFO L266 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-11-06 22:39:21,515 INFO L266 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-11-06 22:39:21,519 INFO L266 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,520 INFO L266 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,521 INFO L266 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-11-06 22:39:21,521 INFO L266 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-11-06 22:39:21,521 INFO L266 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-11-06 22:39:21,521 INFO L266 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-11-06 22:39:21,521 INFO L266 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-11-06 22:39:21,521 INFO L266 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-11-06 22:39:21,521 INFO L266 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-06 22:39:21,523 INFO L266 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-11-06 22:39:21,523 INFO L266 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-11-06 22:39:21,523 INFO L266 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-11-06 22:39:21,523 INFO L266 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-11-06 22:39:21,524 INFO L266 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-11-06 22:39:21,525 INFO L266 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-11-06 22:39:21,526 INFO L266 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-11-06 22:39:21,526 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,527 INFO L266 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,528 INFO L266 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,528 INFO L266 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-11-06 22:39:21,528 INFO L266 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-11-06 22:39:21,528 INFO L266 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-11-06 22:39:21,528 INFO L266 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-11-06 22:39:21,529 INFO L266 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-11-06 22:39:21,529 INFO L266 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-11-06 22:39:21,529 INFO L266 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-11-06 22:39:21,529 INFO L266 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-11-06 22:39:21,529 INFO L266 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,530 INFO L266 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-11-06 22:39:21,531 INFO L266 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,531 INFO L266 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,531 INFO L266 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-11-06 22:39:21,531 INFO L266 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-11-06 22:39:21,531 INFO L266 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-11-06 22:39:21,531 INFO L266 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-11-06 22:39:21,531 INFO L266 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-11-06 22:39:21,531 INFO L266 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-11-06 22:39:21,532 INFO L262 CegarLoopResult]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (= 7 |old(~a19~0)|)) (.cse1 (not (<= 1 |old(~a10~0)|)))) (and (or .cse0 (not (= 0 |old(~a10~0)|))) (or .cse0 (not (<= |old(~a19~0)| 9)) .cse1) (or (not (<= |old(~a10~0)| 2)) .cse1))) [2020-11-06 22:39:21,532 INFO L266 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-11-06 22:39:21,532 INFO L266 CegarLoopResult]: For program point L90-1(line 90) no Hoare annotation was computed. [2020-11-06 22:39:21,532 INFO L266 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-06 22:39:21,532 INFO L266 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-11-06 22:39:21,532 INFO L266 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-11-06 22:39:21,532 INFO L266 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-11-06 22:39:21,533 INFO L266 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-11-06 22:39:21,533 INFO L266 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,533 INFO L266 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,533 INFO L266 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,533 INFO L266 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,533 INFO L266 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,533 INFO L266 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,533 INFO L266 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~a10~0)|))) (.cse2 (= 7 |old(~a19~0)|)) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (not (<= |old(~a10~0)| 2)) .cse1) (or .cse2 .cse0 (not (<= |old(~a19~0)| 9)) .cse1) (or .cse2 .cse0 (not (= 0 |old(~a10~0)|))))) [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-11-06 22:39:21,534 INFO L266 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,535 INFO L266 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-11-06 22:39:21,536 INFO L266 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,537 INFO L266 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-11-06 22:39:21,538 INFO L266 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-11-06 22:39:21,539 INFO L266 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,539 INFO L266 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,539 INFO L266 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,539 INFO L266 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,539 INFO L266 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,539 INFO L266 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:39:21,539 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:39:21,539 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 9 ~a19~0) (= ~a10~0 0) (<= ~a19~0 9)) [2020-11-06 22:39:21,539 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:39:21,539 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:39:21,540 INFO L262 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(~a19~0)| 9)) (not (= 0 |old(~a10~0)|))) [2020-11-06 22:39:21,540 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-11-06 22:39:21,540 INFO L262 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= 1 ~a10~0)) (.cse1 (not (= 7 ~a19~0)))) (or (not (<= 9 |old(~a19~0)|)) (and .cse0 .cse1 (<= ~a19~0 9)) (and .cse0 (<= ~a10~0 2)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) .cse1))) [2020-11-06 22:39:21,540 INFO L266 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-11-06 22:39:21,540 INFO L266 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-11-06 22:39:21,540 INFO L262 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= 1 ~a10~0)) (.cse1 (not (= 7 ~a19~0)))) (or (not (<= 9 |old(~a19~0)|)) (and .cse0 .cse1 (<= ~a19~0 9)) (and .cse0 (<= ~a10~0 2)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) .cse1))) [2020-11-06 22:39:21,540 INFO L266 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-11-06 22:39:21,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:39:21 BoogieIcfgContainer [2020-11-06 22:39:21,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:39:21,573 INFO L168 Benchmark]: Toolchain (without parser) took 20630.90 ms. Allocated memory was 151.0 MB in the beginning and 342.9 MB in the end (delta: 191.9 MB). Free memory was 125.7 MB in the beginning and 307.9 MB in the end (delta: -182.2 MB). Peak memory consumption was 201.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:39:21,573 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:39:21,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.08 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 97.8 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-11-06 22:39:21,575 INFO L168 Benchmark]: Boogie Preprocessor took 235.64 ms. Allocated memory is still 151.0 MB. Free memory was 97.8 MB in the beginning and 129.9 MB in the end (delta: -32.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2020-11-06 22:39:21,576 INFO L168 Benchmark]: RCFGBuilder took 1690.13 ms. Allocated memory is still 151.0 MB. Free memory was 129.9 MB in the beginning and 110.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. [2020-11-06 22:39:21,578 INFO L168 Benchmark]: TraceAbstraction took 17837.06 ms. Allocated memory was 151.0 MB in the beginning and 342.9 MB in the end (delta: 191.9 MB). Free memory was 109.7 MB in the beginning and 307.9 MB in the end (delta: -198.3 MB). Peak memory consumption was 183.9 MB. Max. memory is 8.0 GB. [2020-11-06 22:39:21,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 848.08 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 97.8 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 235.64 ms. Allocated memory is still 151.0 MB. Free memory was 97.8 MB in the beginning and 129.9 MB in the end (delta: -32.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1690.13 ms. Allocated memory is still 151.0 MB. Free memory was 129.9 MB in the beginning and 110.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17837.06 ms. Allocated memory was 151.0 MB in the beginning and 342.9 MB in the end (delta: 191.9 MB). Free memory was 109.7 MB in the beginning and 307.9 MB in the end (delta: -198.3 MB). Peak memory consumption was 183.9 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 && !(7 == a19)) && a19 <= 9)) || (1 <= a10 && a10 <= 2)) || !(\old(a19) <= 9)) || !(0 == \old(a10))) || (a10 == 0 && !(7 == a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 275 SDtfs, 3192 SDslu, 200 SDs, 0 SdLazy, 4093 SolverSat, 1365 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 459 GetRequests, 408 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1207occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 513 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 71 PreInvPairs, 87 NumberOfFragments, 267 HoareAnnotationTreeSize, 71 FomulaSimplifications, 8614 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2343 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1091 NumberOfCodeBlocks, 1091 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1084 ConstructedInterpolants, 0 QuantifiedInterpolants, 573280 SizeOfPredicates, 2 NumberOfNonLiveVariables, 875 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 493/574 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...