./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- 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-38b53e6 [2022-11-25 17:20:31,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:20:31,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:20:31,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:20:31,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:20:31,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:20:31,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:20:31,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:20:31,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:20:31,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:20:31,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:20:31,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:20:31,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:20:31,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:20:31,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:20:31,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:20:31,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:20:31,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:20:31,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:20:31,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:20:31,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:20:31,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:20:31,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:20:31,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:20:31,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:20:31,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:20:31,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:20:31,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:20:31,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:20:31,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:20:31,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:20:31,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:20:31,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:20:31,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:20:31,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:20:31,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:20:31,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:20:31,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:20:31,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:20:31,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:20:31,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:20:31,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:20:31,953 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:20:31,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:20:31,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:20:31,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:20:31,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:20:31,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:20:31,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:20:31,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:20:31,958 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:20:31,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:20:31,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:20:31,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:20:31,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:20:31,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:20:31,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:20:31,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:20:31,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:20:31,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:20:31,963 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:20:31,963 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:20:31,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:20:31,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:20:31,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:20:31,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:20:31,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:20:31,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:20:31,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:31,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:20:31,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:20:31,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:20:31,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:20:31,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:20:31,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:20:31,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:20:31,969 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:20:31,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:20:31,970 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2022-11-25 17:20:32,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:20:32,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:20:32,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:20:32,421 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:20:32,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:20:32,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-25 17:20:36,036 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:20:36,462 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:20:36,463 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-25 17:20:36,492 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/data/a8d6a594f/38f27d2ecad44c31a6c946ad2dddaf3b/FLAGbd62d968d [2022-11-25 17:20:36,522 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/data/a8d6a594f/38f27d2ecad44c31a6c946ad2dddaf3b [2022-11-25 17:20:36,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:20:36,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:20:36,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:36,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:20:36,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:20:36,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:36" (1/1) ... [2022-11-25 17:20:36,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca74355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:36, skipping insertion in model container [2022-11-25 17:20:36,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:36" (1/1) ... [2022-11-25 17:20:36,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:20:36,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:20:37,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:37,619 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:20:37,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:37,841 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:20:37,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37 WrapperNode [2022-11-25 17:20:37,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:37,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:37,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:20:37,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:20:37,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:37,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:37,929 INFO L138 Inliner]: procedures = 370, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 156 [2022-11-25 17:20:37,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:37,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:20:37,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:20:37,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:20:37,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:37,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:37,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:37,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:38,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:38,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:38,025 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:38,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:38,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:20:38,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:20:38,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:20:38,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:20:38,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (1/1) ... [2022-11-25 17:20:38,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:38,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:38,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:20:38,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:20:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:20:38,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:20:38,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:20:38,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:20:38,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:20:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:20:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:20:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:20:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:20:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:20:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:20:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:20:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:20:38,169 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:20:38,465 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:20:38,468 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:20:38,974 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:20:39,001 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:20:39,002 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:20:39,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:39 BoogieIcfgContainer [2022-11-25 17:20:39,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:20:39,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:20:39,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:20:39,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:20:39,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:20:36" (1/3) ... [2022-11-25 17:20:39,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b83cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:39, skipping insertion in model container [2022-11-25 17:20:39,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:37" (2/3) ... [2022-11-25 17:20:39,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b83cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:39, skipping insertion in model container [2022-11-25 17:20:39,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:39" (3/3) ... [2022-11-25 17:20:39,030 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2022-11-25 17:20:39,040 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:20:39,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:20:39,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:20:39,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:20:39,240 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:20:39,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 201 transitions, 407 flow [2022-11-25 17:20:39,428 INFO L130 PetriNetUnfolder]: 5/200 cut-off events. [2022-11-25 17:20:39,431 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:20:39,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 200 events. 