/usr/bin/java -ea -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/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-14 18:57:43,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-14 18:57:43,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-14 18:57:43,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-14 18:57:43,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-14 18:57:43,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-14 18:57:43,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-14 18:57:43,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-14 18:57:43,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-14 18:57:43,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-14 18:57:43,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-14 18:57:43,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-14 18:57:43,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-14 18:57:43,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-14 18:57:43,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-14 18:57:43,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-14 18:57:43,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-14 18:57:43,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-14 18:57:43,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-14 18:57:43,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-14 18:57:43,855 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-14 18:57:43,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-14 18:57:43,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-14 18:57:43,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-14 18:57:43,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-14 18:57:43,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-14 18:57:43,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-14 18:57:43,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-14 18:57:43,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-14 18:57:43,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-14 18:57:43,886 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-14 18:57:43,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-14 18:57:43,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-14 18:57:43,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-14 18:57:43,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-14 18:57:43,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-14 18:57:43,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-14 18:57:43,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-14 18:57:43,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-14 18:57:43,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-14 18:57:43,889 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-14 18:57:43,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-14 18:57:43,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-14 18:57:43,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-14 18:57:43,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-14 18:57:43,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-14 18:57:43,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-14 18:57:43,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-14 18:57:43,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 18:57:43,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-14 18:57:43,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-14 18:57:43,890 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-14 18:57:43,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-14 18:57:44,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-14 18:57:44,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-14 18:57:44,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-14 18:57:44,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-14 18:57:44,115 INFO L275 PluginConnector]: CDTParser initialized [2022-04-14 18:57:44,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2022-04-14 18:57:44,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4032a59f/f3c91cb09a7e499990cc5e3fd20be73e/FLAG934166673 [2022-04-14 18:57:44,530 INFO L306 CDTParser]: Found 1 translation units. [2022-04-14 18:57:44,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-1.c [2022-04-14 18:57:44,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4032a59f/f3c91cb09a7e499990cc5e3fd20be73e/FLAG934166673 [2022-04-14 18:57:44,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4032a59f/f3c91cb09a7e499990cc5e3fd20be73e [2022-04-14 18:57:44,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-14 18:57:44,551 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-14 18:57:44,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-14 18:57:44,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-14 18:57:44,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-14 18:57:44,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@468763f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44, skipping insertion in model container [2022-04-14 18:57:44,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-14 18:57:44,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-14 18:57:44,718 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/terminator_02-1.c[327,340] [2022-04-14 18:57:44,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 18:57:44,741 INFO L203 MainTranslator]: Completed pre-run [2022-04-14 18:57:44,751 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/terminator_02-1.c[327,340] [2022-04-14 18:57:44,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 18:57:44,765 INFO L208 MainTranslator]: Completed translation [2022-04-14 18:57:44,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44 WrapperNode [2022-04-14 18:57:44,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-14 18:57:44,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-14 18:57:44,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-14 18:57:44,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-14 18:57:44,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-14 18:57:44,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-14 18:57:44,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-14 18:57:44,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-14 18:57:44,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (1/1) ... [2022-04-14 18:57:44,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 18:57:44,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 18:57:44,827 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) [2022-04-14 18:57:44,834 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 [2022-04-14 18:57:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-14 18:57:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-14 18:57:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-14 18:57:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-14 18:57:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-14 18:57:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-14 18:57:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-14 18:57:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-14 18:57:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-14 18:57:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-14 18:57:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-14 18:57:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-14 18:57:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-14 18:57:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-14 18:57:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-14 18:57:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-14 18:57:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-14 18:57:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-14 18:57:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-14 18:57:44,908 INFO L234 CfgBuilder]: Building ICFG [2022-04-14 18:57:44,910 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-14 18:57:45,063 INFO L275 CfgBuilder]: Performing block encoding [2022-04-14 18:57:45,068 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-14 18:57:45,068 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-14 18:57:45,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:57:45 BoogieIcfgContainer [2022-04-14 18:57:45,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-14 18:57:45,071 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-14 18:57:45,071 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-14 18:57:45,072 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-14 18:57:45,078 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:57:45" (1/1) ... [2022-04-14 18:57:45,080 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-14 18:57:45,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 06:57:45 BasicIcfg [2022-04-14 18:57:45,095 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-14 18:57:45,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-14 18:57:45,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-14 18:57:45,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-14 18:57:45,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 06:57:44" (1/4) ... [2022-04-14 18:57:45,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eed3127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 06:57:45, skipping insertion in model container [2022-04-14 18:57:45,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 06:57:44" (2/4) ... [2022-04-14 18:57:45,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eed3127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 06:57:45, skipping insertion in model container [2022-04-14 18:57:45,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 06:57:45" (3/4) ... [2022-04-14 18:57:45,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eed3127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 06:57:45, skipping insertion in model container [2022-04-14 18:57:45,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 06:57:45" (4/4) ... [2022-04-14 18:57:45,101 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-1.cJordan [2022-04-14 18:57:45,105 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-14 18:57:45,105 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-14 18:57:45,137 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-14 18:57:45,141 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 [2022-04-14 18:57:45,142 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-14 18:57:45,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 18:57:45,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-14 18:57:45,175 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:57:45,175 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:57:45,175 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:57:45,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:57:45,194 INFO L85 PathProgramCache]: Analyzing trace with hash -154368955, now seen corresponding path program 1 times [2022-04-14 18:57:45,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:57:45,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009654961] [2022-04-14 18:57:45,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:45,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:57:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:45,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 18:57:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 18:57:45,364 INFO L290 TraceCheckUtils]: 0: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [48] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-14 18:57:45,364 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} [51] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:45,364 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} [66] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:45,366 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} [46] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 18:57:45,368 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [48] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-14 18:57:45,368 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} [51] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:45,369 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} [66] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:45,369 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} [47] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-14 18:57:45,369 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} [50] mainENTRY-->L23-2: Formula: (and (= v_main_~z~0_3 |v_main_#t~nondet6_2|) (<= |v_main_#t~nondet5_2| 2147483647) (<= |v_main_#t~nondet6_2| 2147483647) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (= v_main_~x~0_3 |v_main_#t~nondet4_2|) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_3, main_~z~0=v_main_~z~0_3} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~y~0] {23#true} is VALID [2022-04-14 18:57:45,370 INFO L290 TraceCheckUtils]: 6: Hoare triple {23#true} [52] L23-2-->L20-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-14 18:57:45,370 INFO L272 TraceCheckUtils]: 7: Hoare triple {24#false} [55] L20-2-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| 0) InVars {} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond] {24#false} is VALID [2022-04-14 18:57:45,370 INFO L290 TraceCheckUtils]: 8: Hoare triple {24#false} [59] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {24#false} is VALID [2022-04-14 18:57:45,370 INFO L290 TraceCheckUtils]: 9: Hoare triple {24#false} [61] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-14 18:57:45,371 INFO L290 TraceCheckUtils]: 10: Hoare triple {24#false} [63] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-14 18:57:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 18:57:45,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 18:57:45,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009654961] [2022-04-14 18:57:45,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009654961] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 18:57:45,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 18:57:45,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-14 18:57:45,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809644334] [2022-04-14 18:57:45,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 18:57:45,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11 [2022-04-14 18:57:45,379 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 18:57:45,381 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-14 18:57:45,397 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:45,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-14 18:57:45,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 18:57:45,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-14 18:57:45,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 