./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/ex2-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/ex2-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4 --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 ca87d5b6e7140410b2e8ce037ac41ad7bce1b2fe06d88d0f44cab43110eea6f7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-15 00:00:34,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 00:00:34,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 00:00:34,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 00:00:34,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 00:00:34,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 00:00:34,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 00:00:34,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 00:00:34,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 00:00:34,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 00:00:34,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 00:00:34,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 00:00:34,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 00:00:34,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 00:00:34,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 00:00:34,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 00:00:34,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 00:00:34,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 00:00:34,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 00:00:34,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 00:00:34,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 00:00:34,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 00:00:34,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 00:00:34,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 00:00:34,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 00:00:34,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 00:00:34,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 00:00:34,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 00:00:34,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 00:00:34,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 00:00:34,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 00:00:34,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 00:00:34,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 00:00:34,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 00:00:34,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 00:00:34,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 00:00:34,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 00:00:34,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 00:00:34,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 00:00:34,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 00:00:34,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 00:00:34,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 00:00:34,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 00:00:34,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 00:00:34,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 00:00:34,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 00:00:34,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 00:00:34,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 00:00:34,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 00:00:34,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 00:00:34,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 00:00:34,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 00:00:34,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 00:00:34,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 00:00:34,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 00:00:34,861 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 00:00:34,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 00:00:34,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 00:00:34,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 00:00:34,862 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 00:00:34,862 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 00:00:34,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 00:00:34,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:00:34,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 00:00:34,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 00:00:34,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 00:00:34,863 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 00:00:34,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 00:00:34,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 00:00:34,864 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_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca87d5b6e7140410b2e8ce037ac41ad7bce1b2fe06d88d0f44cab43110eea6f7 [2022-12-15 00:00:35,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 00:00:35,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 00:00:35,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 00:00:35,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 00:00:35,115 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 00:00:35,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-memory-alloca/ex2-alloca.i [2022-12-15 00:00:37,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 00:00:37,940 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 00:00:37,940 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/sv-benchmarks/c/termination-memory-alloca/ex2-alloca.i [2022-12-15 00:00:37,949 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/data/c55cab8c2/f506955cd403457987e914b796209159/FLAGa67897841 [2022-12-15 00:00:37,960 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/data/c55cab8c2/f506955cd403457987e914b796209159 [2022-12-15 00:00:37,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 00:00:37,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 00:00:37,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 00:00:37,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 00:00:37,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 00:00:37,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:00:37" (1/1) ... [2022-12-15 00:00:37,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62af1dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:37, skipping insertion in model container [2022-12-15 00:00:37,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:00:37" (1/1) ... [2022-12-15 00:00:37,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 00:00:37,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 00:00:38,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:00:38,237 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 00:00:38,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:00:38,276 INFO L208 MainTranslator]: Completed translation [2022-12-15 00:00:38,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38 WrapperNode [2022-12-15 00:00:38,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 00:00:38,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 00:00:38,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 00:00:38,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 00:00:38,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,304 INFO L138 Inliner]: procedures = 111, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2022-12-15 00:00:38,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 00:00:38,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 00:00:38,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 00:00:38,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 00:00:38,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,320 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 00:00:38,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 00:00:38,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 00:00:38,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 00:00:38,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:00:38,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 00:00:38,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 00:00:38,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 00:00:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 00:00:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 00:00:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-15 00:00:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 00:00:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 00:00:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 00:00:38,475 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 00:00:38,477 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 00:00:38,632 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 00:00:38,692 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 