./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24dd9e35f595841fde27d918f97d639ac1034ccbe1a53bd61bcaaba27340f520 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:22:36,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:22:37,069 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-02 21:22:37,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:22:37,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:22:37,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:22:37,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:22:37,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:22:37,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:22:37,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:22:37,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:22:37,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:22:37,109 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:22:37,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:22:37,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:22:37,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:22:37,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:22:37,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:22:37,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:22:37,112 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 21:22:37,113 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:22:37,113 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:22:37,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:22:37,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:22:37,114 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:22:37,115 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:22:37,115 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:22:37,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:22:37,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:22:37,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:22:37,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:22:37,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:22:37,117 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:22:37,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:22:37,118 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:22:37,118 INFO L153 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_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24dd9e35f595841fde27d918f97d639ac1034ccbe1a53bd61bcaaba27340f520 [2023-12-02 21:22:37,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:22:37,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:22:37,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:22:37,372 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:22:37,373 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:22:37,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i [2023-12-02 21:22:40,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:22:40,300 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:22:40,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i [2023-12-02 21:22:40,307 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/data/7198cb67c/987cc3f56c60491482e51022cfef339c/FLAG8cf568c59 [2023-12-02 21:22:40,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/data/7198cb67c/987cc3f56c60491482e51022cfef339c [2023-12-02 21:22:40,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:22:40,322 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:22:40,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:22:40,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:22:40,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:22:40,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:22:40" (1/1) ... [2023-12-02 21:22:40,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebeb9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:40, skipping insertion in model container [2023-12-02 21:22:40,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:22:40" (1/1) ... [2023-12-02 21:22:40,355 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:22:40,520 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1427) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:222) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:386) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2441) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 21:22:40,526 INFO L158 Benchmark]: Toolchain (without parser) took 202.24ms. Allocated memory is still 157.3MB. Free memory was 123.3MB in the beginning and 114.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 21:22:40,527 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:22:40,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.43ms. Allocated memory is still 157.3MB. Free memory was 123.3MB in the beginning and 114.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 21:22:40,530 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.43ms. Allocated memory is still 157.3MB. Free memory was 123.3MB in the beginning and 114.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24dd9e35f595841fde27d918f97d639ac1034ccbe1a53bd61bcaaba27340f520 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:22:42,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:22:42,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-12-02 21:22:42,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:22:42,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:22:42,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:22:42,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:22:42,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:22:42,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:22:42,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:22:42,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:22:42,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:22:42,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:22:42,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:22:42,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:22:42,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:22:42,346 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:22:42,346 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:22:42,347 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 21:22:42,347 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:22:42,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:22:42,350 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:22:42,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:22:42,351 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:22:42,351 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:22:42,352 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:22:42,352 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:22:42,353 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:42,353 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:22:42,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:22:42,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:22:42,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:22:42,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:22:42,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:22:42,355 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:22:42,355 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:42,355 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:22:42,356 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:22:42,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:22:42,356 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24dd9e35f595841fde27d918f97d639ac1034ccbe1a53bd61bcaaba27340f520 [2023-12-02 21:22:42,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:22:42,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:22:42,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:22:42,661 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:22:42,662 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:22:42,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i [2023-12-02 21:22:45,459 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:22:45,679 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:22:45,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i [2023-12-02 21:22:45,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/data/7b89665bd/85a9edc12a284ee2b544c342e77aa6dd/FLAG4ed26177c [2023-12-02 21:22:45,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/data/7b89665bd/85a9edc12a284ee2b544c342e77aa6dd [2023-12-02 21:22:45,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:22:45,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:22:45,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:22:45,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:22:45,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:22:45,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:45,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388ab016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45, skipping insertion in model container [2023-12-02 21:22:45,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:45,739 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:22:45,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:22:45,930 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:22:45,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:22:45,979 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:22:45,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45 WrapperNode [2023-12-02 21:22:45,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:22:45,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:22:45,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:22:45,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:22:45,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:45,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,022 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2023-12-02 21:22:46,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:22:46,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:22:46,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:22:46,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:22:46,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,038 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:22:46,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:22:46,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:22:46,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:22:46,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:22:45" (1/1) ... [2023-12-02 21:22:46,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:22:46,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:22:46,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:22:46,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:22:46,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:22:46,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:22:46,141 