/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:32:35,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:32:35,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:32:35,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:32:35,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:32:35,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:32:35,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:32:35,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:32:35,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:32:35,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:32:35,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:32:35,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:32:35,554 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:32:35,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:32:35,554 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:32:35,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:32:35,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:32:35,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:32:35,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:32:35,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:32:35,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:32:35,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:32:35,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:32:35,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:32:35,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:32:35,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:32:35,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:32:35,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:32:35,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:32:35,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:32:35,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:32:35,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:32:35,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:32:35,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:32:35,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:32:35,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:32:35,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:32:35,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:32:35,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:32:35,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:32:35,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:32:35,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:32:35,952 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:32:35,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-11-06 22:32:36,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f92c2b9d1/aa01af12d20644a692fc20522808d724/FLAGdda09e465 [2020-11-06 22:32:36,707 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:32:36,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-11-06 22:32:36,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f92c2b9d1/aa01af12d20644a692fc20522808d724/FLAGdda09e465 [2020-11-06 22:32:36,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f92c2b9d1/aa01af12d20644a692fc20522808d724 [2020-11-06 22:32:36,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:32:36,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:32:36,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:32:36,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:32:36,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:32:36,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:36" (1/1) ... [2020-11-06 22:32:37,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461e5515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:36, skipping insertion in model container [2020-11-06 22:32:37,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:36" (1/1) ... [2020-11-06 22:32:37,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:32:37,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:32:37,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:32:37,543 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:32:37,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:32:37,692 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:32:37,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37 WrapperNode [2020-11-06 22:32:37,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:32:37,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:32:37,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:32:37,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:32:37,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (1/1) ... [2020-11-06 22:32:37,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (1/1) ... [2020-11-06 22:32:37,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (1/1) ... [2020-11-06 22:32:37,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (1/1) ... [2020-11-06 22:32:37,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (1/1) ... [2020-11-06 22:32:37,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (1/1) ... [2020-11-06 22:32:37,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (1/1) ... [2020-11-06 22:32:37,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:32:37,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:32:37,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:32:37,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:32:37,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:32:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:32:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:32:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:32:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:32:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:32:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:32:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:32:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:32:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:32:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:32:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:32:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:32:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:32:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:32:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:32:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:32:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:32:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:32:37,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:32:39,290 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:32:39,291 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:32:39,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:39 BoogieIcfgContainer [2020-11-06 22:32:39,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:32:39,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:32:39,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:32:39,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:32:39,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:36" (1/3) ... [2020-11-06 22:32:39,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332e5d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:39, skipping insertion in model container [2020-11-06 22:32:39,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:37" (2/3) ... [2020-11-06 22:32:39,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332e5d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:39, skipping insertion in model container [2020-11-06 22:32:39,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:39" (3/3) ... [2020-11-06 22:32:39,306 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-11-06 22:32:39,321 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:32:39,325 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:32:39,335 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:32:39,362 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:32:39,362 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:32:39,362 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:32:39,363 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:32:39,363 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:32:39,363 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:32:39,363 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:32:39,363 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:32:39,385 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-11-06 22:32:39,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-06 22:32:39,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:39,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:39,400 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:39,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:39,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1519427313, now seen corresponding path program 1 times [2020-11-06 22:32:39,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:39,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6241514] [2020-11-06 22:32:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:40,160 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:32:40,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:40,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:40,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6241514] [2020-11-06 22:32:40,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:32:40,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 22:32:40,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358920712] [2020-11-06 22:32:40,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:32:40,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:40,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:32:40,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:32:40,294 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-11-06 22:32:40,505 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:32:42,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:42,270 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-11-06 22:32:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:32:42,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-11-06 22:32:42,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:42,301 INFO L225 Difference]: With dead ends: 562 [2020-11-06 22:32:42,301 INFO L226 Difference]: Without dead ends: 287 [2020-11-06 22:32:42,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:32:42,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-11-06 22:32:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-11-06 22:32:42,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-11-06 22:32:42,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 403 transitions. [2020-11-06 22:32:42,403 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 403 transitions. Word has length 120 [2020-11-06 22:32:42,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:42,406 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 403 transitions. [2020-11-06 22:32:42,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:32:42,406 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 403 transitions. [2020-11-06 22:32:42,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-11-06 22:32:42,413 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:42,414 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:42,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:32:42,414 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:42,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:42,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1624468203, now seen corresponding path program 1 times [2020-11-06 22:32:42,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:42,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068646181] [2020-11-06 22:32:42,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:42,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:42,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:42,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068646181] [2020-11-06 22:32:42,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:32:42,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:32:42,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021480733] [2020-11-06 22:32:42,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:32:42,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:42,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:32:42,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:32:42,723 INFO L87 Difference]: Start difference. First operand 281 states and 403 transitions. Second operand 8 states. [2020-11-06 22:32:42,887 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:32:44,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:44,697 INFO L93 Difference]: Finished difference Result 715 states and 1051 transitions. [2020-11-06 22:32:44,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 22:32:44,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 130 [2020-11-06 22:32:44,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:44,708 INFO L225 Difference]: With dead ends: 715 [2020-11-06 22:32:44,709 INFO L226 Difference]: Without dead ends: 440 [2020-11-06 22:32:44,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:32:44,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-11-06 22:32:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 422. [2020-11-06 22:32:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-11-06 22:32:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 591 transitions. [2020-11-06 22:32:44,756 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 