/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-b030c9e [2022-03-20 03:37:44,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 03:37:44,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 03:37:44,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 03:37:44,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 03:37:44,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 03:37:44,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 03:37:44,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 03:37:44,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 03:37:44,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 03:37:44,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 03:37:44,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 03:37:44,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 03:37:44,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 03:37:44,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 03:37:44,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 03:37:44,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 03:37:44,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 03:37:44,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 03:37:44,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 03:37:44,621 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 03:37:44,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 03:37:44,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 03:37:44,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 03:37:44,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 03:37:44,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 03:37:44,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 03:37:44,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 03:37:44,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 03:37:44,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 03:37:44,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 03:37:44,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 03:37:44,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 03:37:44,645 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 03:37:44,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 03:37:44,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 03:37:44,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 03:37:44,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 03:37:44,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 03:37:44,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 03:37:44,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:37:44,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 03:37:44,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 03:37:44,648 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 03:37:44,648 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 03:37:44,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 03:37:44,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 03:37:44,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 03:37:44,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 03:37:44,873 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 03:37:44,874 INFO L432 ainManager$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 [2022-03-20 03:37:44,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f992f39ce/3ffab86ac9554adc875de3f1f58f5ae7/FLAG4e82ce513 [2022-03-20 03:37:45,310 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 03:37:45,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2022-03-20 03:37:45,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f992f39ce/3ffab86ac9554adc875de3f1f58f5ae7/FLAG4e82ce513 [2022-03-20 03:37:45,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f992f39ce/3ffab86ac9554adc875de3f1f58f5ae7 [2022-03-20 03:37:45,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 03:37:45,335 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 03:37:45,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 03:37:45,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 03:37:45,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 03:37:45,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c1c4e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45, skipping insertion in model container [2022-03-20 03:37:45,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 03:37:45,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 03:37:45,664 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] [2022-03-20 03:37:45,690 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] [2022-03-20 03:37:45,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:37:45,717 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 03:37:45,820 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] [2022-03-20 03:37:45,838 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] [2022-03-20 03:37:45,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:37:45,860 INFO L208 MainTranslator]: Completed translation [2022-03-20 03:37:45,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45 WrapperNode [2022-03-20 03:37:45,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 03:37:45,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 03:37:45,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 03:37:45,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 03:37:45,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 03:37:45,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 03:37:45,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 03:37:45,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 03:37:45,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (1/1) ... [2022-03-20 03:37:45,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:37:45,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:37:45,989 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) [2022-03-20 03:37:46,021 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 [2022-03-20 03:37:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 03:37:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 03:37:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 03:37:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 03:37:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 03:37:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 03:37:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 03:37:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 03:37:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 03:37:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 03:37:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 03:37:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 03:37:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 03:37:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 03:37:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 03:37:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 03:37:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 03:37:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 03:37:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 03:37:46,147 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 03:37:46,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 03:37:46,866 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 03:37:46,879 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 03:37:46,879 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-20 03:37:46,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:37:46 BoogieIcfgContainer [2022-03-20 03:37:46,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 03:37:46,882 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 03:37:46,882 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 03:37:46,883 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 03:37:46,885 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:37:46" (1/1) ... [2022-03-20 03:37:46,887 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 03:37:46,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 03:37:46 BasicIcfg [2022-03-20 03:37:46,920 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 03:37:46,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 03:37:46,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 03:37:46,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 03:37:46,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:37:45" (1/4) ... [2022-03-20 03:37:46,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1417eded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:37:46, skipping insertion in model container [2022-03-20 03:37:46,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:37:45" (2/4) ... [2022-03-20 03:37:46,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1417eded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:37:46, skipping insertion in model container [2022-03-20 03:37:46,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:37:46" (3/4) ... [2022-03-20 03:37:46,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1417eded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 03:37:46, skipping insertion in model container [2022-03-20 03:37:46,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 03:37:46" (4/4) ... [2022-03-20 03:37:46,929 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.cJordan [2022-03-20 03:37:46,933 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 03:37:46,933 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-20 03:37:46,972 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 03:37:46,979 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 [2022-03-20 03:37:46,979 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-20 03:37:46,994 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) [2022-03-20 03:37:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-20 03:37:47,015 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:37:47,016 INFO L499 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] [2022-03-20 03:37:47,016 