./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.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_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/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_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/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_5d8f2270-2256-47e1-aa5c-bb988cce9447/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 d6c389695f28ab23288d12eab23e55426fe9ec0f0b8fe9723cca18e00c3db8b7 --- 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 16:34:15,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:34:15,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:34:15,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:34:15,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:34:15,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:34:15,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:34:15,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:34:15,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:34:15,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:34:15,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:34:15,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:34:15,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:34:15,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:34:15,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:34:15,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:34:15,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:34:15,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:34:15,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:34:15,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:34:15,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:34:15,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:34:15,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:34:15,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:34:15,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:34:15,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:34:15,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:34:15,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:34:15,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:34:15,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:34:15,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:34:15,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:34:15,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:34:15,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:34:15,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:34:15,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:34:15,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:34:15,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:34:15,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:34:15,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:34:15,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:34:15,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:34:15,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:34:15,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:34:15,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:34:15,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:34:15,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:34:15,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:34:15,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:34:15,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:34:15,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:34:15,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:34:15,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:34:15,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:34:16,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:34:16,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:34:16,000 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:34:16,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:34:16,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:34:16,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:34:16,001 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:34:16,001 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:34:16,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:34:16,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:34:16,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:34:16,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:34:16,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:34:16,003 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:34:16,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:34:16,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:34:16,006 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_5d8f2270-2256-47e1-aa5c-bb988cce9447/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6c389695f28ab23288d12eab23e55426fe9ec0f0b8fe9723cca18e00c3db8b7 [2022-10-17 16:34:16,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:34:16,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:34:16,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:34:16,342 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:34:16,343 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:34:16,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2022-10-17 16:34:16,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/data/41e156517/256ce75bc95643f0a07700380a9920e2/FLAG120cea13c [2022-10-17 16:34:16,832 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:34:16,833 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2022-10-17 16:34:16,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/data/41e156517/256ce75bc95643f0a07700380a9920e2/FLAG120cea13c [2022-10-17 16:34:17,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/data/41e156517/256ce75bc95643f0a07700380a9920e2 [2022-10-17 16:34:17,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:34:17,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:34:17,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:34:17,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:34:17,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:34:17,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186de5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17, skipping insertion in model container [2022-10-17 16:34:17,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:34:17,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:34:17,449 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_5d8f2270-2256-47e1-aa5c-bb988cce9447/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2022-10-17 16:34:17,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:34:17,476 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:34:17,489 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_5d8f2270-2256-47e1-aa5c-bb988cce9447/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2022-10-17 16:34:17,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:34:17,509 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:34:17,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17 WrapperNode [2022-10-17 16:34:17,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:34:17,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:34:17,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:34:17,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:34:17,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,545 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-10-17 16:34:17,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:34:17,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:34:17,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:34:17,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:34:17,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:34:17,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:34:17,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:34:17,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:34:17,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:17,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:34:17,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:34:17,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:34:17,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:34:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:34:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:34:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:34:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:34:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:34:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:34:17,717 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:34:17,722 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:34:17,941 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:34:17,984 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:34:17,984 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:34:17,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:17 BoogieIcfgContainer [2022-10-17 16:34:17,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:34:17,988 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:34:17,988 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:34:18,015 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:34:18,015 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:17" (1/1) ... [2022-10-17 16:34:18,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:34:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2022-10-17 16:34:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2022-10-17 16:34:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:34:18,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:18,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:18,253 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 16:34:18,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-10-17 16:34:18,291 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-10-17 16:34:18,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:34:18,292 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:18,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:18,444 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 16:34:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2022-10-17 16:34:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2022-10-17 16:34:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:34:18,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:18,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:18,726 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 16:34:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2022-10-17 16:34:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2022-10-17 16:34:19,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:34:19,058 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:19,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:19,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:34:19,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:19,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:34:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2022-10-17 16:34:19,734 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2022-10-17 16:34:19,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:34:19,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:19,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:19,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:34:19,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:34:20,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 54 transitions. [2022-10-17 16:34:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2022-10-17 16:34:20,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:34:20,055 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:20,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:20,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:20,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:20,257 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:34:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:20,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 33 states and 58 transitions. [2022-10-17 16:34:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2022-10-17 16:34:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:34:20,687 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:20,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:20,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:20,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:34:21,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:21,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 37 states and 66 transitions. [2022-10-17 16:34:21,508 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2022-10-17 16:34:21,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:34:21,509 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:21,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 16:34:21,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:34:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 47 states and 101 transitions. [2022-10-17 16:34:22,967 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 101 transitions. [2022-10-17 16:34:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:34:22,969 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:22,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:23,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:23,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:34:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 49 states and 102 transitions. [2022-10-17 16:34:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 102 transitions. [2022-10-17 16:34:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 16:34:23,489 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:23,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:23,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:23,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 16:34:24,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:24,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 51 states and 109 transitions. [2022-10-17 16:34:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 109 transitions. [2022-10-17 16:34:24,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:34:24,201 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:24,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:24,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:34:24,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:34:25,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:25,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 53 states and 118 transitions. [2022-10-17 16:34:25,330 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 118 transitions. [2022-10-17 16:34:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:34:25,332 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:25,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:34:25,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:34:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:26,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 52 states and 113 transitions. [2022-10-17 16:34:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 113 transitions. [2022-10-17 16:34:26,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 16:34:26,006 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:26,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:26,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:26,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-17 16:34:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 52 states and 112 transitions. [2022-10-17 16:34:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 112 transitions. [2022-10-17 16:34:27,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 16:34:27,590 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:27,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:27,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:27,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 16:34:28,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:28,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 53 states and 120 transitions. [2022-10-17 16:34:28,253 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 120 transitions. [2022-10-17 16:34:28,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 16:34:28,258 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:28,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:28,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:28,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:28,308 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-17 16:34:28,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 54 states and 122 transitions. [2022-10-17 16:34:28,513 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 122 transitions. [2022-10-17 16:34:28,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 16:34:28,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:28,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:28,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:34:28,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:34:30,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:30,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 66 states and 166 transitions. [2022-10-17 16:34:30,805 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 166 transitions. [2022-10-17 16:34:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 16:34:30,806 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:30,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:30,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:34:30,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 16:34:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:31,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 69 states and 172 transitions. [2022-10-17 16:34:31,799 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 172 transitions. [2022-10-17 16:34:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-17 16:34:31,800 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:31,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:31,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:34:31,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:34:32,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:32,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 38 states and 63 transitions. [2022-10-17 16:34:32,602 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2022-10-17 16:34:32,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 16:34:32,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:32,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:32,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:32,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-10-17 16:34:32,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:32,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 38 states and 62 transitions. [2022-10-17 16:34:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2022-10-17 16:34:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 16:34:32,853 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:32,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:32,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-17 16:34:32,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 16:34:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:33,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 32 states and 51 transitions. [2022-10-17 16:34:33,838 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2022-10-17 16:34:33,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:34:33,839 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 21 iterations. [2022-10-17 16:34:33,849 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:34:34,230 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:34:34,233 INFO L560 CodeCheckObserver]: Invariant with dag size 28 [2022-10-17 16:34:34,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:34:34 ImpRootNode [2022-10-17 16:34:34,242 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:34:34,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:34:34,243 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:34:34,243 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:34:34,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:17" (3/4) ... [2022-10-17 16:34:34,246 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:34:34,252 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:34:34,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 16:34:34,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 16:34:34,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:34:34,257 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:34:34,303 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:34:34,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:34:34,305 INFO L158 Benchmark]: Toolchain (without parser) took 17074.09ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 73.9MB in the beginning and 76.4MB in the end (delta: -2.5MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2022-10-17 16:34:34,305 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:34:34,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.74ms. Allocated memory is still 115.3MB. Free memory was 73.7MB in the beginning and 89.7MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:34:34,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.84ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 88.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:34:34,307 INFO L158 Benchmark]: Boogie Preprocessor took 23.54ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 87.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:34:34,308 INFO L158 Benchmark]: RCFGBuilder took 416.16ms. Allocated memory is still 115.3MB. Free memory was 87.2MB in the beginning and 76.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:34:34,309 INFO L158 Benchmark]: CodeCheck took 16254.12ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 76.2MB in the beginning and 79.6MB in the end (delta: -3.3MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. [2022-10-17 16:34:34,309 INFO L158 Benchmark]: Witness Printer took 61.45ms. Allocated memory is still 201.3MB. Free memory was 79.6MB in the beginning and 76.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:34:34,312 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.8s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1265 SdHoareTripleChecker+Valid, 13.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 873 SdHoareTripleChecker+Invalid, 11.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 224 mSDsCounter, 2475 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6550 IncrementalHoareTripleChecker+Invalid, 9025 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2475 mSolverCounterUnsat, 649 mSDtfsCounter, 6550 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5797 GetRequests, 5447 SyntacticMatches, 134 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23215 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 547 ConstructedInterpolants, 0 QuantifiedInterpolants, 2023 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1705 ConjunctsInSsa, 187 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 759/839 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((s == 2 + 2 * a && a == 1) || (!(5 == t && 2 == a) && !(counter <= 1))) || (!(3 == t && a == 1) && counter <= 1)) || (9 == s && !(counter <= 1)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.74ms. Allocated memory is still 115.3MB. Free memory was 73.7MB in the beginning and 89.7MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.84ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 88.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.54ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 87.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.16ms. Allocated memory is still 115.3MB. Free memory was 87.2MB in the beginning and 76.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 16254.12ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 76.2MB in the beginning and 79.6MB in the end (delta: -3.3MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. * Witness Printer took 61.45ms. Allocated memory is still 201.3MB. Free memory was 79.6MB in the beginning and 76.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:34:34,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8f2270-2256-47e1-aa5c-bb988cce9447/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 Result: TRUE