./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB --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 1cbace5580915338bbd4f6efe69f1fa46dac7d6ce729fb2189890b13c893a5f0 --- 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-dbf71c6-m [2022-10-17 17:01:20,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:01:20,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:01:20,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:01:20,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:01:20,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:01:20,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:01:20,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:01:20,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:01:20,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:01:20,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:01:20,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:01:20,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:01:20,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:01:20,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:01:20,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:01:20,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:01:20,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:01:20,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:01:20,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:01:20,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:01:20,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:01:20,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:01:20,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:01:20,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:01:20,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:01:20,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:01:20,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:01:20,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:01:20,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:01:20,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:01:20,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:01:20,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:01:20,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:01:20,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:01:20,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:01:20,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:01:20,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:01:20,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:01:20,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:01:20,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:01:20,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 17:01:20,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:01:20,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:01:20,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:01:20,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:01:20,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:01:20,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:01:20,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:01:20,852 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:01:20,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:01:20,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:01:20,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:01:20,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:01:20,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:01:20,855 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 17:01:20,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:01:20,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:01:20,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:01:20,856 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:01:20,856 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:01:20,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:01:20,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:01:20,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:01:20,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:01:20,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:01:20,858 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:01:20,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:01:20,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:01:20,858 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_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cbace5580915338bbd4f6efe69f1fa46dac7d6ce729fb2189890b13c893a5f0 [2022-10-17 17:01:21,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:01:21,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:01:21,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:01:21,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:01:21,200 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:01:21,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c [2022-10-17 17:01:21,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/data/a0e3dc640/e02f27fdb4ce459ebbd15fa2237797ab/FLAG689169842 [2022-10-17 17:01:21,810 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:01:21,811 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.03.c [2022-10-17 17:01:21,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/data/a0e3dc640/e02f27fdb4ce459ebbd15fa2237797ab/FLAG689169842 [2022-10-17 17:01:22,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/data/a0e3dc640/e02f27fdb4ce459ebbd15fa2237797ab [2022-10-17 17:01:22,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:01:22,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:01:22,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:01:22,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:01:22,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:01:22,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27253396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22, skipping insertion in model container [2022-10-17 17:01:22,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:01:22,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:01:22,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:01:22,532 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:01:22,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:01:22,564 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:01:22,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22 WrapperNode [2022-10-17 17:01:22,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:01:22,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:01:22,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:01:22,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:01:22,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,601 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-10-17 17:01:22,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:01:22,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:01:22,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:01:22,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:01:22,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:01:22,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:01:22,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:01:22,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:01:22,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:22,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:01:22,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:01:22,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:01:22,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:01:22,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:01:22,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:01:22,844 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:01:22,847 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:01:22,972 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:01:22,988 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:01:22,988 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:01:22,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:01:22 BoogieIcfgContainer [2022-10-17 17:01:22,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:01:22,992 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:01:22,992 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:01:23,004 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:01:23,004 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:01:22" (1/1) ... [2022-10-17 17:01:23,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:01:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2022-10-17 17:01:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-10-17 17:01:23,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:01:23,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:23,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:23,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:23,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2022-10-17 17:01:23,355 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-10-17 17:01:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:01:23,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:23,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:01:23,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:01:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:01:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:01:23,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:01:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:01:23,463 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 17:01:23,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:01:23 ImpRootNode [2022-10-17 17:01:23,521 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:01:23,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:01:23,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:01:23,523 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:01:23,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:01:22" (3/4) ... [2022-10-17 17:01:23,525 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:01:23,573 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:01:23,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:01:23,581 INFO L158 Benchmark]: Toolchain (without parser) took 1283.44ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 47.1MB in the beginning and 75.9MB in the end (delta: -28.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:01:23,583 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 81.8MB. Free memory was 63.4MB in the beginning and 63.3MB in the end (delta: 91.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:01:23,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.11ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 46.9MB in the beginning and 79.7MB in the end (delta: -32.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-10-17 17:01:23,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.91ms. Allocated memory is still 102.8MB. Free memory was 79.7MB in the beginning and 78.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:01:23,587 INFO L158 Benchmark]: Boogie Preprocessor took 29.79ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 77.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:01:23,589 INFO L158 Benchmark]: RCFGBuilder took 355.00ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 68.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:01:23,591 INFO L158 Benchmark]: CodeCheck took 529.13ms. Allocated memory is still 102.8MB. Free memory was 68.1MB in the beginning and 77.4MB in the end (delta: -9.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:01:23,593 INFO L158 Benchmark]: Witness Printer took 51.17ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 75.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:01:23,596 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 2 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, oldx; [L24] x = __VERIFIER_nondet_int() [L25] oldx = __VERIFIER_nondet_int() [L26] x > 1 && -2*x == oldx VAL [x=0, x=1073741825, x > 1 && -2*x == oldx=1] [L26] -2*x VAL [x=1073741825, x=0, x > 1 && -2*x == oldx=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 81.8MB. Free memory was 63.4MB in the beginning and 63.3MB in the end (delta: 91.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.11ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 46.9MB in the beginning and 79.7MB in the end (delta: -32.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.91ms. Allocated memory is still 102.8MB. Free memory was 79.7MB in the beginning and 78.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.79ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 77.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 355.00ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 68.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 529.13ms. Allocated memory is still 102.8MB. Free memory was 68.1MB in the beginning and 77.4MB in the end (delta: -9.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.17ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 75.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 17:01:23,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b8eb67-4027-48e8-b10c-21958af86693/bin/ukojak-92XMlrwhuB/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)