./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.p+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.p+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ --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 bc897f414e0a05ffd4da5dfbe75d0cb0f250cea1356c39694412a6f55b10a7b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:14:53,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:14:53,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:14:53,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:14:53,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:14:53,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:14:53,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:14:53,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:14:53,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:14:53,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:14:53,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:14:53,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:14:53,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:14:53,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:14:53,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:14:53,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:14:53,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:14:53,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:14:53,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:14:53,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:14:53,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:14:53,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:14:53,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:14:53,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:14:53,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:14:53,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:14:53,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:14:53,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:14:53,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:14:53,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:14:53,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:14:53,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:14:53,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:14:53,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:14:53,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:14:53,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:14:53,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:14:53,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:14:53,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:14:53,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:14:53,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:14:53,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:14:53,735 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:14:53,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:14:53,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:14:53,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:14:53,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:14:53,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:14:53,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:14:53,743 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:14:53,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:14:53,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:14:53,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:14:53,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:14:53,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:14:53,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:14:53,752 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:14:53,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:14:53,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:14:53,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:14:53,753 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:14:53,753 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:14:53,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:14:53,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:14:53,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:14:53,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:14:53,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:14:53,755 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:14:53,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:14:53,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:14:53,755 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_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc897f414e0a05ffd4da5dfbe75d0cb0f250cea1356c39694412a6f55b10a7b1 [2021-11-23 01:14:54,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:14:54,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:14:54,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:14:54,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:14:54,070 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:14:54,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-invgen/id_build.i.p+nlh-reducer.c [2021-11-23 01:14:54,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/data/64d6a0a63/e562cdc96d2142128cbb9799d1a4d531/FLAG9df8a4498 [2021-11-23 01:14:54,693 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:14:54,699 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/sv-benchmarks/c/loop-invgen/id_build.i.p+nlh-reducer.c [2021-11-23 01:14:54,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/data/64d6a0a63/e562cdc96d2142128cbb9799d1a4d531/FLAG9df8a4498 [2021-11-23 01:14:54,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/data/64d6a0a63/e562cdc96d2142128cbb9799d1a4d531 [2021-11-23 01:14:54,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:14:54,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:14:54,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:14:54,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:14:54,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:14:54,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:14:54" (1/1) ... [2021-11-23 01:14:55,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7738631c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:55, skipping insertion in model container [2021-11-23 01:14:55,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:14:54" (1/1) ... [2021-11-23 01:14:55,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:14:55,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:14:55,710 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_8d752b70-3591-4688-aa8d-875e1e1fb0a2/sv-benchmarks/c/loop-invgen/id_build.i.p+nlh-reducer.c[32736,32749] [2021-11-23 01:14:55,726 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_8d752b70-3591-4688-aa8d-875e1e1fb0a2/sv-benchmarks/c/loop-invgen/id_build.i.p+nlh-reducer.c[33038,33051] [2021-11-23 01:14:55,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:14:55,802 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:14:56,019 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_8d752b70-3591-4688-aa8d-875e1e1fb0a2/sv-benchmarks/c/loop-invgen/id_build.i.p+nlh-reducer.c[32736,32749] [2021-11-23 01:14:56,023 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_8d752b70-3591-4688-aa8d-875e1e1fb0a2/sv-benchmarks/c/loop-invgen/id_build.i.p+nlh-reducer.c[33038,33051] [2021-11-23 01:14:56,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:14:56,091 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:14:56,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56 WrapperNode [2021-11-23 01:14:56,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:14:56,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:14:56,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:14:56,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:14:56,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,227 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1404 [2021-11-23 01:14:56,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:14:56,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:14:56,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:14:56,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:14:56,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:14:56,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:14:56,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:14:56,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:14:56,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:56" (1/1) ... [2021-11-23 