591 transitions. Word has length 130 [2020-11-06 22:32:44,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:44,756 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 591 transitions. [2020-11-06 22:32:44,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:32:44,756 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 591 transitions. [2020-11-06 22:32:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-11-06 22:32:44,761 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:44,761 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:44,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:32:44,762 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:44,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:44,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1378538514, now seen corresponding path program 1 times [2020-11-06 22:32:44,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:44,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119096890] [2020-11-06 22:32:44,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:45,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:45,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119096890] [2020-11-06 22:32:45,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407843715] [2020-11-06 22:32:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:45,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-06 22:32:45,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:45,483 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:45,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:32:45,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-11-06 22:32:45,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482337829] [2020-11-06 22:32:45,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:32:45,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:45,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:32:45,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:32:45,486 INFO L87 Difference]: Start difference. First operand 422 states and 591 transitions. Second operand 3 states. [2020-11-06 22:32:46,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:46,315 INFO L93 Difference]: Finished difference Result 1249 states and 1789 transitions. [2020-11-06 22:32:46,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:32:46,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-11-06 22:32:46,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:46,335 INFO L225 Difference]: With dead ends: 1249 [2020-11-06 22:32:46,335 INFO L226 Difference]: Without dead ends: 833 [2020-11-06 22:32:46,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:32:46,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-11-06 22:32:46,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2020-11-06 22:32:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-11-06 22:32:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1165 transitions. [2020-11-06 22:32:46,413 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1165 transitions. Word has length 131 [2020-11-06 22:32:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:46,414 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 1165 transitions. [2020-11-06 22:32:46,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:32:46,414 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1165 transitions. [2020-11-06 22:32:46,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-11-06 22:32:46,420 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:46,421 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:46,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:32:46,635 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:46,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:46,636 INFO L82 PathProgramCache]: Analyzing trace with hash -81517374, now seen corresponding path program 1 times [2020-11-06 22:32:46,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:46,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310618627] [2020-11-06 22:32:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:46,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:46,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:47,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310618627] [2020-11-06 22:32:47,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:32:47,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:32:47,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448306064] [2020-11-06 22:32:47,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:32:47,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:47,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:32:47,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:32:47,007 INFO L87 Difference]: Start difference. First operand 833 states and 1165 transitions. Second operand 8 states. [2020-11-06 22:32:47,189 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-06 22:32:48,777 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-06 22:32:49,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:49,608 INFO L93 Difference]: Finished difference Result 2246 states and 3243 transitions. [2020-11-06 22:32:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:32:49,609 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 137 [2020-11-06 22:32:49,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:49,625 INFO L225 Difference]: With dead ends: 2246 [2020-11-06 22:32:49,625 INFO L226 Difference]: Without dead ends: 1419 [2020-11-06 22:32:49,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:32:49,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2020-11-06 22:32:49,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1131. [2020-11-06 22:32:49,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2020-11-06 22:32:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1525 transitions. [2020-11-06 22:32:49,698 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1525 transitions. Word has length 137 [2020-11-06 22:32:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:49,698 INFO L481 AbstractCegarLoop]: Abstraction has 1131 states and 1525 transitions. [2020-11-06 22:32:49,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:32:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1525 transitions. [2020-11-06 22:32:49,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-06 22:32:49,703 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:49,703 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:49,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 22:32:49,704 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:49,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:49,704 INFO L82 PathProgramCache]: Analyzing trace with hash 607490405, now seen corresponding path program 1 