./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/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_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/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_d85128d0-9032-4446-b53c-08b1e542d35d/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 623f8e570c67201db9fc7be447d74d083955ca752401303f9fce588b7571c3af --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-15 00:40:01,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 00:40:01,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 00:40:01,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 00:40:01,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 00:40:01,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 00:40:01,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 00:40:01,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 00:40:01,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 00:40:01,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 00:40:01,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 00:40:01,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 00:40:01,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 00:40:01,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 00:40:01,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 00:40:01,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 00:40:01,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 00:40:01,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 00:40:01,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 00:40:01,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 00:40:01,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 00:40:01,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 00:40:01,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 00:40:01,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 00:40:01,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 00:40:01,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 00:40:01,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 00:40:01,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 00:40:01,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 00:40:01,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 00:40:01,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 00:40:01,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 00:40:01,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 00:40:01,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 00:40:01,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 00:40:01,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 00:40:01,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 00:40:01,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 00:40:01,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 00:40:01,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 00:40:01,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 00:40:01,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-15 00:40:01,510 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 00:40:01,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 00:40:01,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 00:40:01,511 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 00:40:01,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 00:40:01,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 00:40:01,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 00:40:01,512 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 00:40:01,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 00:40:01,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 00:40:01,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 00:40:01,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 00:40:01,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 00:40:01,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 00:40:01,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 00:40:01,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 00:40:01,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 00:40:01,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 00:40:01,513 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 00:40:01,514 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 00:40:01,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 00:40:01,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:40:01,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 00:40:01,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 00:40:01,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 00:40:01,515 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 00:40:01,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 00:40:01,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 00:40:01,525 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_d85128d0-9032-4446-b53c-08b1e542d35d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 623f8e570c67201db9fc7be447d74d083955ca752401303f9fce588b7571c3af [2022-12-15 00:40:01,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 00:40:01,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 00:40:01,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 00:40:01,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 00:40:01,707 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 00:40:01,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2022-12-15 00:40:04,425 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 00:40:04,579 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 00:40:04,580 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2022-12-15 00:40:04,585 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/data/34fcc5d1d/a2a5427fad1045849f39044b06529e75/FLAG51c1744b0 [2022-12-15 00:40:04,597 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/data/34fcc5d1d/a2a5427fad1045849f39044b06529e75 [2022-12-15 00:40:04,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 00:40:04,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 00:40:04,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 00:40:04,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 00:40:04,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 00:40:04,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b34d60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04, skipping insertion in model container [2022-12-15 00:40:04,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 00:40:04,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 00:40:04,738 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_d85128d0-9032-4446-b53c-08b1e542d35d/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2022-12-15 00:40:04,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:40:04,759 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 00:40:04,768 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_d85128d0-9032-4446-b53c-08b1e542d35d/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2022-12-15 00:40:04,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:40:04,787 INFO L208 MainTranslator]: Completed translation [2022-12-15 00:40:04,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04 WrapperNode [2022-12-15 00:40:04,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 00:40:04,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 00:40:04,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 00:40:04,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 00:40:04,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,812 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-12-15 00:40:04,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 00:40:04,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 00:40:04,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 00:40:04,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 00:40:04,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,828 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 00:40:04,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 00:40:04,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 00:40:04,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 00:40:04,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:40:04" (1/1) ... [2022-12-15 00:40:04,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:40:04,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 00:40:04,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 00:40:04,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 00:40:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 00:40:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 00:40:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 00:40:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 00:40:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-15 00:40:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-15 00:40:04,953 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 00:40:04,954 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 00:40:05,043 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 00:40:05,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 00:40:05,074 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-15 00:40:05,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:40:05 BoogieIcfgContainer [2022-12-15 00:40:05,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 00:40:05,076 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 00:40:05,076 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 00:40:05,083 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 00:40:05,084 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:40:05" (1/1) ... [2022-12-15 00:40:05,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 00:40:05,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2022-12-15 00:40:05,129 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2022-12-15 00:40:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:40:05,130 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:05,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:40:05,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2022-12-15 00:40:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2022-12-15 00:40:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-15 00:40:05,471 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:05,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:05,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-15 00:40:05,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:40:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2022-12-15 00:40:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2022-12-15 00:40:05,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-15 00:40:05,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:05,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-15 00:40:05,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:05,928 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 00:40:06,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:06,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 25 states and 42 transitions. [2022-12-15 00:40:06,021 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2022-12-15 00:40:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-15 00:40:06,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:06,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:06,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 00:40:06,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:06,093 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 00:40:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2022-12-15 00:40:06,199 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2022-12-15 00:40:06,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-15 00:40:06,200 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:06,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:06,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-15 00:40:06,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-15 00:40:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:06,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2022-12-15 