01:14:56,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:14:56,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:14:56,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:14:56,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:14:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:14:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:14:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:14:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:14:56,587 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:14:56,604 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:14:57,853 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:14:57,878 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:14:57,878 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:14:57,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:14:57 BoogieIcfgContainer [2021-11-23 01:14:57,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:14:57,883 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:14:57,883 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:14:57,894 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:14:57,894 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:14:57" (1/1) ... [2021-11-23 01:14:57,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:14:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:57,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 249 states and 484 transitions. [2021-11-23 01:14:57,974 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 484 transitions. [2021-11-23 01:14:57,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-23 01:14:57,985 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:57,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:58,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:14:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 251 states and 485 transitions. [2021-11-23 01:14:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 485 transitions. [2021-11-23 01:14:58,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-23 01:14:58,940 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:58,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:14:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 254 states and 488 transitions. [2021-11-23 01:14:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 488 transitions. [2021-11-23 01:14:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 01:14:59,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:59,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:00,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 256 states and 490 transitions. [2021-11-23 01:15:00,080 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 490 transitions. [2021-11-23 01:15:00,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 01:15:00,081 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:00,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 259 states and 495 transitions. [2021-11-23 01:15:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 495 transitions. [2021-11-23 01:15:00,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-23 01:15:00,623 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:00,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:15:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:00,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 258 states and 493 transitions. [2021-11-23 01:15:00,869 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 493 transitions. [2021-11-23 01:15:00,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-23 01:15:00,870 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:00,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:02,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:02,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 368 states and 742 transitions. [2021-11-23 01:15:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 742 transitions. [2021-11-23 01:15:02,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-23 01:15:02,821 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:02,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:15:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 361 states and 733 transitions. [2021-11-23 01:15:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 733 transitions. [2021-11-23 01:15:03,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-23 01:15:03,136 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:03,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 388 states and 794 transitions. [2021-11-23 01:15:11,150 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 794 transitions. [2021-11-23 01:15:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-23 01:15:11,152 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:11,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:11,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:15:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 335 states and 678 transitions. [2021-11-23 01:15:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 678 transitions. [2021-11-23 01:15:14,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-23 01:15:14,629 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:14,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:15:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 282 states and 563 transitions. [2021-11-23 01:15:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 563 transitions. [2021-11-23 01:15:17,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-23 01:15:17,177 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:17,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:17,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:15:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 204 states and 389 transitions. [2021-11-23 01:15:20,088 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 389 transitions. [2021-11-23 01:15:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-23 01:15:20,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:20,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:15:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 153 states and 279 transitions. [2021-11-23 01:15:23,289 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 279 transitions. [2021-11-23 01:15:23,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-23 01:15:23,290 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:23,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:15:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 155 states and 281 transitions. [2021-11-23 01:15:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 281 transitions. [2021-11-23 01:15:27,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-23 01:15:27,593 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:27,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:30,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:30,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 161 states and 292 transitions. [2021-11-23 01:15:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 292 transitions. [2021-11-23 01:15:30,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-23 01:15:30,125 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:30,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:33,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 170 states and 304 transitions. [2021-11-23 01:15:33,755 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 304 transitions. [2021-11-23 01:15:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-23 01:15:33,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:33,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 179 states and 315 transitions. [2021-11-23 01:15:37,542 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 315 transitions. [2021-11-23 01:15:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-23 01:15:37,543 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:37,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:41,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 188 states and 326 transitions. [2021-11-23 01:15:41,699 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 326 transitions. [2021-11-23 01:15:41,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-23 01:15:41,700 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:41,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:46,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 197 states and 337 transitions. [2021-11-23 01:15:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 337 transitions. [2021-11-23 01:15:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-23 01:15:46,171 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:46,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:46,738 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 40 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:51,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 206 states and 348 transitions. [2021-11-23 01:15:51,115 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 348 transitions. [2021-11-23 01:15:51,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-23 01:15:51,116 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:51,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:51,838 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 46 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 215 states and 357 transitions. [2021-11-23 01:15:56,047 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 357 transitions. [2021-11-23 01:15:56,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-23 01:15:56,048 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:56,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:56,363 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 44 proven. 