./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/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_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/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_00e85597-29f3-4471-9cd6-21fd8bb1c313/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 e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 --- 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 01:51:42,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 01:51:42,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 01:51:43,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 01:51:43,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 01:51:43,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 01:51:43,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 01:51:43,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 01:51:43,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 01:51:43,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 01:51:43,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 01:51:43,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 01:51:43,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 01:51:43,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 01:51:43,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 01:51:43,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 01:51:43,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 01:51:43,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 01:51:43,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 01:51:43,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 01:51:43,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 01:51:43,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 01:51:43,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 01:51:43,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 01:51:43,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 01:51:43,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 01:51:43,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 01:51:43,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 01:51:43,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 01:51:43,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 01:51:43,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 01:51:43,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 01:51:43,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 01:51:43,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 01:51:43,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 01:51:43,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 01:51:43,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 01:51:43,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 01:51:43,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 01:51:43,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 01:51:43,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 01:51:43,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-15 01:51:43,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 01:51:43,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 01:51:43,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 01:51:43,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 01:51:43,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 01:51:43,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 01:51:43,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 01:51:43,056 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 01:51:43,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 01:51:43,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 01:51:43,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 01:51:43,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 01:51:43,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 01:51:43,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 01:51:43,057 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 01:51:43,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 01:51:43,057 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 01:51:43,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 01:51:43,057 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 01:51:43,057 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 01:51:43,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 01:51:43,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:51:43,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 01:51:43,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 01:51:43,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 01:51:43,058 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 01:51:43,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 01:51:43,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 01:51:43,058 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_00e85597-29f3-4471-9cd6-21fd8bb1c313/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 [2022-12-15 01:51:43,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 01:51:43,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 01:51:43,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 01:51:43,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 01:51:43,245 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 01:51:43,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2022-12-15 01:51:45,874 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 01:51:45,992 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 01:51:45,992 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2022-12-15 01:51:45,996 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/data/bdbc03b76/6e030e0e72f84383bb79ff1ce087f247/FLAG8f2c4c225 [2022-12-15 01:51:46,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/data/bdbc03b76/6e030e0e72f84383bb79ff1ce087f247 [2022-12-15 01:51:46,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 01:51:46,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 01:51:46,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 01:51:46,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 01:51:46,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 01:51:46,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e03db81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46, skipping insertion in model container [2022-12-15 01:51:46,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 01:51:46,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 01:51:46,143 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_00e85597-29f3-4471-9cd6-21fd8bb1c313/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2022-12-15 01:51:46,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:51:46,162 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 01:51:46,170 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_00e85597-29f3-4471-9cd6-21fd8bb1c313/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2022-12-15 01:51:46,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:51:46,185 INFO L208 MainTranslator]: Completed translation [2022-12-15 01:51:46,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46 WrapperNode [2022-12-15 01:51:46,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 01:51:46,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 01:51:46,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 01:51:46,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 01:51:46,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,210 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-12-15 01:51:46,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 01:51:46,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 01:51:46,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 01:51:46,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 01:51:46,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,227 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 01:51:46,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 01:51:46,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 01:51:46,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 01:51:46,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:51:46,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 01:51:46,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 01:51:46,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 01:51:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 01:51:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-15 01:51:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-15 01:51:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 01:51:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 01:51:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 01:51:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-15 01:51:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-15 01:51:46,359 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 01:51:46,361 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 01:51:46,472 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 01:51:46,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 01:51:46,500 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-15 01:51:46,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:51:46 BoogieIcfgContainer [2022-12-15 01:51:46,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 01:51:46,504 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 01:51:46,504 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 