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:37:47,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:37:47,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1372143926, now seen corresponding path program 1 times [2022-03-20 03:37:47,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:37:47,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752893055] [2022-03-20 03:37:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:37:47,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:37:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:37:47,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:37:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:37:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:37:47,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:37:47,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752893055] [2022-03-20 03:37:47,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752893055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:37:47,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:37:47,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 03:37:47,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247762008] [2022-03-20 03:37:47,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:37:47,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 03:37:47,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:37:47,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 03:37:47,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:37:47,450 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) [2022-03-20 03:37:48,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:37:48,356 INFO L93 Difference]: Finished difference Result 263 states and 497 transitions. [2022-03-20 03:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 03:37:48,358 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 [2022-03-20 03:37:48,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:37:48,364 INFO L225 Difference]: With dead ends: 263 [2022-03-20 03:37:48,365 INFO L226 Difference]: Without dead ends: 253 [2022-03-20 03:37:48,366 INFO L912 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 [2022-03-20 03:37:48,368 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 980 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:37:48,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 121 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-20 03:37:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-03-20 03:37:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 246. [2022-03-20 03:37:48,396 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) [2022-03-20 03:37:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2022-03-20 03:37:48,398 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 138 [2022-03-20 03:37:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:37:48,398 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2022-03-20 03:37:48,399 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) [2022-03-20 03:37:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2022-03-20 03:37:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-20 03:37:48,400 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:37:48,401 INFO L499 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] [2022-03-20 03:37:48,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 03:37:48,401 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:37:48,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:37:48,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1813108825, now seen corresponding path program 1 times [2022-03-20 03:37:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:37:48,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025614372] [2022-03-20 03:37:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:37:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:37:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:37:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:37:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:37:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:37:48,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:37:48,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025614372] [2022-03-20 03:37:48,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025614372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:37:48,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:37:48,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 03:37:48,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416791410] [2022-03-20 03:37:48,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:37:48,574 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 03:37:48,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:37:48,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 03:37:48,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:37:48,575 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) [2022-03-20 03:37:49,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:37:49,077 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2022-03-20 03:37:49,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 03:37:49,077 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 [2022-03-20 03:37:49,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:37:49,078 INFO L225 Difference]: With dead ends: 256 [2022-03-20 03:37:49,078 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 03:37:49,078 INFO L912 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 [2022-03-20 03:37:49,079 INFO L913 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 [2022-03-20 03:37:49,079 INFO L914 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] [2022-03-20 03:37:49,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 03:37:49,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 03:37:49,080 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) [2022-03-20 03:37:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 03:37:49,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2022-03-20 03:37:49,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:37:49,081 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 03:37:49,081 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) [2022-03-20 03:37:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 03:37:49,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 03:37:49,083 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-20 03:37:49,083 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-03-20 03:37:49,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 03:37:49,086 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-20 03:37:49,086 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 03:37:49,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 03:37:49 BasicIcfg [2022-03-20 03:37:49,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 03:37:49,089 INFO L158 Benchmark]: Toolchain (without parser) took 3753.86ms. Allocated memory was 212.9MB in the beginning and 262.1MB in the end (delta: 49.3MB). Free memory was 163.3MB in the beginning and 140.0MB in the end (delta: 23.3MB). Peak memory consumption was 73.1MB. Max. memory is 8.0GB. [2022-03-20 03:37:49,089 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 212.9MB. Free memory was 181.2MB in the beginning and 181.0MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 03:37:49,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.83ms. Allocated memory was 212.9MB in the beginning and 262.1MB in the end (delta: 49.3MB). Free memory was 163.0MB in the beginning and 215.4MB in the end (delta: -52.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-03-20 03:37:49,090 INFO L158 Benchmark]: Boogie Preprocessor took 90.70ms. Allocated memory is still 262.1MB. Free memory was 215.4MB in the beginning and 211.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-03-20 03:37:49,090 INFO L158 Benchmark]: RCFGBuilder took 919.94ms. Allocated memory is still 262.1MB. Free memory was 211.0MB in the beginning and 187.9MB in the end (delta: 23.1MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. [2022-03-20 03:37:49,091 INFO L158 Benchmark]: IcfgTransformer took 38.04ms. Allocated memory is still 262.1MB. Free memory was 187.9MB in the beginning and 181.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-20 03:37:49,091 INFO L158 Benchmark]: TraceAbstraction took 2166.07ms. Allocated memory is still 262.1MB. Free memory was 181.1MB in the beginning and 140.0MB in the end (delta: 41.1MB). Peak memory consumption was 41.1MB. Max. memory is 8.0GB. [2022-03-20 03:37:49,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 212.9MB. Free memory was 181.2MB in the beginning and 181.0MB in the end (delta: 150.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 523.83ms. Allocated memory was 212.9MB in the beginning and 262.1MB in the end (delta: 49.3MB). Free memory was 163.0MB in the beginning and 215.4MB in the end (delta: -52.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 90.70ms. Allocated memory is still 262.1MB. Free memory was 215.4MB in the beginning and 211.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 919.94ms. Allocated memory is still 262.1MB. Free memory was 211.0MB in the beginning and 187.9MB in the end (delta: 23.1MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. * IcfgTransformer took 38.04ms. Allocated memory is still 262.1MB. Free memory was 187.9MB in the beginning and 181.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 2166.07ms. Allocated memory is still 262.1MB. Free memory was 181.1MB in the beginning and 140.0MB in the end (delta: 41.1MB). Peak memory consumption was 41.1MB. 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: 2.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1469 SdHoareTripleChecker+Valid, 1.2s 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, 0.1s 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! [2022-03-20 03:37:49,118 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...