./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-15 00:19:42,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 00:19:42,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 00:19:42,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 00:19:42,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 00:19:42,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 00:19:42,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 00:19:42,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 00:19:42,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 00:19:42,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 00:19:42,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 00:19:42,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 00:19:42,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 00:19:42,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 00:19:42,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 00:19:42,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 00:19:42,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 00:19:42,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 00:19:42,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 00:19:42,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 00:19:42,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 00:19:42,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 00:19:42,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 00:19:42,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 00:19:42,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 00:19:42,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 00:19:42,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 00:19:42,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 00:19:42,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 00:19:42,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 00:19:42,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 00:19:42,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 00:19:42,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 00:19:42,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 00:19:42,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 00:19:42,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 00:19:42,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 00:19:42,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 00:19:42,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 00:19:42,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 00:19:42,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 00:19:42,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 00:19:42,786 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 00:19:42,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 00:19:42,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 00:19:42,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 00:19:42,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 00:19:42,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 00:19:42,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 00:19:42,788 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 00:19:42,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 00:19:42,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 00:19:42,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 00:19:42,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 00:19:42,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 00:19:42,789 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 00:19:42,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 00:19:42,789 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 00:19:42,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 00:19:42,790 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 00:19:42,790 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 00:19:42,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 00:19:42,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:19:42,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 00:19:42,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 00:19:42,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 00:19:42,791 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 00:19:42,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 00:19:42,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 00:19:42,791 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_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 [2022-12-15 00:19:42,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 00:19:42,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 00:19:42,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 00:19:42,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 00:19:42,971 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 00:19:42,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-12-15 00:19:45,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 00:19:45,758 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 00:19:45,758 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2022-12-15 00:19:45,762 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/data/9932eb8af/225330b80d9e4f338fdf5f157d796dc2/FLAGf17fa79ec [2022-12-15 00:19:45,772 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/data/9932eb8af/225330b80d9e4f338fdf5f157d796dc2 [2022-12-15 00:19:45,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 00:19:45,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 00:19:45,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 00:19:45,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 00:19:45,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 00:19:45,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fa21a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45, skipping insertion in model container [2022-12-15 00:19:45,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 00:19:45,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 00:19:45,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:19:45,910 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 00:19:45,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:19:45,931 INFO L208 MainTranslator]: Completed translation [2022-12-15 00:19:45,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45 WrapperNode [2022-12-15 00:19:45,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 00:19:45,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 00:19:45,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 00:19:45,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 00:19:45,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,953 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-12-15 00:19:45,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 00:19:45,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 00:19:45,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 00:19:45,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 00:19:45,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,965 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 00:19:45,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 00:19:45,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 00:19:45,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 00:19:45,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:19:45" (1/1) ... [2022-12-15 00:19:45,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:19:45,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 00:19:45,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 00:19:45,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 00:19:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure p [2022-12-15 00:19:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2022-12-15 00:19:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 00:19:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 00:19:46,079 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 00:19:46,080 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 00:19:46,165 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 00:19:46,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 00:19:46,177 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-15 00:19:46,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:19:46 BoogieIcfgContainer [2022-12-15 00:19:46,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 00:19:46,181 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 00:19:46,181 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 00:19:46,190 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 00:19:46,191 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:19:46" (1/1) ... [2022-12-15 00:19:46,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 00:19:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2022-12-15 00:19:46,258 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-12-15 00:19:46,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:19:46,259 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:46,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:46,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:46,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:46,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2022-12-15 00:19:46,427 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-12-15 00:19:46,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 00:19:46,427 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:46,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:46,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 32 transitions. [2022-12-15 00:19:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-12-15 00:19:46,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 00:19:46,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:46,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:46,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:46,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:46,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 31 transitions. [2022-12-15 00:19:46,662 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-12-15 00:19:46,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 00:19:46,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:46,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:47,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:47,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 39 transitions. [2022-12-15 00:19:47,025 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-12-15 00:19:47,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 00:19:47,026 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:47,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:47,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 43 transitions. [2022-12-15 00:19:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2022-12-15 00:19:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 00:19:47,151 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:47,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:47,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:47,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 34 states and 45 transitions. [2022-12-15 00:19:47,294 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2022-12-15 00:19:47,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 00:19:47,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:47,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 40 states and 57 transitions. [2022-12-15 00:19:47,873 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2022-12-15 00:19:47,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 00:19:47,874 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:47,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:47,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 60 transitions. [2022-12-15 00:19:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2022-12-15 00:19:47,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-15 00:19:47,960 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:47,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 00:19:48,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:48,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 44 states and 63 transitions. [2022-12-15 00:19:48,131 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2022-12-15 00:19:48,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-15 00:19:48,131 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:19:48,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:19:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:19:48,243 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:19:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:19:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 19 states and 23 transitions. [2022-12-15 00:19:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-12-15 00:19:48,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 00:19:48,558 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2022-12-15 00:19:48,566 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-15 00:19:48,602 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 00:19:48,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 12:19:48 ImpRootNode [2022-12-15 00:19:48,607 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 00:19:48,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 00:19:48,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 00:19:48,607 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 00:19:48,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:19:46" (3/4) ... [2022-12-15 00:19:48,611 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 00:19:48,616 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure p [2022-12-15 00:19:48,620 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-15 00:19:48,620 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-15 00:19:48,620 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-15 00:19:48,649 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 00:19:48,649 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 00:19:48,650 INFO L158 Benchmark]: Toolchain (without parser) took 2874.48ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 89.3MB in the beginning and 103.0MB in the end (delta: -13.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-12-15 00:19:48,650 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:19:48,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.69ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 79.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-15 00:19:48,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.31ms. Allocated memory is still 119.5MB. Free memory was 79.7MB in the beginning and 78.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:19:48,651 INFO L158 Benchmark]: Boogie Preprocessor took 12.41ms. Allocated memory is still 119.5MB. Free memory was 78.4MB in the beginning and 77.6MB in the end (delta: 777.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:19:48,651 INFO L158 Benchmark]: RCFGBuilder took 212.91ms. Allocated memory is still 119.5MB. Free memory was 77.6MB in the beginning and 67.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-15 00:19:48,652 INFO L158 Benchmark]: CodeCheck took 2426.04ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 67.2MB in the beginning and 106.2MB in the end (delta: -39.0MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-12-15 00:19:48,652 INFO L158 Benchmark]: Witness Printer took 42.23ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 103.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-15 00:19:48,655 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, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 236 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 216 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1010 IncrementalHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 216 mSolverCounterUnsat, 206 mSDtfsCounter, 1010 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1009 GetRequests, 899 SyntacticMatches, 22 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2356 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 11/31 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 155.69ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 79.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.31ms. Allocated memory is still 119.5MB. Free memory was 79.7MB in the beginning and 78.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.41ms. Allocated memory is still 119.5MB. Free memory was 78.4MB in the beginning and 77.6MB in the end (delta: 777.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 212.91ms. Allocated memory is still 119.5MB. Free memory was 77.6MB in the beginning and 67.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2426.04ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 67.2MB in the beginning and 106.2MB in the end (delta: -39.0MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 42.23ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 103.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-15 00:19:48,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7214326-6ebd-4cc8-9300-bc2cf7dde901/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE