/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 01:43:48,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 01:43:48,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 01:43:48,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 01:43:48,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 01:43:48,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 01:43:48,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 01:43:48,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 01:43:48,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 01:43:48,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 01:43:48,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 01:43:48,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 01:43:48,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 01:43:48,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 01:43:48,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 01:43:48,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 01:43:48,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 01:43:48,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 01:43:48,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 01:43:48,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 01:43:48,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 01:43:48,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 01:43:48,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 01:43:48,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 01:43:48,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 01:43:48,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 01:43:48,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 01:43:48,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 01:43:48,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-15 01:43:48,802 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 01:43:48,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 01:43:48,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 01:43:48,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 01:43:48,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 01:43:48,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 01:43:48,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 01:43:48,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 01:43:48,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 01:43:48,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 01:43:48,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 01:43:48,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 01:43:48,805 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 01:43:48,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 01:43:48,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 01:43:48,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 01:43:48,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 01:43:48,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 01:43:48,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 01:43:48,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 01:43:48,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 01:43:48,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 01:43:48,806 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 01:43:48,806 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 01:43:48,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 01:43:49,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 01:43:49,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 01:43:49,003 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 01:43:49,004 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 01:43:49,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c [2022-02-15 01:43:49,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071e95763/a61d97e254524e60b4deb0e2c9c4dee1/FLAGc87f8f7b7 [2022-02-15 01:43:49,460 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 01:43:49,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c [2022-02-15 01:43:49,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071e95763/a61d97e254524e60b4deb0e2c9c4dee1/FLAGc87f8f7b7 [2022-02-15 01:43:49,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071e95763/a61d97e254524e60b4deb0e2c9c4dee1 [2022-02-15 01:43:49,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 01:43:49,484 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 01:43:49,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 01:43:49,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 01:43:49,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 01:43:49,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b7077e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49, skipping insertion in model container [2022-02-15 01:43:49,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 01:43:49,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 01:43:49,721 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-industry-pattern/ofuf_3.c[11322,11335] [2022-02-15 01:43:49,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 01:43:49,728 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 01:43:49,768 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-industry-pattern/ofuf_3.c[11322,11335] [2022-02-15 01:43:49,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 01:43:49,778 INFO L208 MainTranslator]: Completed translation [2022-02-15 01:43:49,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49 WrapperNode [2022-02-15 01:43:49,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 01:43:49,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 01:43:49,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 01:43:49,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 01:43:49,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 01:43:49,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 01:43:49,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 01:43:49,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 01:43:49,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (1/1) ... [2022-02-15 01:43:49,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 01:43:49,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 01:43:49,877 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) [2022-02-15 01:43:49,883 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 [2022-02-15 01:43:49,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 01:43:49,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 01:43:49,900 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 01:43:49,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 01:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-15 01:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 01:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 01:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 01:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-15 01:43:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-02-15 01:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 01:43:50,003 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 01:43:50,004 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 01:43:50,354 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 01:43:50,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 01:43:50,359 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-02-15 01:43:50,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:43:50 BoogieIcfgContainer [2022-02-15 01:43:50,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 01:43:50,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 01:43:50,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 01:43:50,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 01:43:50,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:43:49" (1/3) ... [2022-02-15 01:43:50,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af5a8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:43:50, skipping insertion in model container [2022-02-15 01:43:50,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:43:49" (2/3) ... [2022-02-15 01:43:50,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af5a8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:43:50, skipping insertion in model container [2022-02-15 01:43:50,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:43:50" (3/3) ... [2022-02-15 01:43:50,366 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_3.c [2022-02-15 01:43:50,369 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 01:43:50,369 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 01:43:50,396 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 01:43:50,400 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-02-15 01:43:50,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 01:43:50,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 01:43:50,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-15 01:43:50,417 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 01:43:50,418 INFO L514 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] [2022-02-15 01:43:50,418 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 01:43:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 01:43:50,421 INFO L85 PathProgramCache]: Analyzing trace with hash -540283313, now seen corresponding path program 1 times [2022-02-15 01:43:50,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 01:43:50,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020065334] [2022-02-15 01:43:50,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 01:43:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 01:43:50,468 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 01:43:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:43:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 01:43:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:43:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-15 01:43:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:43:50,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-02-15 01:43:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:43:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 01:43:50,735 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 01:43:50,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020065334] [2022-02-15 01:43:50,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2020065334] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 01:43:50,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 01:43:50,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 01:43:50,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500615403] [2022-02-15 01:43:50,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 01:43:50,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 01:43:50,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 01:43:50,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 01:43:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 01:43:50,758 INFO L87 Difference]: Start difference. First operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-02-15 01:43:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 01:43:51,206 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2022-02-15 01:43:51,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 01:43:51,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-02-15 01:43:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 01:43:51,216 INFO L225 Difference]: With dead ends: 243 [2022-02-15 01:43:51,216 INFO L226 Difference]: Without dead ends: 119 [2022-02-15 01:43:51,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 01:43:51,227 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 238 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 01:43:51,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 01:43:51,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-02-15 01:43:51,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-02-15 01:43:51,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 95 states have internal predecessors, (137), 16 states have call successors, (16), 11 states have call predecessors, (16), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 01:43:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2022-02-15 01:43:51,295 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2022-02-15 01:43:51,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 01:43:51,295 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2022-02-15 01:43:51,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-02-15 01:43:51,296 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2022-02-15 01:43:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-15 01:43:51,302 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 01:43:51,302 INFO L514 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] [2022-02-15 01:43:51,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 01:43:51,302 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 01:43:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 01:43:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1349629939, now seen corresponding path program 1 times [2022-02-15 01:43:51,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 