5/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 151 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2022-11-25 17:20:39,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 201 transitions, 407 flow [2022-11-25 17:20:39,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 66 transitions, 132 flow [2022-11-25 17:20:39,449 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:20:39,478 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 66 transitions, 132 flow [2022-11-25 17:20:39,481 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 66 transitions, 132 flow [2022-11-25 17:20:39,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 66 transitions, 132 flow [2022-11-25 17:20:39,507 INFO L130 PetriNetUnfolder]: 1/66 cut-off events. [2022-11-25 17:20:39,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:20:39,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-25 17:20:39,509 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2022-11-25 17:20:56,599 WARN L233 SmtUtils]: Spent 7.71s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:21:02,296 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 194 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:21:07,885 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:21:21,293 INFO L134 LiptonReduction]: Checked pairs total: 0 [2022-11-25 17:21:21,293 INFO L136 LiptonReduction]: Total number of compositions: 73 [2022-11-25 17:21:21,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:21:21,336 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a368b7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:21:21,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 17:21:21,341 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 17:21:21,342 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:21:21,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:21:21,343 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:21:21,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-25 17:21:21,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:21:21,350 INFO L85 PathProgramCache]: Analyzing trace with hash 18518, now seen corresponding path program 1 times [2022-11-25 17:21:21,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:21:21,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120975219] [2022-11-25 17:21:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:21:21,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:21:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:21,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:21:21,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:21:21,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120975219] [2022-11-25 17:21:21,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120975219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:21:21,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:21:21,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:21:21,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139002899] [2022-11-25 17:21:21,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:21:21,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:21:21,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:21:22,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:21:22,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:21:22,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 274 [2022-11-25 17:21:22,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4 places, 4 transitions, 8 flow. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:21:22,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 274 [2022-11-25 17:21:22,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:21:22,174 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2022-11-25 17:21:22,175 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:21:22,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8 conditions, 3 events. 1/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-11-25 17:21:22,176 INFO L137 encePairwiseOnDemand]: 272/274 looper letters, 2 selfloop transitions, 1 changer transitions 0/3 dead transitions. [2022-11-25 17:21:22,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 5 places, 3 transitions, 12 flow [2022-11-25 17:21:22,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:21:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:21:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2022-11-25 17:21:22,210 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7055961070559611 [2022-11-25 17:21:22,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 580 transitions. [2022-11-25 17:21:22,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 580 transitions. [2022-11-25 17:21:22,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:21:22,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 580 transitions. [2022-11-25 17:21:22,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,247 INFO L175 Difference]: Start difference. First operand has 4 places, 4 transitions, 8 flow. Second operand 3 states and 580 transitions. [2022-11-25 17:21:22,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 5 places, 3 transitions, 12 flow [2022-11-25 17:21:22,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 5 places, 3 transitions, 12 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:21:22,252 INFO L231 Difference]: Finished difference. Result has 5 places, 3 transitions, 8 flow [2022-11-25 17:21:22,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=6, PETRI_DIFFERENCE_MINUEND_PLACES=3, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=8, PETRI_PLACES=5, PETRI_TRANSITIONS=3} [2022-11-25 17:21:22,260 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 1 predicate places. [2022-11-25 17:21:22,261 INFO L495 AbstractCegarLoop]: Abstraction has has 5 places, 3 transitions, 8 flow [2022-11-25 17:21:22,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,262 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:21:22,262 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:21:22,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:21:22,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-25 17:21:22,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:21:22,279 INFO L85 PathProgramCache]: Analyzing trace with hash 18519, now seen corresponding path program 1 times [2022-11-25 17:21:22,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:21:22,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36013570] [2022-11-25 17:21:22,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:21:22,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:21:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:22,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:21:22,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:21:22,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36013570] [2022-11-25 17:21:22,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36013570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:21:22,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:21:22,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:21:22,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318274366] [2022-11-25 17:21:22,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:21:22,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:21:22,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:21:22,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:21:22,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:21:22,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 274 [2022-11-25 17:21:22,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 5 places, 3 transitions, 8 flow. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:21:22,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 274 [2022-11-25 17:21:22,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:21:22,604 INFO L130 PetriNetUnfolder]: 1/4 cut-off events. [2022-11-25 17:21:22,604 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:21:22,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 4 events. 