times [2020-11-06 22:32:49,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:49,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678913702] [2020-11-06 22:32:49,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:49,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:49,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:49,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:32:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:32:49,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678913702] [2020-11-06 22:32:49,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419885876] [2020-11-06 22:32:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:50,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:32:50,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-06 22:32:50,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:32:50,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:32:50,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703843979] [2020-11-06 22:32:50,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:32:50,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:50,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:32:50,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:32:50,206 INFO L87 Difference]: Start difference. First operand 1131 states and 1525 transitions. Second operand 3 states. [2020-11-06 22:32:50,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:50,835 INFO L93 Difference]: Finished difference Result 2532 states and 3500 transitions. [2020-11-06 22:32:50,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:32:50,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-06 22:32:50,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:50,846 INFO L225 Difference]: With dead ends: 2532 [2020-11-06 22:32:50,847 INFO L226 Difference]: Without dead ends: 1407 [2020-11-06 22:32:50,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:32:50,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2020-11-06 22:32:50,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1407. [2020-11-06 22:32:50,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1407 states. [2020-11-06 22:32:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1900 transitions. [2020-11-06 22:32:50,921 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1900 transitions. Word has length 148 [2020-11-06 22:32:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:50,922 INFO L481 AbstractCegarLoop]: Abstraction has 1407 states and 1900 transitions. [2020-11-06 22:32:50,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:32:50,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1900 transitions. [2020-11-06 22:32:50,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-06 22:32:50,935 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:50,936 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:32:51,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:51,151 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:51,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:51,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1667456653, now seen corresponding path program 1 times [2020-11-06 22:32:51,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:51,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935513927] [2020-11-06 22:32:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:51,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:51,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:51,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:32:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:32:51,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935513927] [2020-11-06 22:32:51,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065382027] [2020-11-06 22:32:51,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:51,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:32:51,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:51,695 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:32:51,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:32:51,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:32:51,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935715098] [2020-11-06 22:32:51,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:32:51,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:51,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:32:51,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:32:51,699 INFO L87 Difference]: Start difference. First operand 1407 states and 1900 transitions. Second operand 10 states. [2020-11-06 22:32:51,972 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:32:54,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:32:54,866 INFO L93 Difference]: Finished difference Result 3383 states and 5210 transitions. [2020-11-06 22:32:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 22:32:54,869 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-11-06 22:32:54,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:32:54,889 INFO L225 Difference]: With dead ends: 3383 [2020-11-06 22:32:54,889 INFO L226 Difference]: Without dead ends: 1982 [2020-11-06 22:32:54,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-11-06 22:32:54,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-11-06 22:32:54,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1904. [2020-11-06 22:32:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1904 states. [2020-11-06 22:32:54,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2660 transitions. [2020-11-06 22:32:54,999 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2660 transitions. Word has length 160 [2020-11-06 22:32:54,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:32:54,999 INFO L481 AbstractCegarLoop]: Abstraction has 1904 states and 2660 transitions. [2020-11-06 22:32:54,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:32:54,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2660 transitions. [2020-11-06 22:32:55,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-11-06 22:32:55,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:32:55,010 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-06 22:32:55,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:55,224 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:32:55,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:32:55,225 INFO L82 PathProgramCache]: Analyzing trace with hash 187841490, now seen corresponding path program 1 times [2020-11-06 22:32:55,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:32:55,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021878316] [2020-11-06 