00:40:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2022-12-15 00:40:06,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-15 00:40:06,453 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:06,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:06,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 00:40:06,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-15 00:40:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2022-12-15 00:40:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2022-12-15 00:40:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-15 00:40:06,688 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:06,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:06,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-15 00:40:06,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-15 00:40:06,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2022-12-15 00:40:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2022-12-15 00:40:06,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-15 00:40:06,972 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:06,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:06,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 00:40:06,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-15 00:40:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:07,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2022-12-15 00:40:07,434 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2022-12-15 00:40:07,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-15 00:40:07,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:07,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:07,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-15 00:40:07,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-15 00:40:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2022-12-15 00:40:07,716 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2022-12-15 00:40:07,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-15 00:40:07,716 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:07,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:07,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 00:40:07,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-15 00:40:07,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:07,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2022-12-15 00:40:07,835 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2022-12-15 00:40:07,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-15 00:40:07,836 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:07,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:07,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-15 00:40:07,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-15 00:40:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:08,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2022-12-15 00:40:08,125 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2022-12-15 00:40:08,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-15 00:40:08,126 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:08,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:08,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 00:40:08,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-12-15 00:40:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:08,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2022-12-15 00:40:08,219 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2022-12-15 00:40:08,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-15 00:40:08,221 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:08,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:08,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-15 00:40:08,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-12-15 00:40:08,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:08,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2022-12-15 00:40:08,600 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2022-12-15 00:40:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-15 00:40:08,600 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:08,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:08,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-15 00:40:08,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 15 proven. 35 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-15 00:40:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:08,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2022-12-15 00:40:08,943 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2022-12-15 00:40:08,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-15 00:40:08,944 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:08,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:08,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 00:40:08,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-12-15 00:40:09,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2022-12-15 00:40:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2022-12-15 00:40:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-15 00:40:09,077 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:09,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:09,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-15 00:40:09,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-12-15 00:40:09,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:09,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 79 transitions. [2022-12-15 00:40:09,447 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2022-12-15 00:40:09,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-15 00:40:09,447 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:09,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:09,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-15 00:40:09,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-12-15 00:40:09,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:09,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 78 transitions. [2022-12-15 00:40:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2022-12-15 00:40:09,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-15 00:40:09,544 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:40:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:40:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:40:09,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-15 00:40:09,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 00:40:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 68 proven. 10 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-12-15 00:40:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:40:10,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 25 states and 37 transitions. [2022-12-15 00:40:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2022-12-15 00:40:10,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 00:40:10,288 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 19 iterations. [2022-12-15 00:40:10,294 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-15 00:40:10,568 INFO L560 CodeCheckObserver]: Invariant with dag size 25 [2022-12-15 00:40:10,574 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 00:40:10,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 12:40:10 ImpRootNode [2022-12-15 00:40:10,575 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 00:40:10,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 00:40:10,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 00:40:10,575 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 00:40:10,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:40:05" (3/4) ... [2022-12-15 00:40:10,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 00:40:10,581 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-15 00:40:10,583 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-15 00:40:10,584 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-15 00:40:10,584 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-15 00:40:10,584 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 00:40:10,608 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 00:40:10,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 00:40:10,609 INFO L158 Benchmark]: Toolchain (without parser) took 6009.25ms. Allocated memory is still 220.2MB. Free memory was 191.0MB in the beginning and 139.8MB in the end (delta: 51.1MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2022-12-15 00:40:10,609 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:40:10,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.91ms. Allocated memory is still 220.2MB. Free memory was 190.8MB in the beginning and 186.2MB in the end (delta: 4.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2022-12-15 00:40:10,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.26ms. Allocated memory is still 220.2MB. Free memory was 186.2MB in the beginning and 184.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:40:10,610 INFO L158 Benchmark]: Boogie Preprocessor took 17.39ms. Allocated memory is still 220.2MB. Free memory was 184.1MB in the beginning and 183.2MB in the end (delta: 908.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:40:10,611 INFO L158 Benchmark]: RCFGBuilder took 244.49ms. Allocated memory is still 220.2MB. Free memory was 183.2MB in the beginning and 171.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-15 00:40:10,611 INFO L158 Benchmark]: CodeCheck took 5498.73ms. Allocated memory is still 220.2MB. Free memory was 170.6MB in the beginning and 141.8MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-15 00:40:10,611 INFO L158 Benchmark]: Witness Printer took 33.35ms. Allocated memory is still 220.2MB. Free memory was 141.8MB in the beginning and 139.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:40:10,613 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 19, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1092 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 287 mSDsluCounter, 604 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 380 mSDsCounter, 1453 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3520 IncrementalHoareTripleChecker+Invalid, 4973 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1453 mSolverCounterUnsat, 224 mSDtfsCounter, 3520 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4875 GetRequests, 4646 SyntacticMatches, 119 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5712 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 652 NumberOfCodeBlocks, 652 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 2040 SizeOfPredicates, 38 NumberOfNonLiveVariables, 1882 ConjunctsInSsa, 275 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 1338/1529 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: 30]: Loop Invariant Derived loop invariant: ((a == 1 && s == 4) || (9 == s && 2 == a)) || (!(5 == t && 2 == a) && !(t == 1 + 2 * a && 2 == 2 * a)) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.91ms. Allocated memory is still 220.2MB. Free memory was 190.8MB in the beginning and 186.2MB in the end (delta: 4.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.26ms. Allocated memory is still 220.2MB. Free memory was 186.2MB in the beginning and 184.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.39ms. Allocated memory is still 220.2MB. Free memory was 184.1MB in the beginning and 183.2MB in the end (delta: 908.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 244.49ms. Allocated memory is still 220.2MB. Free memory was 183.2MB in the beginning and 171.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 5498.73ms. Allocated memory is still 220.2MB. Free memory was 170.6MB in the beginning and 141.8MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 33.35ms. Allocated memory is still 220.2MB. Free memory was 141.8MB in the beginning and 139.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-15 00:40:10,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d85128d0-9032-4446-b53c-08b1e542d35d/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