18:57:45,416 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-14 18:57:45,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:45,473 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-04-14 18:57:45,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-14 18:57:45,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11 [2022-04-14 18:57:45,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 18:57:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-14 18:57:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-04-14 18:57:45,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-14 18:57:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-04-14 18:57:45,488 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 23 transitions. [2022-04-14 18:57:45,522 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 18:57:45,527 INFO L225 Difference]: With dead ends: 20 [2022-04-14 18:57:45,527 INFO L226 Difference]: Without dead ends: 13 [2022-04-14 18:57:45,528 INFO L912 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 [2022-04-14 18:57:45,530 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 18:57:45,531 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 18:57:45,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-14 18:57:45,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-14 18:57:45,547 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 18:57:45,547 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 3 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) [2022-04-14 18:57:45,548 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 3 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) [2022-04-14 18:57:45,548 INFO L87 Difference]: Start difference. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 3 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) [2022-04-14 18:57:45,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:45,549 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-04-14 18:57:45,549 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-04-14 18:57:45,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:45,550 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:45,550 INFO L74 IsIncluded]: Start isIncluded. First operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 3 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) Second operand 13 states. [2022-04-14 18:57:45,550 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 3 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) Second operand 13 states. [2022-04-14 18:57:45,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 18:57:45,551 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-04-14 18:57:45,552 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-04-14 18:57:45,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 18:57:45,552 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 18:57:45,552 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 18:57:45,552 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 18:57:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 3 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) [2022-04-14 18:57:45,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-04-14 18:57:45,554 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2022-04-14 18:57:45,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 18:57:45,554 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-04-14 18:57:45,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-04-14 18:57:45,554 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-04-14 18:57:45,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-14 18:57:45,555 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 18:57:45,555 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 18:57:45,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-14 18:57:45,555 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 18:57:45,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 18:57:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -153445434, now seen corresponding path program 1 times [2022-04-14 18:57:45,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 18:57:45,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103975733] [2022-04-14 18:57:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 18:57:45,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 18:57:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-14 18:57:45,571 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-14 18:57:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-14 18:57:45,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-14 18:57:45,590 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-14 18:57:45,591 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-14 18:57:45,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-14 18:57:45,594 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-14 18:57:45,596 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-14 18:57:45,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 06:57:45 BasicIcfg [2022-04-14 18:57:45,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-14 18:57:45,608 INFO L158 Benchmark]: Toolchain (without parser) took 1056.84ms. Allocated memory is still 187.7MB. Free memory was 136.1MB in the beginning and 115.4MB in the end (delta: 20.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-04-14 18:57:45,609 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 18:57:45,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.81ms. Allocated memory is still 187.7MB. Free memory was 135.9MB in the beginning and 163.9MB in the end (delta: -28.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-14 18:57:45,612 INFO L158 Benchmark]: Boogie Preprocessor took 33.58ms. Allocated memory is still 187.7MB. Free memory was 163.8MB in the beginning and 162.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-14 18:57:45,612 INFO L158 Benchmark]: RCFGBuilder took 269.22ms. Allocated memory is still 187.7MB. Free memory was 162.3MB in the beginning and 151.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-14 18:57:45,612 INFO L158 Benchmark]: IcfgTransformer took 24.36ms. Allocated memory is still 187.7MB. Free memory was 151.4MB in the beginning and 150.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 18:57:45,613 INFO L158 Benchmark]: TraceAbstraction took 511.43ms. Allocated memory is still 187.7MB. Free memory was 149.4MB in the beginning and 115.5MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-04-14 18:57:45,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.81ms. Allocated memory is still 187.7MB. Free memory was 135.9MB in the beginning and 163.9MB in the end (delta: -28.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.58ms. Allocated memory is still 187.7MB. Free memory was 163.8MB in the beginning and 162.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 269.22ms. Allocated memory is still 187.7MB. Free memory was 162.3MB in the beginning and 151.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 24.36ms. Allocated memory is still 187.7MB. Free memory was 151.4MB in the beginning and 150.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 511.43ms. Allocated memory is still 187.7MB. Free memory was 149.4MB in the beginning and 115.5MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); [L17] int y=__VERIFIER_nondet_int(); [L18] int z=__VERIFIER_nondet_int(); [L20] COND FALSE !(x<100 && 100