./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8 --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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- 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-e04fb08 [2022-11-16 12:41:53,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:41:53,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:41:53,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:41:53,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:41:53,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:41:53,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:41:53,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:41:53,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:41:53,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:41:53,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:41:53,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:41:53,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:41:53,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:41:53,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:41:53,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:41:53,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:41:53,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:41:53,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:41:53,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:41:53,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:41:53,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:41:53,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:41:53,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:41:53,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:41:53,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:41:53,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:41:53,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:41:53,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:41:53,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:41:53,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:41:53,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:41:53,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:41:53,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:41:53,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:41:53,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:41:53,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:41:53,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:41:53,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:41:53,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:41:53,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:41:53,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:41:53,867 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:41:53,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:41:53,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:41:53,868 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:41:53,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:41:53,869 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:41:53,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:41:53,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:41:53,870 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:41:53,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:41:53,870 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:41:53,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:41:53,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:41:53,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:41:53,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:41:53,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:41:53,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:41:53,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:41:53,872 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:41:53,872 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:41:53,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:41:53,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:41:53,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:41:53,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:41:53,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:41:53,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:41:53,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:41:53,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:41:53,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:41:53,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:41:53,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:41:53,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:41:53,880 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:41:53,881 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:41:53,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:41:53,881 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_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2022-11-16 12:41:54,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:41:54,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:41:54,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:41:54,249 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:41:54,250 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:41:54,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-16 12:41:54,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/data/85b5e1ed8/f4beb2b7a140419a9e3e4f18f2b480b7/FLAGbf39e8888 [2022-11-16 12:41:54,962 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:41:54,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-16 12:41:54,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/data/85b5e1ed8/f4beb2b7a140419a9e3e4f18f2b480b7/FLAGbf39e8888 [2022-11-16 12:41:55,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/data/85b5e1ed8/f4beb2b7a140419a9e3e4f18f2b480b7 [2022-11-16 12:41:55,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:41:55,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:41:55,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:41:55,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:41:55,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:41:55,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2488e86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55, skipping insertion in model container [2022-11-16 12:41:55,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:41:55,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:41:55,625 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-16 12:41:55,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:41:55,664 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:41:55,726 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-16 12:41:55,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:41:55,772 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:41:55,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55 WrapperNode [2022-11-16 12:41:55,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:41:55,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:41:55,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:41:55,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:41:55,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,827 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-16 12:41:55,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:41:55,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:41:55,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:41:55,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:41:55,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:41:55,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:41:55,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:41:55,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:41:55,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (1/1) ... [2022-11-16 12:41:55,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:41:55,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:41:55,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:41:55,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:41:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:41:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:41:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:41:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:41:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:41:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:41:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:41:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:41:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:41:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:41:55,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:41:55,958 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:41:56,155 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:41:56,157 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:41:56,422 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:41:56,430 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:41:56,430 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-16 12:41:56,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:56 BoogieIcfgContainer [2022-11-16 12:41:56,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:41:56,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:41:56,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:41:56,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:41:56,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:41:55" (1/3) ... [2022-11-16 12:41:56,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516d70df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:41:56, skipping insertion in model container [2022-11-16 12:41:56,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:55" (2/3) ... [2022-11-16 12:41:56,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516d70df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:41:56, skipping insertion in model container [2022-11-16 12:41:56,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:56" (3/3) ... [2022-11-16 12:41:56,458 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2022-11-16 12:41:56,471 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:41:56,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:41:56,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 12:41:56,483 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:41:56,597 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:41:56,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 115 transitions, 238 flow [2022-11-16 12:41:56,739 INFO L130 PetriNetUnfolder]: 9/114 cut-off events. [2022-11-16 12:41:56,740 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:41:56,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 114 events. 9/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 187 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 64. Up to 3 conditions per place. [2022-11-16 12:41:56,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 115 transitions, 238 flow [2022-11-16 12:41:56,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 104 transitions, 211 flow [2022-11-16 12:41:56,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:41:56,770 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;@38a8e21a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:41:56,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-16 12:41:56,791 INFO L130 PetriNetUnfolder]: 2/74 cut-off events. [2022-11-16 12:41:56,791 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:41:56,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:56,792 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:56,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:41:56,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash -937501210, now seen corresponding path program 1 times [2022-11-16 12:41:56,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:56,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473634315] [2022-11-16 12:41:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:57,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:57,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:57,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473634315] [2022-11-16 12:41:57,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473634315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:57,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:57,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:41:57,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747075983] [2022-11-16 12:41:57,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:57,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:41:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:57,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:41:57,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:41:57,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 115 [2022-11-16 12:41:57,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 104 transitions, 211 flow. Second operand has 11 states, 11 states have (on average 59.09090909090909) internal successors, (650), 11 states have internal predecessors, (650), 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) [2022-11-16 12:41:57,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:57,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 115 [2022-11-16 12:41:57,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:58,400 INFO L130 PetriNetUnfolder]: 22/191 cut-off events. [2022-11-16 12:41:58,400 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:41:58,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 191 events. 22/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 647 event pairs, 2 based on Foata normal form. 54/235 useless extension candidates. Maximal degree in co-relation 208. Up to 25 conditions per place. [2022-11-16 12:41:58,406 INFO L137 encePairwiseOnDemand]: 93/115 looper letters, 44 selfloop transitions, 11 changer transitions 9/106 dead transitions. [2022-11-16 12:41:58,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 106 transitions, 327 flow [2022-11-16 12:41:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:41:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:41:58,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 760 transitions. [2022-11-16 12:41:58,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5507246376811594 [2022-11-16 12:41:58,434 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 760 transitions. [2022-11-16 12:41:58,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 760 transitions. [2022-11-16 12:41:58,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:58,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 760 transitions. [2022-11-16 12:41:58,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 63.333333333333336) internal successors, (760), 12 states have internal predecessors, (760), 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) [2022-11-16 12:41:58,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 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) [2022-11-16 12:41:58,459 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 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) [2022-11-16 12:41:58,461 INFO L175 Difference]: Start difference. First operand has 99 places, 104 transitions, 211 flow. Second operand 12 states and 760 transitions. [2022-11-16 12:41:58,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 106 transitions, 327 flow [2022-11-16 12:41:58,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 106 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:41:58,471 INFO L231 Difference]: Finished difference. Result has 106 places, 83 transitions, 190 flow [2022-11-16 12:41:58,473 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=190, PETRI_PLACES=106, PETRI_TRANSITIONS=83} [2022-11-16 12:41:58,477 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 7 predicate places. [2022-11-16 12:41:58,478 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 83 transitions, 190 flow [2022-11-16 12:41:58,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 59.09090909090909) internal successors, (650), 11 states have internal predecessors, (650), 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) [2022-11-16 12:41:58,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:58,480 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:58,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:41:58,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:41:58,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:58,482 INFO L85 PathProgramCache]: Analyzing trace with hash 493874540, now seen corresponding path program 1 times [2022-11-16 12:41:58,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:58,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670127716] [2022-11-16 12:41:58,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:58,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:58,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:58,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670127716] [2022-11-16 12:41:58,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670127716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:58,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:58,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:41:58,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150274706] [2022-11-16 12:41:58,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:58,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:41:58,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:58,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:41:58,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:41:58,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 115 [2022-11-16 12:41:58,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 83 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 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) [2022-11-16 12:41:58,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:58,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 115 [2022-11-16 12:41:58,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:58,874 INFO L130 PetriNetUnfolder]: 24/150 cut-off events. [2022-11-16 12:41:58,874 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 12:41:58,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 150 events. 24/150 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 503 event pairs, 6 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 191. Up to 38 conditions per place. [2022-11-16 12:41:58,876 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 38 selfloop transitions, 5 changer transitions 1/92 dead transitions. [2022-11-16 12:41:58,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 92 transitions, 296 flow [2022-11-16 12:41:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:41:58,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:41:58,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 493 transitions. [2022-11-16 12:41:58,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6124223602484472 [2022-11-16 12:41:58,879 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 493 transitions. [2022-11-16 12:41:58,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 493 transitions. [2022-11-16 12:41:58,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:58,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 493 transitions. [2022-11-16 12:41:58,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 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) [2022-11-16 12:41:58,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 12:41:58,884 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 12:41:58,885 INFO L175 Difference]: Start difference. First operand has 106 places, 83 transitions, 190 flow. Second operand 7 states and 493 transitions. [2022-11-16 12:41:58,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 92 transitions, 296 flow [2022-11-16 12:41:58,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 274 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-16 12:41:58,888 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 174 flow [2022-11-16 12:41:58,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2022-11-16 12:41:58,890 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -8 predicate places. [2022-11-16 