./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-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_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/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_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/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_e25b6d2b-d85f-447e-82b5-82b8fff48715/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 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 --- 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 21:54:22,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:54:22,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:54:22,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:54:22,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:54:22,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:54:22,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:54:22,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:54:22,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:54:22,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:54:22,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:54:22,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:54:22,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:54:22,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:54:22,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:54:22,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:54:22,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:54:22,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:54:22,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:54:22,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:54:22,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:54:22,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:54:22,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:54:22,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:54:22,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:54:22,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:54:22,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:54:22,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:54:22,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:54:22,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:54:22,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:54:22,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:54:22,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:54:22,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:54:22,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:54:22,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:54:22,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:54:22,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:54:22,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:54:22,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:54:22,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:54:22,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 21:54:22,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:54:22,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:54:22,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 21:54:22,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 21:54:22,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:54:22,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:54:22,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:54:22,772 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 21:54:22,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:54:22,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 21:54:22,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:54:22,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 21:54:22,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:54:22,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 21:54:22,773 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 21:54:22,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 21:54:22,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:54:22,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 21:54:22,774 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:54:22,774 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:54:22,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:54:22,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:54:22,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:54:22,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:54:22,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 21:54:22,775 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:54:22,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:54:22,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 21:54:22,776 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_e25b6d2b-d85f-447e-82b5-82b8fff48715/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 [2022-12-14 21:54:22,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:54:22,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:54:22,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:54:22,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:54:22,995 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:54:22,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2022-12-14 21:54:25,529 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:54:25,674 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:54:25,675 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2022-12-14 21:54:25,679 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/data/8aad84b79/6f2b3240cbe045b08a0e617d765de487/FLAG28660ce54 [2022-12-14 21:54:26,094 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/data/8aad84b79/6f2b3240cbe045b08a0e617d765de487 [2022-12-14 21:54:26,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:54:26,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:54:26,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:54:26,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:54:26,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:54:26,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b68667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26, skipping insertion in model container [2022-12-14 21:54:26,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:54:26,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:54:26,212 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_e25b6d2b-d85f-447e-82b5-82b8fff48715/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c[454,467] [2022-12-14 21:54:26,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:54:26,228 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:54:26,236 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_e25b6d2b-d85f-447e-82b5-82b8fff48715/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c[454,467] [2022-12-14 21:54:26,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:54:26,248 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:54:26,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26 WrapperNode [2022-12-14 21:54:26,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:54:26,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:54:26,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:54:26,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:54:26,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,271 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2022-12-14 21:54:26,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:54:26,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:54:26,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:54:26,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:54:26,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,285 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:54:26,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:54:26,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:54:26,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:54:26,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:54:26,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:54:26,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:54:26,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:54:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 21:54:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 21:54:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:54:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:54:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 21:54:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 21:54:26,387 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:54:26,389 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:54:26,475 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:54:26,503 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:54:26,503 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 21:54:26,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:54:26 BoogieIcfgContainer [2022-12-14 21:54:26,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:54:26,507 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:54:26,507 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:54:26,514 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:54:26,514 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:54:26" (1/1) ... [2022-12-14 21:54:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:54:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:26,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2022-12-14 21:54:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-12-14 21:54:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 21:54:26,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:54:26,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:54:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:54:26,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 21:54:26,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:54:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:54:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2022-12-14 21:54:26,845 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-12-14 21:54:26,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 21:54:26,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:54:26,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:54:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:54:26,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 21:54:26,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:54:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:54:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:27,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2022-12-14 21:54:27,103 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-12-14 21:54:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 21:54:27,104 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:54:27,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:54:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:54:27,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 21:54:27,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:54:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:54:27,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:27,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2022-12-14 21:54:27,324 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-12-14 21:54:27,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 21:54:27,324 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:54:27,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:54:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:54:27,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 21:54:27,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:54:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 21:54:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2022-12-14 21:54:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2022-12-14 21:54:27,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 21:54:27,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:54:27,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:54:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:54:27,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 21:54:27,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:54:27,702 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 21:54:27,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2022-12-14 21:54:27,924 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2022-12-14 21:54:27,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 21:54:27,925 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:54:27,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:54:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:54:27,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 21:54:27,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:54:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 27 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 21:54:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:28,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2022-12-14 21:54:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2022-12-14 21:54:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 21:54:28,343 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:54:28,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:54:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:54:28,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 21:54:28,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:54:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 21 proven. 41 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 21:54:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2022-12-14 21:54:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2022-12-14 21:54:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 21:54:28,855 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:54:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:54:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:54:28,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 21:54:28,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:54:29,092 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 21:54:30,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:54:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 26 states and 36 transitions. [2022-12-14 21:54:30,094 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-12-14 21:54:30,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 21:54:30,095 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2022-12-14 21:54:30,102 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-14 21:54:30,190 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 21:54:30,194 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 21:54:30,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:54:30 ImpRootNode [2022-12-14 21:54:30,194 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:54:30,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:54:30,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:54:30,195 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:54:30,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:54:26" (3/4) ... [2022-12-14 21:54:30,198 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 21:54:30,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 21:54:30,206 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 21:54:30,207 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 21:54:30,207 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 21:54:30,207 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 21:54:30,235 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:54:30,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:54:30,236 INFO L158 Benchmark]: Toolchain (without parser) took 4139.27ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 83.4MB in the beginning and 87.7MB in the end (delta: -4.2MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-12-14 21:54:30,237 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:54:30,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.11ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 73.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 21:54:30,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.45ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 71.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:54:30,238 INFO L158 Benchmark]: Boogie Preprocessor took 14.55ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 70.6MB in the end (delta: 857.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:54:30,239 INFO L158 Benchmark]: RCFGBuilder took 219.42ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 59.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 21:54:30,239 INFO L158 Benchmark]: CodeCheck took 3687.44ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 59.5MB in the beginning and 89.8MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:54:30,239 INFO L158 Benchmark]: Witness Printer took 40.98ms. Allocated memory is still 144.7MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:54:30,242 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 272 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 299 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 637 IncrementalHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 299 mSolverCounterUnsat, 84 mSDtfsCounter, 637 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1494 GetRequests, 1361 SyntacticMatches, 47 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2674 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 909 SizeOfPredicates, 18 NumberOfNonLiveVariables, 751 ConjunctsInSsa, 173 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 235/331 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: 12]: 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: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 151.11ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 73.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.45ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 71.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.55ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 70.6MB in the end (delta: 857.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 219.42ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 59.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 3687.44ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 59.5MB in the beginning and 89.8MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.98ms. Allocated memory is still 144.7MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 21:54:30,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e25b6d2b-d85f-447e-82b5-82b8fff48715/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