/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 14:59:21,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 14:59:21,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 14:59:21,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 14:59:21,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 14:59:21,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 14:59:21,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 14:59:21,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 14:59:21,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 14:59:21,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 14:59:21,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 14:59:21,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 14:59:21,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 14:59:21,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 14:59:21,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 14:59:21,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 14:59:21,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 14:59:21,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 14:59:21,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 14:59:21,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 14:59:21,938 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 14:59:21,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 14:59:21,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 14:59:21,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 14:59:21,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 14:59:21,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-17 14:59:21,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 14:59:21,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 14:59:21,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 14:59:21,952 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 14:59:21,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 14:59:21,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 14:59:21,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 14:59:21,961 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 14:59:21,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 14:59:21,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 14:59:21,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 14:59:21,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 14:59:21,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 14:59:21,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 14:59:21,962 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 14:59:21,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 14:59:21,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 14:59:21,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 14:59:21,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 14:59:21,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 14:59:21,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 14:59:21,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 14:59:21,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 14:59:21,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 14:59:21,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 14:59:21,964 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 14:59:21,964 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 14:59:22,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 14:59:22,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 14:59:22,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 14:59:22,160 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 14:59:22,160 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 14:59:22,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2022-03-17 14:59:22,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eee712ab0/d765195cf6814869ac8fa7548a0f852d/FLAG26d22cdfe [2022-03-17 14:59:22,628 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 14:59:22,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2022-03-17 14:59:22,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eee712ab0/d765195cf6814869ac8fa7548a0f852d/FLAG26d22cdfe [2022-03-17 14:59:22,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eee712ab0/d765195cf6814869ac8fa7548a0f852d [2022-03-17 14:59:22,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 14:59:22,651 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 14:59:22,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 14:59:22,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 14:59:22,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 14:59:22,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:59:22" (1/1) ... [2022-03-17 14:59:22,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b78e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:22, skipping insertion in model container [2022-03-17 14:59:22,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:59:22" (1/1) ... [2022-03-17 14:59:22,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 14:59:22,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 14:59:22,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2022-03-17 14:59:22,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2022-03-17 14:59:23,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 14:59:23,006 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 14:59:23,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2022-03-17 14:59:23,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2022-03-17 14:59:23,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 14:59:23,137 INFO L208 MainTranslator]: Completed translation [2022-03-17 14:59:23,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23 WrapperNode [2022-03-17 14:59:23,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 14:59:23,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 14:59:23,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 14:59:23,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 14:59:23,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (1/1) ... [2022-03-17 14:59:23,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (1/1) ... [2022-03-17 14:59:23,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (1/1) ... [2022-03-17 14:59:23,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (1/1) ... [2022-03-17 14:59:23,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (1/1) ... [2022-03-17 14:59:23,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (1/1) ... [2022-03-17 14:59:23,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (1/1) ... [2022-03-17 14:59:23,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 14:59:23,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 14:59:23,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 14:59:23,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 14:59:23,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (1/1) ... [2022-03-17 14:59:23,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 14:59:23,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 14:59:23,231 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) [2022-03-17 14:59:23,235 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 [2022-03-17 14:59:23,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 14:59:23,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 14:59:23,268 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 14:59:23,268 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-17 14:59:23,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 14:59:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 14:59:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 14:59:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 14:59:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 14:59:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-17 14:59:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-17 14:59:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 14:59:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 14:59:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 14:59:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 14:59:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 14:59:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 14:59:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 14:59:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 14:59:23,364 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 14:59:23,365 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 14:59:24,003 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 14:59:24,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 14:59:24,009 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-17 14:59:24,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 02:59:24 BoogieIcfgContainer [2022-03-17 14:59:24,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 14:59:24,011 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 14:59:24,011 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 14:59:24,012 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 14:59:24,014 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 02:59:24" (1/1) ... [2022-03-17 14:59:24,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 02:59:24 BasicIcfg [2022-03-17 14:59:24,037 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 14:59:24,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 14:59:24,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 14:59:24,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 14:59:24,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:59:22" (1/4) ... [2022-03-17 14:59:24,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be99cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:59:24, skipping insertion in model container [2022-03-17 14:59:24,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:23" (2/4) ... [2022-03-17 14:59:24,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be99cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:59:24, skipping insertion in model container [2022-03-17 14:59:24,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 02:59:24" (3/4) ... [2022-03-17 14:59:24,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be99cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:59:24, skipping insertion in model container [2022-03-17 14:59:24,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 02:59:24" (4/4) ... [2022-03-17 14:59:24,042 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.cJordan [2022-03-17 14:59:24,045 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 14:59:24,045 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-17 14:59:24,070 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 14:59:24,074 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 [2022-03-17 14:59:24,074 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-17 14:59:24,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 252 states, 245 states have (on average 1.9714285714285715) internal successors, (483), 247 states have internal predecessors, (483), 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) [2022-03-17 14:59:24,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-17 