22:32:55,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:32:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:55,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:32:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:55,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:32:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:55,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:32:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:55,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-11-06 22:32:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 58 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-06 22:32:55,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021878316] [2020-11-06 22:32:55,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304715492] [2020-11-06 22:32:55,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:32:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:32:55,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-06 22:32:55,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:32:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 46 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-06 22:32:55,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:32:55,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 10 [2020-11-06 22:32:55,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947812443] [2020-11-06 22:32:55,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:32:55,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:32:55,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:32:55,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:32:55,816 INFO L87 Difference]: Start difference. First operand 1904 states and 2660 transitions. Second operand 10 states. [2020-11-06 22:32:55,963 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-06 22:32:56,754 WARN L194 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-11-06 22:32:57,549 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-11-06 22:32:58,338 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-06 22:32:58,727 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:33:00,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:00,271 INFO L93 Difference]: Finished difference Result 4512 states and 6784 transitions. [2020-11-06 22:33:00,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-06 22:33:00,271 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-11-06 22:33:00,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:00,295 INFO L225 Difference]: With dead ends: 4512 [2020-11-06 22:33:00,295 INFO L226 Difference]: Without dead ends: 2618 [2020-11-06 22:33:00,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2020-11-06 22:33:00,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2020-11-06 22:33:00,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2349. [2020-11-06 22:33:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-11-06 22:33:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3133 transitions. [2020-11-06 22:33:00,458 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3133 transitions. Word has length 175 [2020-11-06 22:33:00,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:00,459 INFO L481 AbstractCegarLoop]: Abstraction has 2349 states and 3133 transitions. [2020-11-06 22:33:00,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:33:00,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3133 transitions. [2020-11-06 22:33:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-11-06 22:33:00,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:00,471 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:00,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:00,687 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:00,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:00,688 INFO L82 PathProgramCache]: Analyzing trace with hash 506591341, now seen corresponding path program 1 times [2020-11-06 22:33:00,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:00,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420840202] [2020-11-06 22:33:00,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:00,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:00,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:00,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-06 22:33:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:01,008 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:33:01,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420840202] [2020-11-06 22:33:01,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292603425] [2020-11-06 22:33:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:01,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:33:01,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-06 22:33:01,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:33:01,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-11-06 22:33:01,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573490164] [2020-11-06 22:33:01,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:33:01,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:01,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:33:01,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:33:01,231 INFO L87 Difference]: Start difference. First operand 2349 states and 3133 transitions. Second operand 3 states. [2020-11-06 22:33:01,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:01,848 INFO L93 Difference]: Finished difference Result 6126 states and 8139 transitions. [2020-11-06 22:33:01,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:33:01,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-11-06 22:33:01,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:01,872 INFO L225 Difference]: With dead ends: 6126 [2020-11-06 22:33:01,872 INFO L226 Difference]: Without dead ends: 3787 [2020-11-06 22:33:01,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:33:01,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3787 states. [2020-11-06 22:33:02,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3787 to 3499. [2020-11-06 22:33:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3499 states. [2020-11-06 22:33:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 4619 transitions. [2020-11-06 22:33:02,036 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 4619 transitions. Word has length 192 [2020-11-06 22:33:02,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:02,036 INFO L481 AbstractCegarLoop]: Abstraction has 3499 states and 4619 transitions. [2020-11-06 22:33:02,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:33:02,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 4619 transitions. [2020-11-06 22:33:02,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-11-06 22:33:02,056 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:02,057 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:02,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:02,273 