01:43:51,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229996710] [2022-02-15 01:43:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 01:43:51,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 01:43:51,308 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 01:43:51,363 WARN L132 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2022-02-15 01:43:51,363 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2022-02-15 01:43:51,371 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 01:43:51,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 01:43:51,375 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-15 01:43:51,377 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 01:43:51,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:43:51 BoogieIcfgContainer [2022-02-15 01:43:51,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 01:43:51,390 INFO L158 Benchmark]: Toolchain (without parser) took 1905.81ms. Allocated memory was 205.5MB in the beginning and 272.6MB in the end (delta: 67.1MB). Free memory was 155.4MB in the beginning and 177.8MB in the end (delta: -22.3MB). Peak memory consumption was 45.4MB. Max. memory is 8.0GB. [2022-02-15 01:43:51,391 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 205.5MB. Free memory was 172.4MB in the beginning and 172.2MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 01:43:51,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.20ms. Allocated memory is still 205.5MB. Free memory was 155.1MB in the beginning and 173.0MB in the end (delta: -17.8MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-02-15 01:43:51,393 INFO L158 Benchmark]: Boogie Preprocessor took 60.36ms. Allocated memory is still 205.5MB. Free memory was 173.0MB in the beginning and 169.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-15 01:43:51,393 INFO L158 Benchmark]: RCFGBuilder took 520.31ms. Allocated memory is still 205.5MB. Free memory was 169.4MB in the beginning and 139.5MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-02-15 01:43:51,393 INFO L158 Benchmark]: TraceAbstraction took 1027.25ms. Allocated memory was 205.5MB in the beginning and 272.6MB in the end (delta: 67.1MB). Free memory was 139.0MB in the beginning and 177.8MB in the end (delta: -38.8MB). Peak memory consumption was 29.3MB. Max. memory is 8.0GB. [2022-02-15 01:43:51,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 205.5MB. Free memory was 172.4MB in the beginning and 172.2MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 293.20ms. Allocated memory is still 205.5MB. Free memory was 155.1MB in the beginning and 173.0MB in the end (delta: -17.8MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.36ms. Allocated memory is still 205.5MB. Free memory was 173.0MB in the beginning and 169.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 520.31ms. Allocated memory is still 205.5MB. Free memory was 169.4MB in the beginning and 139.5MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1027.25ms. Allocated memory was 205.5MB in the beginning and 272.6MB in the end (delta: 67.1MB). Free memory was 139.0MB in the beginning and 177.8MB in the end (delta: -38.8MB). Peak memory consumption was 29.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 463]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L181] unsigned int Id_MCDC_104; [L182] UINT16 Id_MCDC_105; [L183] UINT16 Id_MCDC_106; [L184] Od_IndexTable* Id_MCDC_107; [L185] Od_IndexTable* Id_MCDC_108; [L186] Od_IndexTable* Id_MCDC_109; [L187] Od_IndexTable* Id_MCDC_110; [L188] Od_IndexTable* Id_MCDC_111; [L189] UINT32 Id_MCDC_112 [4]; [L190] CanOpenNode Id_MCDC_113; [L191] UINT32 Id_MCDC_114=0; [L429] void * Id_MCDC_143; [L430] void * Id_MCDC_144; [L431] void * Id_MCDC_145; [L432] void * Id_MCDC_146; [L433] void * Id_MCDC_147; [L434] void * Id_MCDC_148; [L435] int Id_MCDC_149; [L436] int Id_MCDC_150; [L437] int Id_MCDC_151; [L438] int Id_MCDC_152; [L439] int Id_MCDC_153; [L440] int Id_MCDC_154; [L441] int Id_MCDC_155; [L442] short Id_MCDC_156; [L443] short Id_MCDC_157; [L444] FILE* Id_MCDC_158; [L445] unsigned short Id_MCDC_159; [L446] unsigned short Id_MCDC_160; [L447] unsigned short Id_MCDC_161=0; [L448] unsigned short Id_MCDC_162=0; [L449] char Id_MCDC_163; [L450] char Id_MCDC_164; [L451] Id_MCDC_158 = fopen("in.eds", "r") [L452] COND FALSE !(Id_MCDC_158 == (( void * ) 0)) [L457] CALL Id_MCDC_100() [L422] int Id_MCDC_141; [L423] void * Id_MCDC_142; [L424] CALL Id_MCDC_99() [L402] CHAR Id_MCDC_139 [4]={0, 0, 0, 0}; [L403] UINT32 Id_MCDC_140=0; [L404] Id_MCDC_113.Id_MCDC_66 = ( PDO_Buffer* ) malloc(372) [L405] CALL Id_MCDC_97() [L333] UINT32 Id_MCDC_123; [L334] UINT32 Id_MCDC_124; [L335] UINT32 Id_MCDC_125; [L336] UINT32 Id_MCDC_126; [L337] UINT32 Id_MCDC_127; [L338] UINT32 Id_MCDC_128=0x00; [L339] UINT16 Id_MCDC_129; [L340] UINT32 Id_MCDC_130=0x00; [L341] UINT32 Id_MCDC_131=0x00; [L342] UINT8 Id_MCDC_35=0; [L343] UINT8 Id_MCDC_132=0; [L344] UINT8 Id_MCDC_36=0; [L345] UINT8 Id_MCDC_133=0; [L346] UINT8 Id_MCDC_134=0x00; [L347] INT32 Id_MCDC_135; [L348] void * Id_MCDC_136; [L349] UINT32* Id_MCDC_137; [L350] UINT16 Id_MCDC_138; [L351] Id_MCDC_123 = 0x1800 [L352] Id_MCDC_132 = 0 [L352] COND FALSE !(Id_MCDC_132 < 4) [L356] COND FALSE !(Id_MCDC_123 <= 0x1803) [L398] return 0x00; [L338] UINT32 Id_MCDC_128=0x00; [L398] return 0x00; [L340] UINT32 Id_MCDC_130=0x00; [L398] return 0x00; [L341] UINT32 Id_MCDC_131=0x00; [L398] return 0x00; [L398] return 0x00; [L398] return 0x00; [L405] RET Id_MCDC_97() [L406] Id_MCDC_140 = 0 [L406] COND FALSE !(Id_MCDC_140 < 4) [L417] CALL Id_MCDC_95(4, Id_MCDC_139) [L282] UINT32 Id_MCDC_121=0; [L283] UINT32 Id_MCDC_122=0; [L284] COND FALSE !(Id_MCDC_93 < 2) [L288] COND FALSE !(Id_MCDC_93 != 2) [L294] EXPR Id_MCDC_94[1] [L294] Id_MCDC_122 = Id_MCDC_94[1] [L296] EXPR Id_MCDC_94[0] [L296] CALL Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L251] UINT32 Id_MCDC_117=0; [L252] UINT32 Id_MCDC_118=0; [L253] UINT32 Id_MCDC_119=1; [L254] UINT32 Id_MCDC_120=0; [L255] COND TRUE Id_MCDC_90 > Id_MCDC_91 [L257] Id_MCDC_117 = Id_MCDC_90 [L258] Id_MCDC_118 = Id_MCDC_91 [L270] COND TRUE Id_MCDC_119 != 0 [L272] CALL avoid_zero(Id_MCDC_118 != 0) [L11] COND FALSE !(!y) [L272] RET avoid_zero(Id_MCDC_118 != 0) [L273] Id_MCDC_120 = ( UINT32 ) (Id_MCDC_117 / Id_MCDC_118) [L274] CALL __VERIFIER_assert(( long long ) (Id_MCDC_120 * Id_MCDC_118) >= 0 && ( long long ) (Id_MCDC_120 * Id_MCDC_118) <= 4294967295) [L461] COND TRUE ! (Id_MCDC_103) [L463] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 133 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-15 01:43:51,426 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...