8 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-23 01:16:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 240 states and 391 transitions. [2021-11-23 01:16:10,260 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 391 transitions. [2021-11-23 01:16:10,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-23 01:16:10,261 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:10,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 44 proven. 8 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-23 01:16:15,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:15,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 192 states and 321 transitions. [2021-11-23 01:16:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 321 transitions. [2021-11-23 01:16:15,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:16:15,336 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2021-11-23 01:16:15,345 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-11-23 01:16:15,991 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-23 01:16:15,999 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-23 01:16:15,999 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2021-11-23 01:16:16,000 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:16:16,001 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2021-11-23 01:16:16,006 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2021-11-23 01:16:16,007 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-23 01:16:16,007 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-23 01:16:16,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:16:16 ImpRootNode [2021-11-23 01:16:16,008 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:16:16,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:16:16,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:16:16,009 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:16:16,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:14:57" (3/4) ... [2021-11-23 01:16:16,016 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:16:16,062 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 01:16:16,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 01:16:16,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:16:16,070 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:16:16,316 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:16:16,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:16:16,317 INFO L158 Benchmark]: Toolchain (without parser) took 81337.72ms. Allocated memory was 81.8MB in the beginning and 708.8MB in the end (delta: 627.0MB). Free memory was 46.4MB in the beginning and 505.5MB in the end (delta: -459.1MB). Peak memory consumption was 169.3MB. Max. memory is 16.1GB. [2021-11-23 01:16:16,317 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 81.8MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:16:16,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1097.17ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 46.0MB in the beginning and 54.5MB in the end (delta: -8.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:16:16,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.13ms. Allocated memory is still 102.8MB. Free memory was 54.5MB in the beginning and 48.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 01:16:16,319 INFO L158 Benchmark]: Boogie Preprocessor took 64.07ms. Allocated memory is still 102.8MB. Free memory was 48.2MB in the beginning and 44.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:16:16,319 INFO L158 Benchmark]: RCFGBuilder took 1589.15ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 44.6MB in the beginning and 97.2MB in the end (delta: -52.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-23 01:16:16,320 INFO L158 Benchmark]: CodeCheck took 78125.67ms. Allocated memory was 134.2MB in the beginning and 708.8MB in the end (delta: 574.6MB). Free memory was 97.2MB in the beginning and 529.3MB in the end (delta: -432.2MB). Peak memory consumption was 142.3MB. Max. memory is 16.1GB. [2021-11-23 01:16:16,320 INFO L158 Benchmark]: Witness Printer took 307.09ms. Allocated memory is still 708.8MB. Free memory was 529.3MB in the beginning and 505.5MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 01:16:16,323 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 1 procedures, 249 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 77.4s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23067 SdHoareTripleChecker+Valid, 29.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14521 mSDsluCounter, 25894 SdHoareTripleChecker+Invalid, 23.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6979 mSDsCounter, 3082 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28872 IncrementalHoareTripleChecker+Invalid, 31954 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3082 mSolverCounterUnsat, 18915 mSDtfsCounter, 28872 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28226 GetRequests, 26972 SyntacticMatches, 512 SemanticMatches, 742 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266972 ImplicationChecksByTransitivity, 71.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 3365 NumberOfCodeBlocks, 3365 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3343 ConstructedInterpolants, 0 QuantifiedInterpolants, 6337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 597/924 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: 1763]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1780]: 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 2 specifications checked. All of them hold - InvariantResult [Line: 664]: Loop Invariant Derived loop invariant: 1 <= main__i - InvariantResult [Line: 1542]: Loop Invariant Derived loop invariant: 3 <= main__i - InvariantResult [Line: 1767]: Loop Invariant Derived loop invariant: (5 <= main__i && main__i + 1 <= main__nlen) || ((8 <= main__j && 4 <= main__i) && main__i + 1 <= main__nlen) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1742]: Loop Invariant Derived loop invariant: (5 <= main__i && main__i + 1 <= main__nlen) || ((4 <= main__i && 7 <= main__j) && main__i + 1 <= main__nlen) - InvariantResult [Line: 1754]: Loop Invariant Derived loop invariant: 5 <= main__i && main__i + 1 <= main__nlen - InvariantResult [Line: 225]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 1103]: Loop Invariant Derived loop invariant: 2 <= main__i * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 81.8MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1097.17ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 46.0MB in the beginning and 54.5MB in the end (delta: -8.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.13ms. Allocated memory is still 102.8MB. Free memory was 54.5MB in the beginning and 48.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.07ms. Allocated memory is still 102.8MB. Free memory was 48.2MB in the beginning and 44.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1589.15ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 44.6MB in the beginning and 97.2MB in the end (delta: -52.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * CodeCheck took 78125.67ms. Allocated memory was 134.2MB in the beginning and 708.8MB in the end (delta: 574.6MB). Free memory was 97.2MB in the beginning and 529.3MB in the end (delta: -432.2MB). Peak memory consumption was 142.3MB. Max. memory is 16.1GB. * Witness Printer took 307.09ms. Allocated memory is still 708.8MB. Free memory was 529.3MB in the beginning and 505.5MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:16:16,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d752b70-3591-4688-aa8d-875e1e1fb0a2/bin/ukojak-LBtLqBUTdQ/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