00:00:38,692 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-15 00:00:38,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:00:38 BoogieIcfgContainer [2022-12-15 00:00:38,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 00:00:38,695 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 00:00:38,696 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 00:00:38,713 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 00:00:38,713 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:00:38" (1/1) ... [2022-12-15 00:00:38,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 00:00:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:00:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2022-12-15 00:00:38,770 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-12-15 00:00:38,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 00:00:38,773 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:00:38,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:00:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:00:39,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-15 00:00:39,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:00:39,261 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-15 00:00:39,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2022-12-15 00:00:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:00:39,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:00:39,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2022-12-15 00:00:39,336 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-12-15 00:00:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:00:39,337 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:00:39,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:00:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:00:39,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 00:00:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:00:39,497 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-12-15 00:00:39,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 12:00:39 ImpRootNode [2022-12-15 00:00:39,527 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 00:00:39,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 00:00:39,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 00:00:39,528 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 00:00:39,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:00:38" (3/4) ... [2022-12-15 00:00:39,530 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-15 00:00:39,565 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 00:00:39,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 00:00:39,566 INFO L158 Benchmark]: Toolchain (without parser) took 1603.57ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 83.4MB in the beginning and 105.8MB in the end (delta: -22.4MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-12-15 00:00:39,567 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 94.9MB in the end (delta: 76.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:00:39,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.34ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 67.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-15 00:00:39,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.52ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 65.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:00:39,568 INFO L158 Benchmark]: Boogie Preprocessor took 17.05ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 63.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:00:39,568 INFO L158 Benchmark]: RCFGBuilder took 372.20ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 88.2MB in the end (delta: -24.4MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-12-15 00:00:39,569 INFO L158 Benchmark]: CodeCheck took 831.24ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 88.1MB in the beginning and 107.9MB in the end (delta: -19.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-12-15 00:00:39,569 INFO L158 Benchmark]: Witness Printer took 38.26ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:00:39,572 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, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 7 NumberOfNonLiveVariables, 236 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 562]: integer overflow possible integer overflow possible We found a FailurePath: [L575] CALL test_fun(__VERIFIER_nondet_int(),__VERIFIER_nondet_int(),__VERIFIER_nondet_int(),__VERIFIER_nondet_int()) [L549] int* x_ref = __builtin_alloca (sizeof(int)); [L550] int* y_ref = __builtin_alloca (sizeof(int)); [L551] int* z_ref = __builtin_alloca (sizeof(int)); [L552] int* flag_ref = __builtin_alloca (sizeof(int)); [L553] int* c = __builtin_alloca (sizeof(int)); [L554] flag = 1 [L555] *x_ref = x [L556] *y_ref = y [L557] *z_ref = z [L558] *flag_ref = flag [L559] *c = 0 VAL [\old(flag)=0, \old(x)=134217728, \old(y)=16, \old(z)=17, __builtin_alloca (sizeof(int))={134217732:0}, __builtin_alloca (sizeof(int))={134217728:0}, __builtin_alloca (sizeof(int))={134217729:0}, __builtin_alloca (sizeof(int))={134217730:0}, __builtin_alloca (sizeof(int))={134217731:0}, c={134217728:0}, flag=1, flag_ref={134217730:0}, x=134217728, x_ref={134217729:0}, y=16, y_ref={134217732:0}, z=17, z_ref={134217731:0}] [L560] EXPR \read(*y_ref) [L560] EXPR \read(*z_ref) [L560] (*y_ref < *z_ref) && (*flag_ref > 0) [L560] EXPR \read(*flag_ref) [L560] (*y_ref < *z_ref) && (*flag_ref > 0) VAL [(*y_ref < *z_ref) && (*flag_ref > 0)=1, \old(flag)=0, \old(x)=134217728, \old(y)=16, \old(z)=17, \read(*flag_ref)=1, \read(*y_ref)=16, \read(*z_ref)=17, __builtin_alloca (sizeof(int))={134217732:0}, __builtin_alloca (sizeof(int))={134217728:0}, __builtin_alloca (sizeof(int))={134217729:0}, __builtin_alloca (sizeof(int))={134217730:0}, __builtin_alloca (sizeof(int))={134217731:0}, c={134217728:0}, flag=1, flag_ref={134217730:0}, x=134217728, x_ref={134217729:0}, y=16, y_ref={134217732:0}, z=17, z_ref={134217731:0}] [L560] COND TRUE (*y_ref < *z_ref) && (*flag_ref > 0) [L561] EXPR \read(*y_ref) [L561] (*y_ref > 0) && (*x_ref > 1) [L561] EXPR \read(*x_ref) [L561] (*y_ref > 0) && (*x_ref > 1) VAL [(*y_ref > 0) && (*x_ref > 1)=1, \old(flag)=0, \old(x)=134217728, \old(y)=16, \old(z)=17, \read(*x_ref)=134217728, \read(*y_ref)=16, __builtin_alloca (sizeof(int))={134217732:0}, __builtin_alloca (sizeof(int))={134217728:0}, __builtin_alloca (sizeof(int))={134217729:0}, __builtin_alloca (sizeof(int))={134217730:0}, __builtin_alloca (sizeof(int))={134217731:0}, c={134217728:0}, flag=1, flag_ref={134217730:0}, x=134217728, x_ref={134217729:0}, y=16, y_ref={134217732:0}, z=17, z_ref={134217731:0}] [L561] COND TRUE (*y_ref > 0) && (*x_ref > 1) [L562] EXPR \read(*x_ref) [L562] EXPR \read(*y_ref) VAL [\old(flag)=0, \old(x)=134217728, \old(y)=16, \old(z)=17, \read(*x_ref)=134217728, \read(*y_ref)=16, __builtin_alloca (sizeof(int))={134217732:0}, __builtin_alloca (sizeof(int))={134217728:0}, __builtin_alloca (sizeof(int))={134217729:0}, __builtin_alloca (sizeof(int))={134217730:0}, __builtin_alloca (sizeof(int))={134217731:0}, c={134217728:0}, flag=1, flag_ref={134217730:0}, x=134217728, x_ref={134217729:0}, y=16, y_ref={134217732:0}, z=17, z_ref={134217731:0}] [L562] (*x_ref) * (*y_ref) VAL [\old(flag)=0, \old(x)=134217728, \old(y)=16, \old(z)=17, \read(*x_ref)=134217728, \read(*y_ref)=16, __builtin_alloca (sizeof(int))={134217732:0}, __builtin_alloca (sizeof(int))={134217728:0}, __builtin_alloca (sizeof(int))={134217729:0}, __builtin_alloca (sizeof(int))={134217730:0}, __builtin_alloca (sizeof(int))={134217731:0}, c={134217728:0}, flag=1, flag_ref={134217730:0}, x=134217728, x_ref={134217729:0}, y=16, y_ref={134217732:0}, z=17, z_ref={134217731:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 94.9MB in the end (delta: 76.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.34ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 67.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.52ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 65.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.05ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 63.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.20ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 88.2MB in the end (delta: -24.4MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * CodeCheck took 831.24ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 88.1MB in the beginning and 107.9MB in the end (delta: -19.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 38.26ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-15 00:00:39,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ebedd66-6832-4cca-8853-6845287990cd/bin/ukojak-rkRKPMF4O4/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)