14:59:24,095 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 14:59:24,096 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 14:59:24,096 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 14:59:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 14:59:24,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1372143926, now seen corresponding path program 1 times [2022-03-17 14:59:24,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 14:59:24,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405893754] [2022-03-17 14:59:24,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 14:59:24,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 14:59:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 14:59:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 14:59:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 14:59:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 14:59:24,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 14:59:24,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405893754] [2022-03-17 14:59:24,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405893754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 14:59:24,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 14:59:24,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 14:59:24,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739038253] [2022-03-17 14:59:24,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 14:59:24,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 14:59:24,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 14:59:24,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 14:59:24,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 14:59:24,478 INFO L87 Difference]: Start difference. First operand has 252 states, 245 states have (on average 1.9714285714285715) internal successors, (483), 247 states have internal predecessors, (483), 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 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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) [2022-03-17 14:59:25,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 14:59:25,285 INFO L93 Difference]: Finished difference Result 263 states and 497 transitions. [2022-03-17 14:59:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 14:59:25,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 138 [2022-03-17 14:59:25,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 14:59:25,294 INFO L225 Difference]: With dead ends: 263 [2022-03-17 14:59:25,294 INFO L226 Difference]: Without dead ends: 253 [2022-03-17 14:59:25,295 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-17 14:59:25,297 INFO L912 BasicCegarLoop]: 96 mSDtfsCounter, 980 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 14:59:25,298 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 121 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 14:59:25,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-03-17 14:59:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 246. [2022-03-17 14:59:25,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 242 states have (on average 1.1570247933884297) internal successors, (280), 242 states have internal predecessors, (280), 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) [2022-03-17 14:59:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2022-03-17 14:59:25,351 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 138 [2022-03-17 14:59:25,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 14:59:25,353 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2022-03-17 14:59:25,353 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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) [2022-03-17 14:59:25,353 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2022-03-17 14:59:25,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-17 14:59:25,360 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 14:59:25,360 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 14:59:25,361 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 14:59:25,361 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 14:59:25,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 14:59:25,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1813108825, now seen corresponding path program 1 times [2022-03-17 14:59:25,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 14:59:25,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268320347] [2022-03-17 14:59:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 14:59:25,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 14:59:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 14:59:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 14:59:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 14:59:25,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 14:59:25,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 14:59:25,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268320347] [2022-03-17 14:59:25,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268320347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 14:59:25,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 14:59:25,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 14:59:25,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105564749] [2022-03-17 14:59:25,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 14:59:25,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 14:59:25,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 14:59:25,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 14:59:25,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 14:59:25,543 INFO L87 Difference]: Start difference. First operand 246 states and 283 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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) [2022-03-17 14:59:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 14:59:26,007 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2022-03-17 14:59:26,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 14:59:26,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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 139 [2022-03-17 14:59:26,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 14:59:26,008 INFO L225 Difference]: With dead ends: 256 [2022-03-17 14:59:26,008 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 14:59:26,008 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-17 14:59:26,009 INFO L912 BasicCegarLoop]: 93 mSDtfsCounter, 489 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-17 14:59:26,009 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 110 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-17 14:59:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 14:59:26,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 14:59:26,010 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) [2022-03-17 14:59:26,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 14:59:26,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2022-03-17 14:59:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 14:59:26,010 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 14:59:26,011 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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) [2022-03-17 14:59:26,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 14:59:26,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 14:59:26,013 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-17 14:59:26,013 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-17 14:59:26,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 14:59:26,015 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-17 14:59:26,016 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 14:59:26,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:59:26 BasicIcfg [2022-03-17 14:59:26,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 14:59:26,018 INFO L158 Benchmark]: Toolchain (without parser) took 3366.96ms. Allocated memory was 201.3MB in the beginning and 320.9MB in the end (delta: 119.5MB). Free memory was 145.8MB in the beginning and 263.0MB in the end (delta: -117.3MB). Peak memory consumption was 2.5MB. Max. memory is 8.0GB. [2022-03-17 14:59:26,019 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 14:59:26,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.44ms. Allocated memory was 201.3MB in the beginning and 320.9MB in the end (delta: 119.5MB). Free memory was 145.5MB in the beginning and 270.4MB in the end (delta: -124.9MB). Peak memory consumption was 15.6MB. Max. memory is 8.0GB. [2022-03-17 14:59:26,019 INFO L158 Benchmark]: Boogie Preprocessor took 56.30ms. Allocated memory is still 320.9MB. Free memory was 270.4MB in the beginning and 266.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-03-17 14:59:26,020 INFO L158 Benchmark]: RCFGBuilder took 815.68ms. Allocated memory is still 320.9MB. Free memory was 266.2MB in the beginning and 278.2MB in the end (delta: -12.0MB). Peak memory consumption was 63.0MB. Max. memory is 8.0GB. [2022-03-17 14:59:26,020 INFO L158 Benchmark]: IcfgTransformer took 25.94ms. Allocated memory is still 320.9MB. Free memory was 278.2MB in the beginning and 271.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-17 14:59:26,020 INFO L158 Benchmark]: TraceAbstraction took 1979.97ms. Allocated memory is still 320.9MB. Free memory was 271.4MB in the beginning and 263.0MB in the end (delta: 8.3MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. [2022-03-17 14:59:26,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 485.44ms. Allocated memory was 201.3MB in the beginning and 320.9MB in the end (delta: 119.5MB). Free memory was 145.5MB in the beginning and 270.4MB in the end (delta: -124.9MB). Peak memory consumption was 15.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.30ms. Allocated memory is still 320.9MB. Free memory was 270.4MB in the beginning and 266.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 815.68ms. Allocated memory is still 320.9MB. Free memory was 266.2MB in the beginning and 278.2MB in the end (delta: -12.0MB). Peak memory consumption was 63.0MB. Max. memory is 8.0GB. * IcfgTransformer took 25.94ms. Allocated memory is still 320.9MB. Free memory was 278.2MB in the beginning and 271.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 1979.97ms. Allocated memory is still 320.9MB. Free memory was 271.4MB in the beginning and 263.0MB in the end (delta: 8.3MB). Peak memory consumption was 7.8MB. 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: 2003]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 2312]: 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, 252 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1469 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1469 mSDsluCounter, 231 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1971 IncrementalHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 138 mSolverCounterUnsat, 189 mSDtfsCounter, 1971 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-17 14:59:26,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...