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:02,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:02,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1257418459, now seen corresponding path program 1 times [2020-11-06 22:33:02,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:02,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424007096] [2020-11-06 22:33:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:02,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:02,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:02,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:33:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:02,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-06 22:33:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 88 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-11-06 22:33:02,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424007096] [2020-11-06 22:33:02,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968398471] [2020-11-06 22:33:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:02,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:33:02,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-06 22:33:02,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:33:02,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:33:02,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924277286] [2020-11-06 22:33:02,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:33:02,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:02,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:33:02,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:33:02,930 INFO L87 Difference]: Start difference. First operand 3499 states and 4619 transitions. Second operand 10 states. [2020-11-06 22:33:03,401 WARN L194 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-11-06 22:33:03,600 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-06 22:33:05,150 WARN L194 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2020-11-06 22:33:05,590 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:33:08,023 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-11-06 22:33:08,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:08,165 INFO L93 Difference]: Finished difference Result 8900 states and 11585 transitions. [2020-11-06 22:33:08,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-06 22:33:08,165 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-11-06 22:33:08,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:08,188 INFO L225 Difference]: With dead ends: 8900 [2020-11-06 22:33:08,188 INFO L226 Difference]: Without dead ends: 4811 [2020-11-06 22:33:08,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2020-11-06 22:33:08,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2020-11-06 22:33:08,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4626. [2020-11-06 22:33:08,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4626 states. [2020-11-06 22:33:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4626 states to 4626 states and 5378 transitions. [2020-11-06 22:33:08,338 INFO L78 Accepts]: Start accepts. Automaton has 4626 states and 5378 transitions. Word has length 208 [2020-11-06 22:33:08,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:08,338 INFO L481 AbstractCegarLoop]: Abstraction has 4626 states and 5378 transitions. [2020-11-06 22:33:08,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:33:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4626 states and 5378 transitions. [2020-11-06 22:33:08,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-11-06 22:33:08,352 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:08,352 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:08,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:08,568 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:08,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:08,569 INFO L82 PathProgramCache]: Analyzing trace with hash 69169815, now seen corresponding path program 1 times [2020-11-06 22:33:08,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:08,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847733107] [2020-11-06 22:33:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:08,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:08,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-06 22:33:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:08,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-11-06 22:33:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:08,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-11-06 22:33:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:08,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-11-06 22:33:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 144 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-06 22:33:08,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847733107] [2020-11-06 22:33:08,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104436027] [2020-11-06 22:33:08,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:09,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-06 22:33:09,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-06 22:33:09,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:33:09,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-11-06 22:33:09,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368105617] [2020-11-06 22:33:09,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:33:09,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:09,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:33:09,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:33:09,201 INFO L87 Difference]: Start difference. First operand 4626 states and 5378 transitions. Second operand 11 states. [2020-11-06 22:33:09,337 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-06 22:33:09,538 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-06 22:33:10,412 WARN L194 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-11-06 22:33:10,753 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-11-06 22:33:12,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:12,390 INFO L93 Difference]: Finished difference Result 8318 states and 9921 transitions. [2020-11-06 22:33:12,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-06 22:33:12,390 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 240 [2020-11-06 22:33:12,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:12,392 INFO L225 Difference]: With dead ends: 8318 [2020-11-06 22:33:12,392 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:33:12,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 261 