12:41:58,890 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 174 flow [2022-11-16 12:41:58,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 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) [2022-11-16 12:41:58,891 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:58,891 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:58,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:41:58,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-16 12:41:58,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:58,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1869758121, now seen corresponding path program 1 times [2022-11-16 12:41:58,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:58,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319271106] [2022-11-16 12:41:58,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:58,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:59,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:59,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:59,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319271106] [2022-11-16 12:41:59,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319271106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:59,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:59,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:41:59,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292409166] [2022-11-16 12:41:59,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:59,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 12:41:59,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:59,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 12:41:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:41:59,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 115 [2022-11-16 12:41:59,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 174 flow. Second operand has 14 states, 14 states have (on average 52.0) internal successors, (728), 14 states have internal predecessors, (728), 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) [2022-11-16 12:41:59,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:59,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 115 [2022-11-16 12:41:59,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:59,827 INFO L130 PetriNetUnfolder]: 24/157 cut-off events. [2022-11-16 12:41:59,828 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 12:41:59,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 157 events. 24/157 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 535 event pairs, 2 based on Foata normal form. 3/156 useless extension candidates. Maximal degree in co-relation 194. Up to 25 conditions per place. [2022-11-16 12:41:59,831 INFO L137 encePairwiseOnDemand]: 101/115 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2022-11-16 12:41:59,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 330 flow [2022-11-16 12:41:59,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:41:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:41:59,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 797 transitions. [2022-11-16 12:41:59,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46202898550724636 [2022-11-16 12:41:59,836 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 797 transitions. [2022-11-16 12:41:59,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 797 transitions. [2022-11-16 12:41:59,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:59,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 797 transitions. [2022-11-16 12:41:59,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.13333333333333) internal successors, (797), 15 states have internal predecessors, (797), 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) [2022-11-16 12:41:59,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 115.0) internal successors, (1840), 16 states have internal predecessors, (1840), 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) [2022-11-16 12:41:59,844 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 115.0) internal successors, (1840), 16 states have internal predecessors, (1840), 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) [2022-11-16 12:41:59,844 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 174 flow. Second operand 15 states and 797 transitions. [2022-11-16 12:41:59,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 330 flow [2022-11-16 12:41:59,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 98 transitions, 321 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:41:59,847 INFO L231 Difference]: Finished difference. Result has 98 places, 0 transitions, 0 flow [2022-11-16 12:41:59,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=98, PETRI_TRANSITIONS=0} [2022-11-16 12:41:59,848 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2022-11-16 12:41:59,848 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 0 transitions, 0 flow [2022-11-16 12:41:59,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 52.0) internal successors, (728), 14 states have internal predecessors, (728), 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) [2022-11-16 12:41:59,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-11-16 12:41:59,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-16 12:41:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-16 12:41:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-16 12:41:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-11-16 12:41:59,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-16 12:41:59,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-11-16 12:41:59,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-16 12:41:59,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-16 12:41:59,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:41:59,854 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 12:41:59,859 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:41:59,859 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:41:59,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:41:59 BasicIcfg [2022-11-16 12:41:59,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:41:59,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:41:59,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:41:59,866 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:41:59,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:56" (3/4) ... [2022-11-16 12:41:59,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:41:59,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 12:41:59,878 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-16 12:41:59,878 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:41:59,879 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:41:59,879 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:41:59,913 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:41:59,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:41:59,914 INFO L158 Benchmark]: Toolchain (without parser) took 4698.80ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 96.3MB in the beginning and 116.1MB in the end (delta: -19.8MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-11-16 12:41:59,914 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 67.5MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:41:59,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.58ms. Allocated memory is still 132.1MB. Free memory was 95.9MB in the beginning and 98.1MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:41:59,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.99ms. Allocated memory is still 132.1MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:41:59,915 INFO L158 Benchmark]: Boogie Preprocessor took 25.37ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 94.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:41:59,915 INFO L158 Benchmark]: RCFGBuilder took 574.94ms. Allocated memory is still 132.1MB. Free memory was 93.9MB in the beginning and 79.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:41:59,916 INFO L158 Benchmark]: TraceAbstraction took 3414.25ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 78.5MB in the beginning and 119.3MB in the end (delta: -40.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-16 12:41:59,916 INFO L158 Benchmark]: Witness Printer took 47.59ms. Allocated memory is still 178.3MB. Free memory was 119.3MB in the beginning and 116.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:41:59,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 67.5MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.58ms. Allocated memory is still 132.1MB. Free memory was 95.9MB in the beginning and 98.1MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.99ms. Allocated memory is still 132.1MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.37ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 94.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 574.94ms. Allocated memory is still 132.1MB. Free memory was 93.9MB in the beginning and 79.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3414.25ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 78.5MB in the beginning and 119.3MB in the end (delta: -40.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 47.59ms. Allocated memory is still 178.3MB. Free memory was 119.3MB in the beginning and 116.1MB 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: - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: 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, 144 locations, 9 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: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 236 mSDsluCounter, 493 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 409 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 516 IncrementalHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 84 mSDtfsCounter, 516 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=0, InterpolantAutomatonStates: 34, 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, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:41:59,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727d5e3b-3775-4956-b861-7ef92d6e4c85/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE