/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/loops/n.c40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 12:12:44,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 12:12:44,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 12:12:44,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 12:12:44,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 12:12:44,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 12:12:44,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 12:12:44,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 12:12:44,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 12:12:44,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 12:12:44,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 12:12:44,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 12:12:44,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 12:12:44,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 12:12:44,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 12:12:44,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 12:12:44,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 12:12:44,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 12:12:44,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 12:12:44,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 12:12:44,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 12:12:44,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 12:12:44,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 12:12:44,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 12:12:44,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 12:12:44,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 12:12:44,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 12:12:44,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 12:12:44,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 12:12:44,514 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 12:12:44,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 12:12:44,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 12:12:44,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 12:12:44,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 12:12:44,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 12:12:44,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 12:12:44,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 12:12:44,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 12:12:44,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 12:12:44,517 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 12:12:44,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 12:12:44,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 12:12:44,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 12:12:44,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 12:12:44,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 12:12:44,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 12:12:44,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 12:12:44,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 12:12:44,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 12:12:44,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 12:12:44,518 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 12:12:44,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 12:12:44,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 12:12:44,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 12:12:44,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 12:12:44,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 12:12:44,737 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 12:12:44,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40.c [2022-01-31 12:12:44,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788b90c11/7d3d45b5b5db43bdad54f9ad2d28c344/FLAGb6fcc1d61 [2022-01-31 12:12:45,120 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 12:12:45,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c [2022-01-31 12:12:45,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788b90c11/7d3d45b5b5db43bdad54f9ad2d28c344/FLAGb6fcc1d61 [2022-01-31 12:12:45,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788b90c11/7d3d45b5b5db43bdad54f9ad2d28c344 [2022-01-31 12:12:45,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 12:12:45,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 12:12:45,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 12:12:45,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 12:12:45,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 12:12:45,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c40b0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45, skipping insertion in model container [2022-01-31 12:12:45,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 12:12:45,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 12:12:45,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c[498,511] [2022-01-31 12:12:45,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 12:12:45,725 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 12:12:45,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c[498,511] [2022-01-31 12:12:45,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 12:12:45,745 INFO L208 MainTranslator]: Completed translation [2022-01-31 12:12:45,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45 WrapperNode [2022-01-31 12:12:45,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 12:12:45,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 12:12:45,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 12:12:45,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 12:12:45,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 12:12:45,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 12:12:45,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 12:12:45,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 12:12:45,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:45,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 12:12:45,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 12:12:45,800 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) [2022-01-31 12:12:45,803 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 [2022-01-31 12:12:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 12:12:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 12:12:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 12:12:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 12:12:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 12:12:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 12:12:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 12:12:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 12:12:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 12:12:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 12:12:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 12:12:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 12:12:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 12:12:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 12:12:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 12:12:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 12:12:45,888 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 12:12:45,889 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 12:12:45,978 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 12:12:45,982 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 12:12:45,982 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 12:12:45,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:12:45 BoogieIcfgContainer [2022-01-31 12:12:45,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 12:12:45,984 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 12:12:45,984 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 12:12:45,996 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 12:12:45,998 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:12:45" (1/1) ... [2022-01-31 12:12:46,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 12:12:46 BasicIcfg [2022-01-31 12:12:46,009 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 12:12:46,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 12:12:46,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 12:12:46,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 12:12:46,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 12:12:45" (1/4) ... [2022-01-31 12:12:46,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350417f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 12:12:46, skipping insertion in model container [2022-01-31 12:12:46,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:12:45" (2/4) ... [2022-01-31 12:12:46,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350417f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 12:12:46, skipping insertion in model container [2022-01-31 12:12:46,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:12:45" (3/4) ... [2022-01-31 12:12:46,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350417f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 12:12:46, skipping insertion in model container [2022-01-31 12:12:46,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 12:12:46" (4/4) ... [2022-01-31 12:12:46,044 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.cJordan [2022-01-31 12:12:46,048 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 12:12:46,048 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 12:12:46,106 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 12:12:46,136 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 12:12:46,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 12:12:46,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 12:12:46,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-31 12:12:46,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 12:12:46,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 12:12:46,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 12:12:46,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 12:12:46,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1525854499, now seen corresponding path program 1 times [2022-01-31 12:12:46,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 12:12:46,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410816920] [2022-01-31 12:12:46,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 12:12:46,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 12:12:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:12:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 12:12:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:12:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:12:46,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 12:12:46,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410816920] [2022-01-31 12:12:46,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410816920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 12:12:46,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 12:12:46,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 12:12:46,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689445081] [2022-01-31 12:12:46,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 12:12:46,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 12:12:46,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 12:12:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 12:12:46,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 12:12:46,458 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:12:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 12:12:46,500 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-01-31 12:12:46,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 12:12:46,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-01-31 12:12:46,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 12:12:46,516 INFO L225 Difference]: With dead ends: 18 [2022-01-31 12:12:46,516 INFO L226 Difference]: Without dead ends: 13 [2022-01-31 12:12:46,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 12:12:46,524 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 12:12:46,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 12:12:46,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-31 12:12:46,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-01-31 12:12:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:12:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-01-31 12:12:46,551 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-01-31 12:12:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 12:12:46,552 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-01-31 12:12:46,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:12:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-01-31 12:12:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-31 12:12:46,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 12:12:46,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 12:12:46,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 12:12:46,554 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 12:12:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 12:12:46,557 INFO L85 PathProgramCache]: Analyzing trace with hash 86310556, now seen corresponding path program 1 times [2022-01-31 12:12:46,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 12:12:46,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132940645] [2022-01-31 12:12:46,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 12:12:46,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 12:12:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:12:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 12:12:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:12:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:12:46,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 12:12:46,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132940645] [2022-01-31 12:12:46,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132940645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 12:12:46,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 12:12:46,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 12:12:46,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929298077] [2022-01-31 12:12:46,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 12:12:46,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 12:12:46,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 12:12:46,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 12:12:46,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 12:12:46,672 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:12:46,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 12:12:46,734 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-01-31 12:12:46,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 12:12:46,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-01-31 12:12:46,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 12:12:46,736 INFO L225 Difference]: With dead ends: 17 [2022-01-31 12:12:46,736 INFO L226 Difference]: Without dead ends: 15 [2022-01-31 12:12:46,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 12:12:46,737 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 12:12:46,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 12:12:46,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-01-31 12:12:46,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-01-31 12:12:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:12:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-01-31 12:12:46,747 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2022-01-31 12:12:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 12:12:46,748 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-01-31 12:12:46,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:12:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-01-31 12:12:46,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-31 12:12:46,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 12:12:46,749 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 12:12:46,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 12:12:46,751 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 12:12:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 12:12:46,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2098026081, now seen corresponding path program 1 times [2022-01-31 12:12:46,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 12:12:46,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089131772] [2022-01-31 12:12:46,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 12:12:46,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 12:12:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:12:46,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 12:12:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:12:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:12:46,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 12:12:46,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089131772] [2022-01-31 12:12:46,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089131772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 12:12:46,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 12:12:46,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 12:12:46,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298187923] [2022-01-31 12:12:46,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 12:12:46,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 12:12:46,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 12:12:46,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 12:12:46,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-31 12:12:46,983 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:12:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 12:12:47,034 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-01-31 12:12:47,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 12:12:47,034 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-01-31 12:12:47,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 12:12:47,035 INFO L225 Difference]: With dead ends: 8 [2022-01-31 12:12:47,035 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 12:12:47,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-31 12:12:47,036 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 12:12:47,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 12:12:47,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 12:12:47,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 12:12:47,038 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) [2022-01-31 12:12:47,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 12:12:47,038 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-01-31 12:12:47,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 12:12:47,038 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 12:12:47,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:12:47,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 12:12:47,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 12:12:47,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 12:12:47,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 12:12:47,044 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 12:12:47,045 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 12:12:47,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 12:12:47 BasicIcfg [2022-01-31 12:12:47,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 12:12:47,048 INFO L158 Benchmark]: Toolchain (without parser) took 1493.24ms. Allocated memory is still 197.1MB. Free memory was 142.7MB in the beginning and 104.3MB in the end (delta: 38.4MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-01-31 12:12:47,049 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 197.1MB. Free memory was 159.0MB in the beginning and 158.8MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 12:12:47,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.15ms. Allocated memory is still 197.1MB. Free memory was 142.5MB in the beginning and 168.1MB in the end (delta: -25.7MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2022-01-31 12:12:47,049 INFO L158 Benchmark]: Boogie Preprocessor took 20.57ms. Allocated memory is still 197.1MB. Free memory was 168.1MB in the beginning and 166.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 12:12:47,050 INFO L158 Benchmark]: RCFGBuilder took 216.01ms. Allocated memory is still 197.1MB. Free memory was 166.7MB in the beginning and 156.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-31 12:12:47,050 INFO L158 Benchmark]: IcfgTransformer took 25.73ms. Allocated memory is still 197.1MB. Free memory was 156.2MB in the beginning and 155.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 12:12:47,050 INFO L158 Benchmark]: TraceAbstraction took 1037.38ms. Allocated memory is still 197.1MB. Free memory was 154.6MB in the beginning and 104.3MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2022-01-31 12:12:47,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 197.1MB. Free memory was 159.0MB in the beginning and 158.8MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 186.15ms. Allocated memory is still 197.1MB. Free memory was 142.5MB in the beginning and 168.1MB in the end (delta: -25.7MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.57ms. Allocated memory is still 197.1MB. Free memory was 168.1MB in the beginning and 166.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 216.01ms. Allocated memory is still 197.1MB. Free memory was 166.7MB in the beginning and 156.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 25.73ms. Allocated memory is still 197.1MB. Free memory was 156.2MB in the beginning and 155.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1037.38ms. Allocated memory is still 197.1MB. Free memory was 154.6MB in the beginning and 104.3MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. 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: 22]: 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 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 32 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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! [2022-01-31 12:12:47,106 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...