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:33:12,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:33:12,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:33:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:33:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:33:12,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-11-06 22:33:12,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:12,412 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:33:12,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:33:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:33:12,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:33:12,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-06 22:33:12,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:33:13,707 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 132 [2020-11-06 22:33:14,010 WARN L194 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 132 [2020-11-06 22:33:14,244 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 38 [2020-11-06 22:33:16,099 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 190 DAG size of output: 67 [2020-11-06 22:33:16,730 WARN L194 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 57 [2020-11-06 22:33:17,480 WARN L194 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 57 [2020-11-06 22:33:17,885 WARN L194 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2020-11-06 22:33:17,889 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:33:17,890 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:33:17,890 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:33:17,890 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:33:17,890 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:33:17,891 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-11-06 22:33:17,891 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:33:17,891 INFO L266 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,891 INFO L266 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-11-06 22:33:17,892 INFO L266 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-11-06 22:33:17,893 INFO L266 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-11-06 22:33:17,893 INFO L266 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-11-06 22:33:17,894 INFO L266 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-11-06 22:33:17,894 INFO L266 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-11-06 22:33:17,895 INFO L266 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-11-06 22:33:17,895 INFO L266 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-11-06 22:33:17,895 INFO L266 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-11-06 22:33:17,895 INFO L266 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,895 INFO L266 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,895 INFO L266 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,895 INFO L266 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,896 INFO L266 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,897 INFO L266 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,897 INFO L266 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-11-06 22:33:17,897 INFO L266 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-11-06 22:33:17,897 INFO L266 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,899 INFO L266 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,900 INFO L266 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,900 INFO L266 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,900 INFO L266 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-11-06 22:33:17,900 INFO L266 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-11-06 22:33:17,900 INFO L266 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-11-06 22:33:17,900 INFO L266 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-11-06 22:33:17,901 INFO L266 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-11-06 22:33:17,902 INFO L266 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,903 INFO L266 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-11-06 22:33:17,904 INFO L266 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-11-06 22:33:17,905 INFO L266 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,906 INFO L266 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-11-06 22:33:17,907 INFO L266 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-11-06 22:33:17,907 INFO L266 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-11-06 22:33:17,907 INFO L262 CegarLoopResult]: At program point L517(line 517) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a7~0)| 0))) (.cse8 (not (= |old(~a21~0)| 1))) (.cse2 (not (<= 5 |old(~a16~0)|))) (.cse6 (not (= |old(~a17~0)| 1))) (.cse3 (not (<= |old(~a21~0)| 0))) (.cse10 (not (<= |old(~a16~0)| 5))) (.cse5 (not (<= |old(~a8~0)| 13))) (.cse7 (not (= |old(~a20~0)| 1))) (.cse9 (not (<= 14 |old(~a8~0)|))) (.cse4 (not (= |old(~a7~0)| 1))) (.cse1 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse2 .cse0 .cse7 .cse8) (or .cse3 .cse4 .cse1) (or .cse2 .cse9 .cse0) (or .cse6 .cse10 .cse5 .cse7 .cse8 .cse1) (or .cse2 .cse9 .cse10 .cse4) (or .cse6 .cse10 .cse4 .cse7 .cse1) (or .cse6 .cse3 .cse10 .cse4 .cse5 .cse7) (or .cse9 .cse4 .cse1))) [2020-11-06 22:33:17,907 INFO L266 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-11-06 22:33:17,907 INFO L266 CegarLoopResult]: For program point L517-1(line 517) no Hoare annotation was computed. [2020-11-06 22:33:17,907 INFO L266 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-11-06 22:33:17,908 INFO L266 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse17 (= ~a16~0 4)) (.cse12 (= ~a7~0 |old(~a7~0)|)) (.cse13 (= ~a17~0 |old(~a17~0)|)) (.cse20 (= ~a21~0 |old(~a21~0)|)) (.cse15 (= ~a20~0 |old(~a20~0)|)) (.cse19 (= ~a16~0 |old(~a16~0)|)) (.cse16 (= ~a8~0 |old(~a8~0)|))) (let ((.cse1 (not (<= 14 |old(~a8~0)|))) (.cse4 (and .cse12 .cse13 .cse20 .cse15 .cse19 .cse16)) (.cse2 (not (<= |old(~a16~0)| 5))) (.cse10 (not (<= |old(~a8~0)| 13))) (.cse9 (not (<= |old(~a21~0)| 0))) (.cse3 (not (= |old(~a7~0)| 1))) (.cse5 (and .cse12 .cse13 .cse20 .cse15 .cse16 .cse17)) (.cse6 (not (= 4 |old(~a16~0)|))) (.cse7 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= 5 |old(~a16~0)|))) (.cse11 (not (<= |old(~a7~0)| 0))) (.cse8 (not (= |old(~a20~0)| 1))) (.cse14 (= ~a21~0 1)) (.cse18 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse3 .cse5 .cse6) (or .cse7 .cse2 .cse3 .cse8 .cse5 .cse6) (or .cse0 .cse9 .cse3 .cse10 .cse4) (or .cse0 .cse1 .cse11 .cse4) (or .cse7 .cse9 .cse2 .cse3 .cse10 .cse8 .cse4) (or .cse11 .cse5 .cse6) (or .cse7 (and .