./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/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_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb642764a70597a56a9c7e88ddf473ddd44e8ae88be573923352b61cd2189845 --- 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 16:32:31,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:32:31,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:32:31,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:32:31,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:32:31,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:32:31,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:32:31,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:32:31,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:32:31,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:32:31,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:32:31,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:32:31,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:32:31,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:32:31,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:32:31,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:32:31,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:32:31,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:32:31,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:32:31,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:32:31,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:32:31,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:32:31,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:32:31,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:32:31,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:32:31,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:32:31,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:32:31,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:32:31,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:32:31,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:32:31,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:32:31,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:32:31,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:32:31,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:32:31,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:32:31,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:32:31,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:32:31,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:32:31,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:32:31,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:32:31,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:32:31,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:32:31,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:32:31,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:32:31,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:32:31,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:32:31,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:32:31,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:32:31,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:32:31,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:32:31,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:32:31,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:32:31,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:32:31,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:32:31,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:32:31,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:32:31,623 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:32:31,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:32:31,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:32:31,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:32:31,624 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:32:31,624 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:32:31,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:32:31,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:32:31,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:32:31,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:32:31,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:32:31,625 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:32:31,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:32:31,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:32:31,626 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_1724dfd4-7a83-4f51-849d-ea31bcd823a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb642764a70597a56a9c7e88ddf473ddd44e8ae88be573923352b61cd2189845 [2022-10-17 16:32:31,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:32:31,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:32:31,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:32:31,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:32:31,944 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:32:31,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2022-10-17 16:32:32,021 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/data/f1f0ec4fd/ff389c0abc6c40428117d3859762c97e/FLAG9b1356c1d [2022-10-17 16:32:32,489 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:32:32,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2022-10-17 16:32:32,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/data/f1f0ec4fd/ff389c0abc6c40428117d3859762c97e/FLAG9b1356c1d [2022-10-17 16:32:32,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/data/f1f0ec4fd/ff389c0abc6c40428117d3859762c97e [2022-10-17 16:32:32,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:32:32,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:32:32,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:32:32,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:32:32,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:32:32,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:32:32" (1/1) ... [2022-10-17 16:32:32,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531e669a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:32, skipping insertion in model container [2022-10-17 16:32:32,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:32:32" (1/1) ... [2022-10-17 16:32:32,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:32:32,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:32:33,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c[718,731] [2022-10-17 16:32:33,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:32:33,116 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:32:33,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c[718,731] [2022-10-17 16:32:33,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:32:33,154 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:32:33,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33 WrapperNode [2022-10-17 16:32:33,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:32:33,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:32:33,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:32:33,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:32:33,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,211 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-10-17 16:32:33,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:32:33,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:32:33,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:32:33,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:32:33,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,239 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:32:33,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:32:33,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:32:33,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:32:33,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:32:33,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:32:33,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:32:33,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:32:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure A [2022-10-17 16:32:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure A [2022-10-17 16:32:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:32:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:32:33,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:32:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:32:33,387 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:32:33,389 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:32:33,496 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:32:33,518 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:32:33,518 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:32:33,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:32:33 BoogieIcfgContainer [2022-10-17 16:32:33,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:32:33,523 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:32:33,523 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:32:33,536 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:32:33,537 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:32:33" (1/1) ... [2022-10-17 16:32:33,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:32:33,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2022-10-17 16:32:33,605 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-10-17 16:32:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:32:33,611 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:33,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:33,982 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:32:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:34,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2022-10-17 16:32:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-10-17 16:32:34,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:32:34,251 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:34,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:32:34,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:32:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:32:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:32:34,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:32:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:32:34,440 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 16:32:34,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:32:34 ImpRootNode [2022-10-17 16:32:34,491 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:32:34,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:32:34,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:32:34,492 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:32:34,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:32:33" (3/4) ... [2022-10-17 16:32:34,494 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:32:34,545 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:32:34,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:32:34,554 INFO L158 Benchmark]: Toolchain (without parser) took 1691.13ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 63.1MB in the beginning and 72.1MB in the end (delta: -9.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-10-17 16:32:34,555 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 88.1MB. Free memory was 57.8MB in the beginning and 57.8MB in the end (delta: 9.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:32:34,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.00ms. Allocated memory is still 88.1MB. Free memory was 62.9MB in the beginning and 63.3MB in the end (delta: -364.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:32:34,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.87ms. Allocated memory is still 88.1MB. Free memory was 63.3MB in the beginning and 61.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:32:34,558 INFO L158 Benchmark]: Boogie Preprocessor took 31.87ms. Allocated memory is still 88.1MB. Free memory was 61.8MB in the beginning and 60.8MB in the end (delta: 997.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:32:34,566 INFO L158 Benchmark]: RCFGBuilder took 276.37ms. Allocated memory is still 88.1MB. Free memory was 60.7MB in the beginning and 51.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:32:34,567 INFO L158 Benchmark]: CodeCheck took 968.14ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 51.1MB in the beginning and 74.8MB in the end (delta: -23.7MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-10-17 16:32:34,567 INFO L158 Benchmark]: Witness Printer took 61.69ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 72.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:32:34,570 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 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 14 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 1/4 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: 33]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int g; [L28] int g = __VERIFIER_nondet_int(); [L29] int h = !g; VAL [g=0, g=-1, h=0] [L30] CALL A(g,h) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, g=0] [L19] COND TRUE \read(a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, a1=-1, a2=0, g=0] [L20] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, g=0] [L19] COND FALSE !(\read(a1)) [L22] g = a2 VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, a1=0, a2=-1, g=-1] [L20] RET A(a2,a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, A(a2,a1)=0, a1=-1, a2=0, g=-1] [L30] RET A(g,h) VAL [A(g,h)=0, g=-1, g=-1, h=0] [L31] CALL A(g,h) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, g=-1] [L19] COND TRUE \read(a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, a1=-1, a2=0, g=-1] [L20] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, g=-1] [L19] COND FALSE !(\read(a1)) [L22] g = a2 VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, a1=0, a2=-1, g=-1] [L20] RET A(a2,a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, A(a2,a1)=0, a1=-1, a2=0, g=-1] [L31] RET A(g,h) VAL [A(g,h)=0, g=-1, g=-1, h=0] [L32] COND TRUE \read(g) VAL [g=-1, g=-1, h=0] [L33] reach_error() VAL [g=-1, g=-1, h=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 88.1MB. Free memory was 57.8MB in the beginning and 57.8MB in the end (delta: 9.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.00ms. Allocated memory is still 88.1MB. Free memory was 62.9MB in the beginning and 63.3MB in the end (delta: -364.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.87ms. Allocated memory is still 88.1MB. Free memory was 63.3MB in the beginning and 61.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.87ms. Allocated memory is still 88.1MB. Free memory was 61.8MB in the beginning and 60.8MB in the end (delta: 997.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.37ms. Allocated memory is still 88.1MB. Free memory was 60.7MB in the beginning and 51.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 968.14ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 51.1MB in the beginning and 74.8MB in the end (delta: -23.7MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 61.69ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 72.1MB 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! [2022-10-17 16:32:34,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1724dfd4-7a83-4f51-849d-ea31bcd823a9/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