1/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/3 useless extension candidates. Maximal degree in co-relation 6. Up to 4 conditions per place. [2022-11-25 17:21:22,605 INFO L137 encePairwiseOnDemand]: 271/274 looper letters, 2 selfloop transitions, 2 changer transitions 0/4 dead transitions. [2022-11-25 17:21:22,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 7 places, 4 transitions, 18 flow [2022-11-25 17:21:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:21:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:21:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2022-11-25 17:21:22,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7068126520681265 [2022-11-25 17:21:22,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2022-11-25 17:21:22,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2022-11-25 17:21:22,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:21:22,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2022-11-25 17:21:22,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,619 INFO L175 Difference]: Start difference. First operand has 5 places, 3 transitions, 8 flow. Second operand 3 states and 581 transitions. [2022-11-25 17:21:22,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 7 places, 4 transitions, 18 flow [2022-11-25 17:21:22,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 6 places, 4 transitions, 17 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:21:22,623 INFO L231 Difference]: Finished difference. Result has 7 places, 4 transitions, 19 flow [2022-11-25 17:21:22,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=7, PETRI_DIFFERENCE_MINUEND_PLACES=4, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=19, PETRI_PLACES=7, PETRI_TRANSITIONS=4} [2022-11-25 17:21:22,624 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 3 predicate places. [2022-11-25 17:21:22,624 INFO L495 AbstractCegarLoop]: Abstraction has has 7 places, 4 transitions, 19 flow [2022-11-25 17:21:22,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:21:22,627 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:21:22,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:21:22,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-25 17:21:22,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:21:22,630 INFO L85 PathProgramCache]: Analyzing trace with hash 574907, now seen corresponding path program 1 times [2022-11-25 17:21:22,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:21:22,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458218747] [2022-11-25 17:21:22,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:21:22,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:21:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:22,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:21:22,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:21:22,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458218747] [2022-11-25 17:21:22,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458218747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:21:22,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:21:22,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:21:22,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477209215] [2022-11-25 17:21:22,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:21:22,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:21:22,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:21:22,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:21:22,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:21:22,835 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 274 [2022-11-25 17:21:22,836 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 7 places, 4 transitions, 19 flow. Second operand has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:22,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:21:22,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 274 [2022-11-25 17:21:22,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:21:23,035 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2022-11-25 17:21:23,036 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:21:23,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15 conditions, 3 events. 1/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/3 useless extension candidates. Maximal degree in co-relation 7. Up to 3 conditions per place. [2022-11-25 17:21:23,036 INFO L137 encePairwiseOnDemand]: 272/274 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2022-11-25 17:21:23,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 8 places, 3 transitions, 21 flow [2022-11-25 17:21:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:21:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:21:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2022-11-25 17:21:23,043 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7007299270072993 [2022-11-25 17:21:23,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 576 transitions. [2022-11-25 17:21:23,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 576 transitions. [2022-11-25 17:21:23,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:21:23,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 576 transitions. [2022-11-25 17:21:23,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:23,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:23,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:23,049 INFO L175 Difference]: Start difference. First operand has 7 places, 4 transitions, 19 flow. Second operand 3 states and 576 transitions. [2022-11-25 17:21:23,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 8 places, 3 transitions, 21 flow [2022-11-25 17:21:23,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 7 places, 3 transitions, 17 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:21:23,051 INFO L231 Difference]: Finished difference. Result has 7 places, 0 transitions, 0 flow [2022-11-25 17:21:23,051 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=11, PETRI_DIFFERENCE_MINUEND_PLACES=5, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=7, PETRI_TRANSITIONS=0} [2022-11-25 17:21:23,053 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 3 predicate places. [2022-11-25 17:21:23,053 INFO L495 AbstractCegarLoop]: Abstraction has has 7 places, 0 transitions, 0 flow [2022-11-25 17:21:23,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:23,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 3 remaining) [2022-11-25 17:21:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 3 remaining) [2022-11-25 17:21:23,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-25 17:21:23,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:21:23,059 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 17:21:23,064 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:21:23,065 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:21:23,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:21:23 BasicIcfg [2022-11-25 17:21:23,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:21:23,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:21:23,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:21:23,075 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:21:23,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:39" (3/4) ... [2022-11-25 17:21:23,079 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:21:23,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 17:21:23,096 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-25 17:21:23,096 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-25 17:21:23,097 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:21:23,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:21:23,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:21:23,154 INFO L158 Benchmark]: Toolchain (without parser) took 46626.06ms. Allocated memory was 119.5MB in the beginning and 207.6MB in the end (delta: 88.1MB). Free memory was 74.8MB in the beginning and 78.8MB in the end (delta: -4.0MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. [2022-11-25 17:21:23,154 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:21:23,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1308.24ms. Allocated memory was 119.5MB in the beginning and 172.0MB in the end (delta: 52.4MB). Free memory was 74.4MB in the beginning and 131.1MB in the end (delta: -56.7MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2022-11-25 17:21:23,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.42ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 127.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:21:23,155 INFO L158 Benchmark]: Boogie Preprocessor took 106.69ms. Allocated memory is still 172.0MB. Free memory was 127.9MB in the beginning and 125.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:21:23,155 INFO L158 Benchmark]: RCFGBuilder took 957.81ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 102.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 17:21:23,156 INFO L158 Benchmark]: TraceAbstraction took 44066.99ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 101.7MB in the beginning and 82.0MB in the end (delta: 19.7MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2022-11-25 17:21:23,156 INFO L158 Benchmark]: Witness Printer took 78.23ms. Allocated memory is still 207.6MB. Free memory was 82.0MB in the beginning and 78.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:21:23,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1308.24ms. Allocated memory was 119.5MB in the beginning and 172.0MB in the end (delta: 52.4MB). Free memory was 74.4MB in the beginning and 131.1MB in the end (delta: -56.7MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.42ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 127.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.69ms. Allocated memory is still 172.0MB. Free memory was 127.9MB in the beginning and 125.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 957.81ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 102.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 44066.99ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 101.7MB in the beginning and 82.0MB in the end (delta: 19.7MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Witness Printer took 78.23ms. Allocated memory is still 207.6MB. Free memory was 82.0MB in the beginning and 78.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.8s, 66 PlacesBefore, 4 PlacesAfterwards, 66 TransitionsBefore, 4 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 7 FixpointIterations, 64 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 73 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 242 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 43.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 42.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 11 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=2, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:21:23,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484cf088-a7fe-4a11-908e-ab604cb85973/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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