01:51:46,511 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 01:51:46,511 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:51:46" (1/1) ... [2022-12-15 01:51:46,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 01:51:46,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:51:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2022-12-15 01:51:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-12-15 01:51:46,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 01:51:46,571 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:51:46,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:51:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:51:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:51:46,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-15 01:51:46,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:51:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 01:51:46,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:51:46,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2022-12-15 01:51:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-12-15 01:51:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-15 01:51:46,741 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:51:46,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:51:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:51:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:51:46,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-15 01:51:46,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:51:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 01:51:46,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:51:46,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2022-12-15 01:51:46,893 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-12-15 01:51:46,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 01:51:46,894 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:51:46,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:51:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:51:46,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-15 01:51:46,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:51:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 01:51:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:51:47,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-12-15 01:51:47,102 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-12-15 01:51:47,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 01:51:47,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:51:47,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:51:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:51:47,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-15 01:51:47,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:51:47,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 01:51:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:51:48,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 42 transitions. [2022-12-15 01:51:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2022-12-15 01:51:48,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-15 01:51:48,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:51:48,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:51:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:51:48,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-15 01:51:48,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:51:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-15 01:51:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:51:48,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 31 transitions. [2022-12-15 01:51:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-12-15 01:51:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-15 01:51:48,795 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:51:48,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:51:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:51:48,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-15 01:51:48,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-15 01:51:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 01:51:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:51:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 23 states and 26 transitions. [2022-12-15 01:51:50,156 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-15 01:51:50,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 01:51:50,157 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2022-12-15 01:51:50,162 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-15 01:51:50,266 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-12-15 01:51:50,273 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 01:51:50,273 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 01:51:50,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 01:51:50 ImpRootNode [2022-12-15 01:51:50,274 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 01:51:50,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 01:51:50,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 01:51:50,274 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 01:51:50,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:51:46" (3/4) ... [2022-12-15 01:51:50,277 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 01:51:50,280 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-15 01:51:50,281 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-15 01:51:50,283 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-12-15 01:51:50,283 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-15 01:51:50,283 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-15 01:51:50,283 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 01:51:50,311 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 01:51:50,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 01:51:50,312 INFO L158 Benchmark]: Toolchain (without parser) took 4298.68ms. Allocated memory is still 144.7MB. Free memory was 88.8MB in the beginning and 59.8MB in the end (delta: 29.0MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-12-15 01:51:50,312 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:51:50,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.03ms. Allocated memory is still 144.7MB. Free memory was 88.6MB in the beginning and 78.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-15 01:51:50,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.41ms. Allocated memory is still 144.7MB. Free memory was 78.1MB in the beginning and 76.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:51:50,313 INFO L158 Benchmark]: Boogie Preprocessor took 18.97ms. Allocated memory is still 144.7MB. Free memory was 76.6MB in the beginning and 75.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:51:50,313 INFO L158 Benchmark]: RCFGBuilder took 272.24ms. Allocated memory is still 144.7MB. Free memory was 75.4MB in the beginning and 109.0MB in the end (delta: -33.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-15 01:51:50,314 INFO L158 Benchmark]: CodeCheck took 3770.18ms. Allocated memory is still 144.7MB. Free memory was 109.0MB in the beginning and 62.9MB in the end (delta: 46.1MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2022-12-15 01:51:50,314 INFO L158 Benchmark]: Witness Printer took 37.20ms. Allocated memory is still 144.7MB. Free memory was 62.9MB in the beginning and 59.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:51:50,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 383 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 280 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 183 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 514 IncrementalHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 183 mSolverCounterUnsat, 206 mSDtfsCounter, 514 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 837 GetRequests, 735 SyntacticMatches, 6 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3248 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 8 NumberOfNonLiveVariables, 394 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 14/16 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: 21]: 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: 36]: Loop Invariant Derived loop invariant: 0 <= counter - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.03ms. Allocated memory is still 144.7MB. Free memory was 88.6MB in the beginning and 78.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.41ms. Allocated memory is still 144.7MB. Free memory was 78.1MB in the beginning and 76.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.97ms. Allocated memory is still 144.7MB. Free memory was 76.6MB in the beginning and 75.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 272.24ms. Allocated memory is still 144.7MB. Free memory was 75.4MB in the beginning and 109.0MB in the end (delta: -33.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 3770.18ms. Allocated memory is still 144.7MB. Free memory was 109.0MB in the beginning and 62.9MB in the end (delta: 46.1MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 37.20ms. Allocated memory is still 144.7MB. Free memory was 62.9MB in the beginning and 59.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-15 01:51:50,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00e85597-29f3-4471-9cd6-21fd8bb1c313/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