./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test21-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB --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 05085beafc13f38fbda38ea415197838c6c50810d8ce271072546e893cc1f1e6 --- 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-dbf71c6-m [2022-10-17 16:52:13,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:52:13,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:52:13,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:52:13,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:52:13,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:52:13,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:52:13,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:52:13,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:52:13,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:52:13,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:52:13,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:52:13,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:52:13,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:52:13,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:52:13,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:52:13,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:52:13,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:52:13,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:52:13,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:52:13,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:52:13,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:52:13,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:52:13,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:52:13,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:52:13,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:52:13,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:52:13,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:52:13,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:52:13,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:52:13,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:52:13,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:52:13,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:52:13,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:52:13,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:52:13,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:52:13,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:52:13,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:52:13,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:52:13,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:52:13,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:52:13,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:52:13,743 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:52:13,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:52:13,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:52:13,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:52:13,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:52:13,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:52:13,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:52:13,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:52:13,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:52:13,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:52:13,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:52:13,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:52:13,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:52:13,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:52:13,750 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:52:13,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:52:13,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:52:13,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:52:13,752 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:52:13,752 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:52:13,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:52:13,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:52:13,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:52:13,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:52:13,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:52:13,755 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:52:13,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:52:13,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:52:13,756 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_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05085beafc13f38fbda38ea415197838c6c50810d8ce271072546e893cc1f1e6 [2022-10-17 16:52:14,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:52:14,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:52:14,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:52:14,140 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:52:14,141 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:52:14,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/ldv-regression/test21-1.c [2022-10-17 16:52:14,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/data/cbb672258/8d163aaba8fc4735b75f4fcfec74d58e/FLAG32e15b9d6 [2022-10-17 16:52:14,745 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:52:14,745 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/sv-benchmarks/c/ldv-regression/test21-1.c [2022-10-17 16:52:14,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/data/cbb672258/8d163aaba8fc4735b75f4fcfec74d58e/FLAG32e15b9d6 [2022-10-17 16:52:15,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/data/cbb672258/8d163aaba8fc4735b75f4fcfec74d58e [2022-10-17 16:52:15,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:52:15,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:52:15,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:52:15,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:52:15,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:52:15,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c068a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15, skipping insertion in model container [2022-10-17 16:52:15,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:52:15,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:52:15,421 WARN L230 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_08381e7b-216e-49f1-b71b-24e5d982ff15/sv-benchmarks/c/ldv-regression/test21-1.c[892,905] [2022-10-17 16:52:15,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:52:15,437 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:52:15,463 WARN L230 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_08381e7b-216e-49f1-b71b-24e5d982ff15/sv-benchmarks/c/ldv-regression/test21-1.c[892,905] [2022-10-17 16:52:15,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:52:15,491 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:52:15,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15 WrapperNode [2022-10-17 16:52:15,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:52:15,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:52:15,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:52:15,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:52:15,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,549 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-10-17 16:52:15,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:52:15,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:52:15,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:52:15,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:52:15,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:52:15,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:52:15,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:52:15,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:52:15,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:15" (1/1) ... [2022-10-17 16:52:15,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:52:15,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:52:15,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:52:15,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:52:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:52:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:52:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:52:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-10-17 16:52:15,696 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-10-17 16:52:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:52:15,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:52:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:52:15,785 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:52:15,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:52:15,976 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:52:16,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:52:16,067 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:52:16,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:52:16 BoogieIcfgContainer [2022-10-17 16:52:16,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:52:16,071 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:52:16,071 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:52:16,081 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:52:16,082 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:52:16" (1/1) ... [2022-10-17 16:52:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:52:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-10-17 16:52:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-10-17 16:52:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:52:16,158 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:16,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:52:16,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:16,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-10-17 16:52:16,913 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-10-17 16:52:16,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:52:16,913 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2022-10-17 16:52:16,943 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:52:16,977 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:52:16,984 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:52:17,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:52:17 ImpRootNode [2022-10-17 16:52:17,007 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:52:17,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:52:17,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:52:17,008 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:52:17,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:52:16" (3/4) ... [2022-10-17 16:52:17,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:52:17,025 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2022-10-17 16:52:17,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-10-17 16:52:17,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-10-17 16:52:17,032 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:52:17,032 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:52:17,081 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:52:17,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:52:17,082 INFO L158 Benchmark]: Toolchain (without parser) took 1977.17ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 65.7MB in the beginning and 111.5MB in the end (delta: -45.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:52:17,082 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 82.3MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:52:17,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.84ms. Allocated memory is still 109.1MB. Free memory was 65.4MB in the beginning and 84.0MB in the end (delta: -18.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:52:17,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.77ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 82.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:52:17,084 INFO L158 Benchmark]: Boogie Preprocessor took 54.45ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 81.4MB in the end (delta: 899.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:52:17,085 INFO L158 Benchmark]: RCFGBuilder took 463.83ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 67.2MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 16:52:17,086 INFO L158 Benchmark]: CodeCheck took 936.53ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 67.2MB in the beginning and 114.7MB in the end (delta: -47.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-10-17 16:52:17,086 INFO L158 Benchmark]: Witness Printer took 73.20ms. Allocated memory is still 138.4MB. Free memory was 113.9MB in the beginning and 111.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:52:17,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 8 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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: 44]: 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 82.3MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.84ms. Allocated memory is still 109.1MB. Free memory was 65.4MB in the beginning and 84.0MB in the end (delta: -18.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.77ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 82.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.45ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 81.4MB in the end (delta: 899.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 463.83ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 67.2MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 936.53ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 67.2MB in the beginning and 114.7MB in the end (delta: -47.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 73.20ms. Allocated memory is still 138.4MB. Free memory was 113.9MB in the beginning and 111.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:52:17,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08381e7b-216e-49f1-b71b-24e5d982ff15/bin/ukojak-92XMlrwhuB/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