./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4 --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 3d5962362825282ae42e15c2becb997ecc48fe70f2dab3f327a660cebbeb623f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 20:57:25,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 20:57:25,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 20:57:25,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 20:57:25,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 20:57:25,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 20:57:25,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 20:57:25,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 20:57:25,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 20:57:25,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 20:57:25,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 20:57:25,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 20:57:25,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 20:57:25,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 20:57:25,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 20:57:25,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 20:57:25,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 20:57:25,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 20:57:25,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 20:57:25,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 20:57:25,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 20:57:25,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 20:57:25,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 20:57:25,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 20:57:25,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 20:57:25,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 20:57:25,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 20:57:25,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 20:57:25,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 20:57:25,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 20:57:25,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 20:57:25,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 20:57:25,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 20:57:25,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 20:57:25,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 20:57:25,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 20:57:25,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 20:57:25,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 20:57:25,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 20:57:25,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 20:57:25,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 20:57:25,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 20:57:25,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 20:57:25,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 20:57:25,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 20:57:25,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 20:57:25,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 20:57:25,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 20:57:25,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 20:57:25,871 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 20:57:25,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 20:57:25,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 20:57:25,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 20:57:25,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 20:57:25,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 20:57:25,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 20:57:25,872 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 20:57:25,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 20:57:25,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 20:57:25,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 20:57:25,872 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 20:57:25,873 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 20:57:25,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 20:57:25,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:57:25,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 20:57:25,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 20:57:25,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 20:57:25,873 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 20:57:25,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 20:57:25,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 20:57:25,874 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_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d5962362825282ae42e15c2becb997ecc48fe70f2dab3f327a660cebbeb623f [2022-12-14 20:57:26,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 20:57:26,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 20:57:26,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 20:57:26,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 20:57:26,074 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 20:57:26,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c [2022-12-14 20:57:28,619 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 20:57:28,739 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 20:57:28,740 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c [2022-12-14 20:57:28,744 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/data/429737237/1b85485b0ecf48a7bb55cffe4d39cb2f/FLAG5424a46ad [2022-12-14 20:57:28,756 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/data/429737237/1b85485b0ecf48a7bb55cffe4d39cb2f [2022-12-14 20:57:28,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 20:57:28,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 20:57:28,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 20:57:28,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 20:57:28,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 20:57:28,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2da0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28, skipping insertion in model container [2022-12-14 20:57:28,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 20:57:28,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 20:57:28,881 WARN L237 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_1cd5d417-acfc-431c-960e-18f5aa7a5599/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c[524,537] [2022-12-14 20:57:28,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:57:28,899 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 20:57:28,908 WARN L237 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_1cd5d417-acfc-431c-960e-18f5aa7a5599/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c[524,537] [2022-12-14 20:57:28,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:57:28,922 INFO L208 MainTranslator]: Completed translation [2022-12-14 20:57:28,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28 WrapperNode [2022-12-14 20:57:28,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 20:57:28,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 20:57:28,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 20:57:28,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 20:57:28,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,946 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-12-14 20:57:28,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 20:57:28,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 20:57:28,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 20:57:28,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 20:57:28,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 20:57:28,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 20:57:28,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 20:57:28,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 20:57:28,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:57:28" (1/1) ... [2022-12-14 20:57:28,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:57:28,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 20:57:28,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 20:57:28,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 20:57:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 20:57:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 20:57:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 20:57:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 20:57:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 20:57:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 20:57:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 20:57:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 20:57:29,059 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 20:57:29,060 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 20:57:29,147 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 20:57:29,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 20:57:29,167 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 20:57:29,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:57:29 BoogieIcfgContainer [2022-12-14 20:57:29,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 20:57:29,170 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 20:57:29,170 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 20:57:29,178 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 20:57:29,178 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:57:29" (1/1) ... [2022-12-14 20:57:29,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 20:57:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:57:29,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-12-14 20:57:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-12-14 20:57:29,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 20:57:29,231 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:57:29,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:57:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:57:29,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 20:57:29,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:57:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 20:57:29,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:57:29,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 33 transitions. [2022-12-14 20:57:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-12-14 20:57:29,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 20:57:29,925 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:57:29,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:57:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:57:29,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 20:57:29,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:57:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 20:57:30,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:57:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 39 transitions. [2022-12-14 20:57:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-12-14 20:57:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 20:57:30,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:57:30,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:57:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:57:30,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 20:57:30,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:57:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 20:57:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:57:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 19 states and 22 transitions. [2022-12-14 20:57:30,858 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-14 20:57:30,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 20:57:30,859 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2022-12-14 20:57:30,865 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-14 20:57:30,891 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 20:57:30,895 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 20:57:30,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 08:57:30 ImpRootNode [2022-12-14 20:57:30,895 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 20:57:30,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 20:57:30,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 20:57:30,896 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 20:57:30,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:57:29" (3/4) ... [2022-12-14 20:57:30,899 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 20:57:30,903 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-14 20:57:30,903 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 20:57:30,906 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-14 20:57:30,906 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 20:57:30,906 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 20:57:30,906 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 20:57:30,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 20:57:30,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 20:57:30,932 INFO L158 Benchmark]: Toolchain (without parser) took 2173.75ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 90.9MB in the beginning and 98.6MB in the end (delta: -7.7MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-12-14 20:57:30,933 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 91.0MB in the beginning and 91.0MB in the end (delta: 26.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:57:30,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.52ms. Allocated memory is still 125.8MB. Free memory was 90.6MB in the beginning and 80.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 20:57:30,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.59ms. Allocated memory is still 125.8MB. Free memory was 80.1MB in the beginning and 78.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:57:30,934 INFO L158 Benchmark]: Boogie Preprocessor took 13.97ms. Allocated memory is still 125.8MB. Free memory was 78.7MB in the beginning and 77.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:57:30,934 INFO L158 Benchmark]: RCFGBuilder took 208.59ms. Allocated memory is still 125.8MB. Free memory was 77.6MB in the beginning and 65.4MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 20:57:30,934 INFO L158 Benchmark]: CodeCheck took 1725.44ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 65.4MB in the beginning and 101.6MB in the end (delta: -36.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-12-14 20:57:30,935 INFO L158 Benchmark]: Witness Printer took 36.17ms. Allocated memory is still 172.0MB. Free memory was 101.6MB in the beginning and 98.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:57:30,937 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 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 64 mSDtfsCounter, 219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 586 GetRequests, 547 SyntacticMatches, 7 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 3 QuantifiedInterpolants, 392 SizeOfPredicates, 14 NumberOfNonLiveVariables, 260 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 35/42 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: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 91.0MB in the beginning and 91.0MB in the end (delta: 26.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.52ms. Allocated memory is still 125.8MB. Free memory was 90.6MB in the beginning and 80.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.59ms. Allocated memory is still 125.8MB. Free memory was 80.1MB in the beginning and 78.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.97ms. Allocated memory is still 125.8MB. Free memory was 78.7MB in the beginning and 77.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 208.59ms. Allocated memory is still 125.8MB. Free memory was 77.6MB in the beginning and 65.4MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1725.44ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 65.4MB in the beginning and 101.6MB in the end (delta: -36.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 36.17ms. Allocated memory is still 172.0MB. Free memory was 101.6MB in the beginning and 98.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 20:57:30,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd5d417-acfc-431c-960e-18f5aa7a5599/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE