/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-invgen/MADWiFi-encode_ie_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 04:47:41,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 04:47:41,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 04:47:41,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-06 04:47:41,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 04:47:41,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 04:47:41,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 04:47:41,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 04:47:41,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 04:47:41,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 04:47:41,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 04:47:41,585 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 04:47:41,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 04:47:41,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 04:47:41,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 04:47:41,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 04:47:41,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 04:47:41,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 04:47:41,586 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 04:47:41,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 04:47:41,587 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 04:47:41,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 04:47:41,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 04:47:41,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 04:47:41,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 04:47:41,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 04:47:41,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 04:47:41,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 04:47:41,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 04:47:41,588 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 04:47:41,588 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 04:47:41,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 04:47:41,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 04:47:41,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 04:47:41,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 04:47:41,799 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 04:47:41,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/MADWiFi-encode_ie_ok.i [2022-04-06 04:47:41,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f80a49a/f32236fa011247f7821351124cab5558/FLAGc89f13a68 [2022-04-06 04:47:42,156 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 04:47:42,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/MADWiFi-encode_ie_ok.i [2022-04-06 04:47:42,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f80a49a/f32236fa011247f7821351124cab5558/FLAGc89f13a68 [2022-04-06 04:47:42,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f80a49a/f32236fa011247f7821351124cab5558 [2022-04-06 04:47:42,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 04:47:42,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 04:47:42,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 04:47:42,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 04:47:42,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 04:47:42,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56baa83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42, skipping insertion in model container [2022-04-06 04:47:42,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 04:47:42,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 04:47:42,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/MADWiFi-encode_ie_ok.i[893,906] [2022-04-06 04:47:42,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 04:47:42,788 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 04:47:42,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/MADWiFi-encode_ie_ok.i[893,906] [2022-04-06 04:47:42,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 04:47:42,829 INFO L208 MainTranslator]: Completed translation [2022-04-06 04:47:42,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42 WrapperNode [2022-04-06 04:47:42,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 04:47:42,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 04:47:42,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 04:47:42,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 04:47:42,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 04:47:42,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 04:47:42,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 04:47:42,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 04:47:42,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (1/1) ... [2022-04-06 04:47:42,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 04:47:42,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 04:47:42,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 04:47:42,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 04:47:43,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 04:47:43,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 04:47:43,010 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 04:47:43,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-06 04:47:43,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-06 04:47:43,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 04:47:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 04:47:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 04:47:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-06 04:47:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-06 04:47:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 04:47:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 04:47:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-06 04:47:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 04:47:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 04:47:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 04:47:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 04:47:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 04:47:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 04:47:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 04:47:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 04:47:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 04:47:43,118 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 04:47:43,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 04:47:43,218 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 04:47:43,243 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 04:47:43,243 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 04:47:43,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:47:43 BoogieIcfgContainer [2022-04-06 04:47:43,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 04:47:43,246 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 04:47:43,247 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 04:47:43,247 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 04:47:43,249 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:47:43" (1/1) ... [2022-04-06 04:47:43,251 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 04:47:43,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 04:47:43 BasicIcfg [2022-04-06 04:47:43,263 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 04:47:43,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 04:47:43,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 04:47:43,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 04:47:43,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 04:47:42" (1/4) ... [2022-04-06 04:47:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb4224b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 04:47:43, skipping insertion in model container [2022-04-06 04:47:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:47:42" (2/4) ... [2022-04-06 04:47:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb4224b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 04:47:43, skipping insertion in model container [2022-04-06 04:47:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:47:43" (3/4) ... [2022-04-06 04:47:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb4224b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 04:47:43, skipping insertion in model container [2022-04-06 04:47:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 04:47:43" (4/4) ... [2022-04-06 04:47:43,271 INFO L111 eAbstractionObserver]: Analyzing ICFG MADWiFi-encode_ie_ok.iJordan [2022-04-06 04:47:43,274 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 04:47:43,274 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 04:47:43,299 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 04:47:43,303 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 04:47:43,303 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 04:47:43,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-06 04:47:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-06 04:47:43,317 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:47:43,317 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:47:43,317 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:47:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:47:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1231819666, now seen corresponding path program 1 times [2022-04-06 04:47:43,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:47:43,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733214971] [2022-04-06 04:47:43,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:47:43,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:47:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:47:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:47:43,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:47:43,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733214971] [2022-04-06 04:47:43,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733214971] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 04:47:43,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 04:47:43,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 04:47:43,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76648118] [2022-04-06 04:47:43,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 04:47:43,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 04:47:43,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:47:43,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 04:47:43,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 04:47:43,581 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 04:47:43,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:47:43,723 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-04-06 04:47:43,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 04:47:43,725 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-04-06 04:47:43,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:47:43,730 INFO L225 Difference]: With dead ends: 37 [2022-04-06 04:47:43,730 INFO L226 Difference]: Without dead ends: 29 [2022-04-06 04:47:43,732 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-04-06 04:47:43,736 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 50 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 04:47:43,737 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 60 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 04:47:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-04-06 04:47:43,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-04-06 04:47:43,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 04:47:43,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-04-06 04:47:43,758 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 19 [2022-04-06 04:47:43,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:47:43,759 INFO L478 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-04-06 04:47:43,759 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 04:47:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-04-06 04:47:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-06 04:47:43,760 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:47:43,760 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:47:43,760 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 04:47:43,760 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:47:43,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:47:43,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1598286936, now seen corresponding path program 1 times [2022-04-06 04:47:43,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:47:43,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412944868] [2022-04-06 04:47:43,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:47:43,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:47:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:43,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:47:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-04-06 04:47:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:47:43,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:47:43,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412944868] [2022-04-06 04:47:43,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412944868] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 04:47:43,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 04:47:43,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 04:47:43,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228918079] [2022-04-06 04:47:43,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 04:47:43,827 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 04:47:43,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:47:43,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 04:47:43,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 04:47:43,828 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-06 04:47:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:47:43,919 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2022-04-06 04:47:43,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 04:47:43,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-04-06 04:47:43,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:47:43,920 INFO L225 Difference]: With dead ends: 37 [2022-04-06 04:47:43,921 INFO L226 Difference]: Without dead ends: 37 [2022-04-06 04:47:43,921 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-04-06 04:47:43,922 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 23 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 04:47:43,922 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 44 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 04:47:43,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-04-06 04:47:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2022-04-06 04:47:43,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-06 04:47:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2022-04-06 04:47:43,928 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 24 [2022-04-06 04:47:43,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:47:43,929 INFO L478 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2022-04-06 04:47:43,929 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-06 04:47:43,929 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2022-04-06 04:47:43,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-06 04:47:43,930 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:47:43,930 INFO L499 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:47:43,930 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 04:47:43,930 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:47:43,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:47:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1081273981, now seen corresponding path program 1 times [2022-04-06 04:47:43,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:47:43,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374305962] [2022-04-06 04:47:43,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:47:43,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:47:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:44,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:47:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:44,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-04-06 04:47:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:44,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-06 04:47:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-04-06 04:47:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-06 04:47:44,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:47:44,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374305962] [2022-04-06 04:47:44,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374305962] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 04:47:44,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206057788] [2022-04-06 04:47:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:47:44,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 04:47:44,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 04:47:44,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 04:47:44,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 04:47:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:44,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-06 04:47:44,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 04:47:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-06 04:47:44,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 04:47:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-06 04:47:44,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206057788] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 04:47:44,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 04:47:44,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2022-04-06 04:47:44,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005879171] [2022-04-06 04:47:44,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 04:47:44,621 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-04-06 04:47:44,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:47:44,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-04-06 04:47:44,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2022-04-06 04:47:44,622 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 19 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 5 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-04-06 04:47:44,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:47:44,888 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2022-04-06 04:47:44,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-06 04:47:44,889 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 5 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 37 [2022-04-06 04:47:44,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:47:44,890 INFO L225 Difference]: With dead ends: 51 [2022-04-06 04:47:44,890 INFO L226 Difference]: Without dead ends: 51 [2022-04-06 04:47:44,890 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 71 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2022-04-06 04:47:44,891 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 04:47:44,891 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 65 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 04:47:44,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-04-06 04:47:44,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2022-04-06 04:47:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 35 states have internal predecessors, (35), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-06 04:47:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-04-06 04:47:44,896 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 37 [2022-04-06 04:47:44,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:47:44,896 INFO L478 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-04-06 04:47:44,896 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 5 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-04-06 04:47:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-04-06 04:47:44,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 04:47:44,901 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:47:44,901 INFO L499 BasicCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:47:44,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-06 04:47:45,117 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 04:47:45,118 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:47:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:47:45,119 INFO L85 PathProgramCache]: Analyzing trace with hash 59588189, now seen corresponding path program 2 times [2022-04-06 04:47:45,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:47:45,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792171166] [2022-04-06 04:47:45,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:47:45,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:47:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:47:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-04-06 04:47:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-06 04:47:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-04-06 04:47:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-04-06 04:47:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-04-06 04:47:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-04-06 04:47:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-04-06 04:47:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:47:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 14 proven. 17 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-04-06 04:47:45,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:47:45,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792171166] [2022-04-06 04:47:45,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792171166] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 04:47:45,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891509081] [2022-04-06 04:47:45,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 04:47:45,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 04:47:45,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 04:47:45,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 04:47:45,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 04:47:45,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 04:47:45,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 04:47:45,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-06 04:47:45,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 04:47:45,613 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-04-06 04:47:45,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 04:47:45,896 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-04-06 04:47:45,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891509081] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 04:47:45,897 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 04:47:45,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 28 [2022-04-06 04:47:45,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731550359] [2022-04-06 04:47:45,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 04:47:45,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-04-06 04:47:45,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:47:45,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-04-06 04:47:45,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2022-04-06 04:47:45,899 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 28 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 10 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-04-06 04:47:46,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:47:46,269 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-04-06 04:47:46,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-06 04:47:46,270 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 10 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 63 [2022-04-06 04:47:46,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:47:46,270 INFO L225 Difference]: With dead ends: 54 [2022-04-06 04:47:46,270 INFO L226 Difference]: Without dead ends: 0 [2022-04-06 04:47:46,271 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=396, Invalid=1674, Unknown=0, NotChecked=0, Total=2070 [2022-04-06 04:47:46,272 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 49 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 04:47:46,272 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 77 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 04:47:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-06 04:47:46,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-06 04:47:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-06 04:47:46,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-06 04:47:46,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2022-04-06 04:47:46,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:47:46,273 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-06 04:47:46,273 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 25 states have internal predecessors, (50), 10 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-04-06 04:47:46,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-06 04:47:46,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-06 04:47:46,276 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 04:47:46,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-06 04:47:46,486 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-04-06 04:47:46,489 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-04-06 04:47:46,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 04:47:46,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 04:47:46 BasicIcfg [2022-04-06 04:47:46,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 04:47:46,493 INFO L158 Benchmark]: Toolchain (without parser) took 3911.37ms. Allocated memory was 175.1MB in the beginning and 243.3MB in the end (delta: 68.2MB). Free memory was 119.0MB in the beginning and 186.6MB in the end (delta: -67.6MB). Peak memory consumption was 865.9kB. Max. memory is 8.0GB. [2022-04-06 04:47:46,493 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 134.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 04:47:46,494 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.15ms. Allocated memory was 175.1MB in the beginning and 243.3MB in the end (delta: 68.2MB). Free memory was 118.7MB in the beginning and 215.3MB in the end (delta: -96.5MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2022-04-06 04:47:46,494 INFO L158 Benchmark]: Boogie Preprocessor took 49.08ms. Allocated memory is still 243.3MB. Free memory was 215.3MB in the beginning and 213.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-06 04:47:46,495 INFO L158 Benchmark]: RCFGBuilder took 364.83ms. Allocated memory is still 243.3MB. Free memory was 213.8MB in the beginning and 202.2MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-06 04:47:46,495 INFO L158 Benchmark]: IcfgTransformer took 17.06ms. Allocated memory is still 243.3MB. Free memory was 202.2MB in the beginning and 200.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-06 04:47:46,495 INFO L158 Benchmark]: TraceAbstraction took 3227.85ms. Allocated memory is still 243.3MB. Free memory was 200.2MB in the beginning and 186.6MB in the end (delta: 13.5MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2022-04-06 04:47:46,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 134.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 247.15ms. Allocated memory was 175.1MB in the beginning and 243.3MB in the end (delta: 68.2MB). Free memory was 118.7MB in the beginning and 215.3MB in the end (delta: -96.5MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.08ms. Allocated memory is still 243.3MB. Free memory was 215.3MB in the beginning and 213.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 364.83ms. Allocated memory is still 243.3MB. Free memory was 213.8MB in the beginning and 202.2MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 17.06ms. Allocated memory is still 243.3MB. Free memory was 202.2MB in the beginning and 200.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 3227.85ms. Allocated memory is still 243.3MB. Free memory was 200.2MB in the beginning and 186.6MB in the end (delta: 13.5MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 143 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 871 IncrementalHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 103 mSDtfsCounter, 871 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 204 SyntacticMatches, 6 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=3, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 335 ConstructedInterpolants, 0 QuantifiedInterpolants, 1211 SizeOfPredicates, 16 NumberOfNonLiveVariables, 262 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 357/431 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-06 04:47:46,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...