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) .cse2 .cse10 .cse8 .cse18 .cse6) (or .cse9 .cse3 .cse5 .cse6) (or .cse7 .cse0 .cse11 .cse8 (and .cse12 .cse13 .cse14 .cse15 .cse19 .cse16) .cse18)))) [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,909 INFO L266 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,910 INFO L266 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-11-06 22:33:17,911 INFO L266 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-11-06 22:33:17,912 INFO L266 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:33:17,913 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (<= ~a7~0 0) (= ~a20~0 1) (<= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-11-06 22:33:17,913 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:33:17,913 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:33:17,914 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) (not (= |old(~a21~0)| 1))) [2020-11-06 22:33:17,914 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-11-06 22:33:17,914 INFO L262 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse5 (<= 14 ~a8~0)) (.cse3 (<= 5 ~a16~0)) (.cse1 (<= ~a7~0 0)) (.cse7 (= ~a16~0 4)) (.cse6 (= ~a7~0 1)) (.cse8 (<= ~a21~0 0)) (.cse2 (= ~a20~0 1)) (.cse4 (= ~a17~0 1)) (.cse9 (<= ~a8~0 13))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7) (not (<= |old(~a7~0)| 0)) (and .cse5 .cse6 (<= ~a16~0 5) .cse3) (and .cse6 .cse8 .cse3 .cse9) (not (= |old(~a20~0)| 1)) (and .cse6 .cse2 .cse7 .cse4) (and .cse0 .cse2 .cse7 .cse4 .cse9) (not (= |old(~a21~0)| 1)) (and .cse5 .cse1 .cse3) (not (= |old(~a17~0)| 1)) (and .cse1 .cse7) (and .cse6 .cse8 .cse7) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse6 .cse8 .cse2 .cse4 .cse9))) [2020-11-06 22:33:17,914 INFO L266 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-11-06 22:33:17,914 INFO L266 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-06 22:33:17,914 INFO L262 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse5 (<= 14 ~a8~0)) (.cse3 (<= 5 ~a16~0)) (.cse1 (<= ~a7~0 0)) (.cse7 (= ~a16~0 4)) (.cse6 (= ~a7~0 1)) (.cse8 (<= ~a21~0 0)) (.cse2 (= ~a20~0 1)) (.cse4 (= ~a17~0 1)) (.cse9 (<= ~a8~0 13))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7) (not (<= |old(~a7~0)| 0)) (and .cse5 .cse6 (<= ~a16~0 5) .cse3) (and .cse6 .cse8 .cse3 .cse9) (not (= |old(~a20~0)| 1)) (and .cse6 .cse2 .cse7 .cse4) (and .cse0 .cse2 .cse7 .cse4 .cse9) (not (= |old(~a21~0)| 1)) (and .cse5 .cse1 .cse3) (not (= |old(~a17~0)| 1)) (and .cse1 .cse7) (and .cse6 .cse8 .cse7) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse6 .cse8 .cse2 .cse4 .cse9))) [2020-11-06 22:33:17,914 INFO L266 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-11-06 22:33:17,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:33:17 BoogieIcfgContainer [2020-11-06 22:33:17,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:33:17,945 INFO L168 Benchmark]: Toolchain (without parser) took 40966.82 ms. Allocated memory was 157.3 MB in the beginning and 576.7 MB in the end (delta: 419.4 MB). Free memory was 131.9 MB in the beginning and 355.4 MB in the end (delta: -223.6 MB). Peak memory consumption was 347.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:33:17,945 INFO L168 Benchmark]: CDTParser took 1.35 ms. Allocated memory is still 125.8 MB. Free memory was 103.6 MB in the beginning and 103.5 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:33:17,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.93 ms. Allocated memory is still 157.3 MB. Free memory was 131.2 MB in the beginning and 135.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:33:17,947 INFO L168 Benchmark]: Boogie Preprocessor took 150.30 ms. Allocated memory is still 157.3 MB. Free memory was 135.2 MB in the beginning and 130.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:33:17,947 INFO L168 Benchmark]: RCFGBuilder took 1447.88 ms. Allocated memory is still 157.3 MB. Free memory was 130.4 MB in the beginning and 122.1 MB in the end (delta: 8.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:33:17,948 INFO L168 Benchmark]: TraceAbstraction took 38645.33 ms. Allocated memory was 157.3 MB in the beginning and 576.7 MB in the end (delta: 419.4 MB). Free memory was 121.6 MB in the beginning and 355.4 MB in the end (delta: -233.8 MB). Peak memory consumption was 336.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:33:17,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35 ms. Allocated memory is still 125.8 MB. Free memory was 103.6 MB in the beginning and 103.5 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 704.93 ms. Allocated memory is still 157.3 MB. Free memory was 131.2 MB in the beginning and 135.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 150.30 ms. Allocated memory is still 157.3 MB. Free memory was 135.2 MB in the beginning and 130.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1447.88 ms. Allocated memory is still 157.3 MB. Free memory was 130.4 MB in the beginning and 122.1 MB in the end (delta: 8.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 38645.33 ms. Allocated memory was 157.3 MB in the beginning and 576.7 MB in the end (delta: 419.4 MB). Free memory was 121.6 MB in the beginning and 355.4 MB in the end (delta: -233.8 MB). Peak memory consumption was 336.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((((!(5 <= \old(a16)) || ((((a21 == 1 && a7 <= 0) && a20 == 1) && 5 <= a16) && a17 == 1)) || ((14 <= a8 && a7 == 1) && a16 == 4)) || !(\old(a7) <= 0)) || (((14 <= a8 && a7 == 1) && a16 <= 5) && 5 <= a16)) || (((a7 == 1 && a21 <= 0) && 5 <= a16) && a8 <= 13)) || !(\old(a20) == 1)) || (((a7 == 1 && a20 == 1) && a16 == 4) && a17 == 1)) || ((((a21 == 1 && a20 == 1) && a16 == 4) && a17 == 1) && a8 <= 13)) || !(\old(a21) == 1)) || ((14 <= a8 && a7 <= 0) && 5 <= a16)) || !(\old(a17) == 1)) || (a7 <= 0 && a16 == 4)) || ((a7 == 1 && a21 <= 0) && a16 == 4)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || ((((a7 == 1 && a21 <= 0) && a20 == 1) && a17 == 1) && a8 <= 13) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 33.2s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 24.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 365 SDtfs, 5829 SDslu, 535 SDs, 0 SdLazy, 10718 SolverSat, 2055 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1479 GetRequests, 1340 SyntacticMatches, 4 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4626occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1132 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 440 PreInvPairs, 540 NumberOfFragments, 1006 HoareAnnotationTreeSize, 440 FomulaSimplifications, 233625 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 12434 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2895 NumberOfCodeBlocks, 2895 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2878 ConstructedInterpolants, 0 QuantifiedInterpolants, 1404424 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3924 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 1135/1249 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...