./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Rotation180-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b00609e8a5157a2c2170182728102acfed7f2a6378b93d77117c85e508e2185 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 22:53:39,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 22:53:39,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 22:53:39,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 22:53:39,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 22:53:39,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 22:53:39,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 22:53:39,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 22:53:39,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 22:53:39,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 22:53:39,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 22:53:39,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 22:53:39,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 22:53:39,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 22:53:39,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 22:53:39,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 22:53:39,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 22:53:39,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 22:53:39,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 22:53:39,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 22:53:39,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 22:53:39,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 22:53:39,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 22:53:39,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 22:53:39,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 22:53:39,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 22:53:39,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 22:53:39,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 22:53:39,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 22:53:39,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 22:53:39,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 22:53:39,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 22:53:39,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 22:53:39,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 22:53:39,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 22:53:39,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 22:53:39,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 22:53:39,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 22:53:39,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 22:53:39,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 22:53:39,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 22:53:39,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-13 22:53:39,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 22:53:39,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 22:53:39,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 22:53:39,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 22:53:39,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 22:53:39,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 22:53:39,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 22:53:39,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 22:53:39,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 22:53:39,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 22:53:39,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 22:53:39,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 22:53:39,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 22:53:39,994 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 22:53:39,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 22:53:39,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 22:53:39,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 22:53:39,995 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 22:53:39,995 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 22:53:39,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 22:53:39,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:53:39,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 22:53:39,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 22:53:39,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 22:53:39,997 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 22:53:39,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 22:53:39,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 22:53:39,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b00609e8a5157a2c2170182728102acfed7f2a6378b93d77117c85e508e2185 [2021-11-13 22:53:40,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 22:53:40,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 22:53:40,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 22:53:40,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 22:53:40,442 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 22:53:40,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted/Rotation180-2.c [2021-11-13 22:53:40,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/data/c7b50583a/9789a77367cb4cd1a14b2f86dc671488/FLAG2d0649fce [2021-11-13 22:53:41,146 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 22:53:41,148 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/sv-benchmarks/c/termination-crafted/Rotation180-2.c [2021-11-13 22:53:41,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/data/c7b50583a/9789a77367cb4cd1a14b2f86dc671488/FLAG2d0649fce [2021-11-13 22:53:41,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/data/c7b50583a/9789a77367cb4cd1a14b2f86dc671488 [2021-11-13 22:53:41,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 22:53:41,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 22:53:41,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 22:53:41,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 22:53:41,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 22:53:41,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2709625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41, skipping insertion in model container [2021-11-13 22:53:41,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 22:53:41,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 22:53:41,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:53:41,732 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 22:53:41,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:53:41,760 INFO L208 MainTranslator]: Completed translation [2021-11-13 22:53:41,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41 WrapperNode [2021-11-13 22:53:41,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 22:53:41,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 22:53:41,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 22:53:41,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 22:53:41,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 22:53:41,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 22:53:41,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 22:53:41,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 22:53:41,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 22:53:41,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 22:53:41,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 22:53:41,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 22:53:41,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:53:41" (1/1) ... [2021-11-13 22:53:41,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:53:41,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/z3 [2021-11-13 22:53:41,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 22:53:41,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 22:53:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 22:53:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 22:53:42,143 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 22:53:42,145 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 22:53:42,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:53:42 BoogieIcfgContainer [2021-11-13 22:53:42,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 22:53:42,150 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 22:53:42,151 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 22:53:42,165 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 22:53:42,165 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:53:42" (1/1) ... [2021-11-13 22:53:42,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 22:53:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:53:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-11-13 22:53:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-11-13 22:53:42,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 22:53:42,294 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:53:42,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:53:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 22:53:42,387 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 22:53:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 22:53:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 22:53:42,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 22:53:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 22:53:42,470 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-13 22:53:42,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:53:42 ImpRootNode [2021-11-13 22:53:42,508 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 22:53:42,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 22:53:42,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 22:53:42,513 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 22:53:42,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:53:42" (3/4) ... [2021-11-13 22:53:42,515 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 22:53:42,571 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 22:53:42,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 22:53:42,573 INFO L158 Benchmark]: Toolchain (without parser) took 1062.17ms. Allocated memory is still 107.0MB. Free memory was 70.2MB in the beginning and 61.6MB in the end (delta: 8.5MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-13 22:53:42,574 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 107.0MB. Free memory was 86.1MB in the beginning and 86.0MB in the end (delta: 67.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:53:42,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.70ms. Allocated memory is still 107.0MB. Free memory was 69.9MB in the beginning and 83.3MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 22:53:42,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.26ms. Allocated memory is still 107.0MB. Free memory was 83.3MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:53:42,580 INFO L158 Benchmark]: Boogie Preprocessor took 18.47ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 81.2MB in the end (delta: 777.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:53:42,580 INFO L158 Benchmark]: RCFGBuilder took 332.48ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 72.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 22:53:42,584 INFO L158 Benchmark]: CodeCheck took 358.46ms. Allocated memory is still 107.0MB. Free memory was 72.5MB in the beginning and 63.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 22:53:42,585 INFO L158 Benchmark]: Witness Printer took 59.90ms. Allocated memory is still 107.0MB. Free memory was 63.1MB in the beginning and 61.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:53:42,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int oldx; [L16] int x; [L17] int y; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L20] COND TRUE \read(true) [L21] oldx = x VAL [oldx=0, x=0, y=-2147483648] [L22] -y VAL [oldx=0, x=0, y=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 107.0MB. Free memory was 86.1MB in the beginning and 86.0MB in the end (delta: 67.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.70ms. Allocated memory is still 107.0MB. Free memory was 69.9MB in the beginning and 83.3MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.26ms. Allocated memory is still 107.0MB. Free memory was 83.3MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.47ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 81.2MB in the end (delta: 777.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.48ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 72.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 358.46ms. Allocated memory is still 107.0MB. Free memory was 72.5MB in the beginning and 63.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 59.90ms. Allocated memory is still 107.0MB. Free memory was 63.1MB in the beginning and 61.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 22:53:42,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e057a34a-a7c3-4620-92a0-9744c17255c7/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)