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 21:22:46,141 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 21:22:46,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:22:46,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:22:46,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 21:22:46,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 21:22:46,210 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:22:46,212 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:22:57,201 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:22:57,295 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:22:57,295 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:22:57,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:22:57 BoogieIcfgContainer [2023-12-02 21:22:57,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:22:57,298 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:22:57,298 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:22:57,308 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:22:57,308 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:22:57" (1/1) ... [2023-12-02 21:22:57,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:22:57,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-02 21:22:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-02 21:22:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:22:57,376 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:57,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:57,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:57,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:57,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:22:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:57,490 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:59,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:22:59,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:59,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:22:59,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:22:59,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-12-02 21:22:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-02 21:22:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 21:22:59,639 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:59,639 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:59,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:59,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:59,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:23:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:03,730 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:05,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:23:05,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:23:06,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:23:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:06,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-12-02 21:23:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-12-02 21:23:06,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 21:23:06,717 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:06,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:06,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:06,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:06,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:23:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:11,286 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:13,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:23:13,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 21:23:14,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 21:23:18,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2023-12-02 21:23:18,132 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2023-12-02 21:23:18,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 21:23:18,134 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:18,135 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:18,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:18,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:18,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 21:23:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:23,252 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:25,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:23:25,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 21:23:27,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-02 21:23:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2023-12-02 21:23:35,263 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2023-12-02 21:23:35,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:23:35,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:35,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:35,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:35,268 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:35,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 21:23:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:40,416 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:42,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:23:42,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:44,594 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 83 proven. 49 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-02 21:23:44,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 21:23:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:46,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2023-12-02 21:23:46,608 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2023-12-02 21:23:46,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 21:23:46,609 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-12-02 21:23:46,617 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-12-02 21:23:48,451 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:23:48,456 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2023-12-02 21:23:48,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:23:48 ImpRootNode [2023-12-02 21:23:48,459 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:23:48,460 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:23:48,460 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:23:48,460 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:23:48,461 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:22:57" (3/4) ... [2023-12-02 21:23:48,463 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 21:23:48,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 21:23:48,467 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 21:23:48,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-12-02 21:23:48,472 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 21:23:48,472 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 21:23:48,473 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 21:23:48,473 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 21:23:48,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 21:23:48,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 21:23:48,587 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:23:48,588 INFO L158 Benchmark]: Toolchain (without parser) took 62881.36ms. Allocated memory is still 111.1MB. Free memory was 88.1MB in the beginning and 71.6MB in the end (delta: 16.5MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2023-12-02 21:23:48,588 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 75.5MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:23:48,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.59ms. Allocated memory is still 111.1MB. Free memory was 87.8MB in the beginning and 75.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 21:23:48,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.78ms. Allocated memory is still 111.1MB. Free memory was 75.2MB in the beginning and 73.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:23:48,590 INFO L158 Benchmark]: Boogie Preprocessor took 37.26ms. Allocated memory is still 111.1MB. Free memory was 73.5MB in the beginning and 71.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:23:48,590 INFO L158 Benchmark]: RCFGBuilder took 11235.71ms. Allocated memory is still 111.1MB. Free memory was 71.7MB in the beginning and 75.7MB in the end (delta: -4.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 21:23:48,590 INFO L158 Benchmark]: CodeCheck took 51161.78ms. Allocated memory is still 111.1MB. Free memory was 75.7MB in the beginning and 77.0MB in the end (delta: -1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:23:48,591 INFO L158 Benchmark]: Witness Printer took 127.49ms. Allocated memory is still 111.1MB. Free memory was 77.0MB in the beginning and 71.6MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 21:23:48,593 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 49.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 263 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 15.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 362 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 163 mSDtfsCounter, 362 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1143 GetRequests, 1117 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 8.6s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 403 SizeOfPredicates, 14 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 165/264 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: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((2 == counter) || (counter == 1)) || (counter == 0)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 75.5MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.59ms. Allocated memory is still 111.1MB. Free memory was 87.8MB in the beginning and 75.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.78ms. Allocated memory is still 111.1MB. Free memory was 75.2MB in the beginning and 73.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.26ms. Allocated memory is still 111.1MB. Free memory was 73.5MB in the beginning and 71.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11235.71ms. Allocated memory is still 111.1MB. Free memory was 71.7MB in the beginning and 75.7MB in the end (delta: -4.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 51161.78ms. Allocated memory is still 111.1MB. Free memory was 75.7MB in the beginning and 77.0MB in the end (delta: -1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 127.49ms. Allocated memory is still 111.1MB. Free memory was 77.0MB in the beginning and 71.6MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 21:23:48,805 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 21:23:48,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb59ed-2b79-4d86-9401-f2ef4814f559/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE