./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi008.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi008.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a --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 e1d84228246cc640f111b0bf0907a0ec6838e3ee0e70770c8d77ae15dd23f4db --- 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-b5237d8 [2022-11-21 16:44:53,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:44:53,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:44:53,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:44:53,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:44:53,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:44:53,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:44:53,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:44:53,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:44:53,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:44:53,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:44:53,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:44:53,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:44:53,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:44:53,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:44:53,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:44:53,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:44:53,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:44:53,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:44:53,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:44:53,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:44:53,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:44:53,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:44:53,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:44:53,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:44:53,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:44:53,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:44:53,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:44:53,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:44:53,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:44:53,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:44:53,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:44:53,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:44:53,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:44:53,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:44:53,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:44:53,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:44:53,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:44:53,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:44:53,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:44:53,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:44:53,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:44:53,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:44:53,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:44:53,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:44:53,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:44:53,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:44:53,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:44:53,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:44:53,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:44:53,926 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:44:53,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:44:53,927 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:44:53,927 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:44:53,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:44:53,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:44:53,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:44:53,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:44:53,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:44:53,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:44:53,930 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:44:53,930 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:44:53,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:44:53,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:44:53,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:44:53,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:44:53,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:44:53,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:44:53,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:44:53,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:44:53,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:44:53,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:44:53,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:44:53,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:44:53,934 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:44:53,934 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:44:53,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:44:53,935 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_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1d84228246cc640f111b0bf0907a0ec6838e3ee0e70770c8d77ae15dd23f4db [2022-11-21 16:44:54,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:44:54,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:44:54,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:44:54,260 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:44:54,261 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:44:54,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/rfi008.oepc.i [2022-11-21 16:44:57,617 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:44:57,890 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:44:57,891 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/sv-benchmarks/c/pthread-wmm/rfi008.oepc.i [2022-11-21 16:44:57,905 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/data/bf246334d/4c6f6ed583174b74aac6583838a32ba4/FLAG0e2d57567 [2022-11-21 16:44:57,920 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/data/bf246334d/4c6f6ed583174b74aac6583838a32ba4 [2022-11-21 16:44:57,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:44:57,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:44:57,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:44:57,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:44:57,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:44:57,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:44:57" (1/1) ... [2022-11-21 16:44:57,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ff1fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:57, skipping insertion in model container [2022-11-21 16:44:57,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:44:57" (1/1) ... [2022-11-21 16:44:57,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:44:57,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:44:58,193 WARN L237 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_4761d1db-977b-4c50-8a1e-e6b5b03e3092/sv-benchmarks/c/pthread-wmm/rfi008.oepc.i[988,1001] [2022-11-21 16:44:58,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:44:58,504 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:44:58,517 WARN L237 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_4761d1db-977b-4c50-8a1e-e6b5b03e3092/sv-benchmarks/c/pthread-wmm/rfi008.oepc.i[988,1001] [2022-11-21 16:44:58,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:44:58,650 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:44:58,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58 WrapperNode [2022-11-21 16:44:58,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:44:58,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:44:58,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:44:58,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:44:58,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,744 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2022-11-21 16:44:58,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:44:58,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:44:58,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:44:58,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:44:58,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:44:58,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:44:58,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:44:58,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:44:58,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (1/1) ... [2022-11-21 16:44:58,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:44:58,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:44:58,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:44:58,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:44:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:44:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:44:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:44:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:44:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:44:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:44:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:44:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:44:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:44:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:44:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:44:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:44:58,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:44:58,913 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:44:59,081 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:44:59,083 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:44:59,538 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:44:59,758 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:44:59,759 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:44:59,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:44:59 BoogieIcfgContainer [2022-11-21 16:44:59,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:44:59,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:44:59,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:44:59,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:44:59,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:44:57" (1/3) ... [2022-11-21 16:44:59,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efc33b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:44:59, skipping insertion in model container [2022-11-21 16:44:59,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:58" (2/3) ... [2022-11-21 16:44:59,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efc33b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:44:59, skipping insertion in model container [2022-11-21 16:44:59,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:44:59" (3/3) ... [2022-11-21 16:44:59,809 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi008.oepc.i [2022-11-21 16:44:59,852 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:44:59,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:44:59,870 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 16:44:59,870 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:44:59,946 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:44:59,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 212 flow [2022-11-21 16:45:00,063 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-11-21 16:45:00,064 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:45:00,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 99 events. 2/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2022-11-21 16:45:00,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 101 transitions, 212 flow [2022-11-21 16:45:00,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 99 transitions, 204 flow [2022-11-21 16:45:00,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:45:00,104 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;@5f1cda83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:45:00,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-21 16:45:00,125 INFO L130 PetriNetUnfolder]: 0/53 cut-off events. [2022-11-21 16:45:00,125 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:45:00,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:45:00,126 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] [2022-11-21 16:45:00,127 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:45:00,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:00,134 INFO L85 PathProgramCache]: Analyzing trace with hash -514388254, now seen corresponding path program 1 times [2022-11-21 16:45:00,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:00,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973623205] [2022-11-21 16:45:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:00,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:00,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973623205] [2022-11-21 16:45:00,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973623205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:45:00,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:45:00,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:45:00,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789370005] [2022-11-21 16:45:00,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:45:00,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:45:00,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:00,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:45:00,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:45:00,734 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 101 [2022-11-21 16:45:00,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2022-11-21 16:45:00,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:45:00,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 101 [2022-11-21 16:45:00,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:45:00,993 INFO L130 PetriNetUnfolder]: 86/386 cut-off events. [2022-11-21 16:45:00,994 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 16:45:00,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 386 events. 86/386 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1849 event pairs, 43 based on Foata normal form. 20/363 useless extension candidates. Maximal degree in co-relation 516. Up to 84 conditions per place. [2022-11-21 16:45:01,003 INFO L137 encePairwiseOnDemand]: 92/101 looper letters, 21 selfloop transitions, 3 changer transitions 2/106 dead transitions. [2022-11-21 16:45:01,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 273 flow [2022-11-21 16:45:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:45:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:45:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2022-11-21 16:45:01,024 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9240924092409241 [2022-11-21 16:45:01,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2022-11-21 16:45:01,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2022-11-21 16:45:01,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:45:01,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2022-11-21 16:45:01,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2022-11-21 16:45:01,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2022-11-21 16:45:01,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2022-11-21 16:45:01,048 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 204 flow. Second operand 3 states and 280 transitions. [2022-11-21 16:45:01,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 273 flow [2022-11-21 16:45:01,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 106 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:45:01,056 INFO L231 Difference]: Finished difference. Result has 104 places, 96 transitions, 213 flow [2022-11-21 16:45:01,058 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=104, PETRI_TRANSITIONS=96} [2022-11-21 16:45:01,065 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 0 predicate places. [2022-11-21 16:45:01,065 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 96 transitions, 213 flow [2022-11-21 16:45:01,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2022-11-21 16:45:01,066 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:45:01,066 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] [2022-11-21 16:45:01,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:45:01,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:45:01,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:01,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1568153133, now seen corresponding path program 1 times [2022-11-21 16:45:01,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:01,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722995442] [2022-11-21 16:45:01,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:01,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:01,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:01,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722995442] [2022-11-21 16:45:01,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722995442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:45:01,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:45:01,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:45:01,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029780722] [2022-11-21 16:45:01,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:45:01,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:45:01,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:01,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:45:01,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:45:01,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 101 [2022-11-21 16:45:01,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 96 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2022-11-21 16:45:01,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:45:01,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 101 [2022-11-21 16:45:01,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:45:01,549 INFO L130 PetriNetUnfolder]: 77/362 cut-off events. [2022-11-21 16:45:01,549 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-21 16:45:01,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 362 events. 77/362 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1648 event pairs, 43 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 524. Up to 84 conditions per place. [2022-11-21 16:45:01,553 INFO L137 encePairwiseOnDemand]: 96/101 looper letters, 19 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2022-11-21 16:45:01,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 102 transitions, 267 flow [2022-11-21 16:45:01,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:45:01,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:45:01,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 352 transitions. [2022-11-21 16:45:01,557 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8712871287128713 [2022-11-21 16:45:01,558 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 352 transitions. [2022-11-21 16:45:01,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 352 transitions. [2022-11-21 16:45:01,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:45:01,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 352 transitions. [2022-11-21 16:45:01,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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) [2022-11-21 16:45:01,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2022-11-21 16:45:01,564 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2022-11-21 16:45:01,564 INFO L175 Difference]: Start difference. First operand has 104 places, 96 transitions, 213 flow. Second operand 4 states and 352 transitions. [2022-11-21 16:45:01,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 102 transitions, 267 flow [2022-11-21 16:45:01,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 102 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:45:01,569 INFO L231 Difference]: Finished difference. Result has 104 places, 94 transitions, 208 flow [2022-11-21 16:45:01,570 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=104, PETRI_TRANSITIONS=94} [2022-11-21 16:45:01,570 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 0 predicate places. [2022-11-21 16:45:01,571 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 94 transitions, 208 flow [2022-11-21 16:45:01,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2022-11-21 16:45:01,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:45:01,572 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] [2022-11-21 16:45:01,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:45:01,573 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:45:01,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:45:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1088029636, now seen corresponding path program 1 times [2022-11-21 16:45:01,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:45:01,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687306004] [2022-11-21 16:45:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:45:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:45:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:45:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:45:01,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:45:01,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687306004] [2022-11-21 16:45:01,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687306004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:45:01,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:45:01,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:45:01,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812451787] [2022-11-21 16:45:01,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:45:01,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:45:01,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:45:01,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:45:01,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:45:01,781 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 101 [2022-11-21 16:45:01,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 94 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2022-11-21 16:45:01,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:45:01,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 101 [2022-11-21 16:45:01,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:45:01,913 INFO L130 PetriNetUnfolder]: 73/385 cut-off events. [2022-11-21 16:45:01,913 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-11-21 16:45:01,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 385 events. 73/385 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1748 event pairs, 47 based on Foata normal form. 6/361 useless extension candidates. Maximal degree in co-relation 531. Up to 84 conditions per place. [2022-11-21 16:45:01,914 INFO L137 encePairwiseOnDemand]: 96/101 looper letters, 0 selfloop transitions, 0 changer transitions 100/100 dead transitions. [2022-11-21 16:45:01,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 258 flow [2022-11-21 16:45:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:45:01,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:45:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2022-11-21 16:45:01,917 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8663366336633663 [2022-11-21 16:45:01,917 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2022-11-21 16:45:01,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2022-11-21 16:45:01,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:45:01,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2022-11-21 16:45:01,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2022-11-21 16:45:01,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2022-11-21 16:45:01,920 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2022-11-21 16:45:01,920 INFO L175 Difference]: Start difference. First operand has 104 places, 94 transitions, 208 flow. Second operand 4 states and 350 transitions. [2022-11-21 16:45:01,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 258 flow [2022-11-21 16:45:01,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 100 transitions, 251 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 16:45:01,922 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2022-11-21 16:45:01,923 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2022-11-21 16:45:01,923 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -2 predicate places. [2022-11-21 16:45:01,924 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2022-11-21 16:45:01,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2022-11-21 16:45:01,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-21 16:45:01,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-21 16:45:01,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-21 16:45:01,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-21 16:45:01,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-21 16:45:01,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-21 16:45:01,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-21 16:45:01,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-21 16:45:01,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-21 16:45:01,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-21 16:45:01,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:45:01,930 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 16:45:01,936 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:45:01,936 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:45:01,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:45:01 BasicIcfg [2022-11-21 16:45:01,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:45:01,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:45:01,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:45:01,943 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:45:01,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:44:59" (3/4) ... [2022-11-21 16:45:01,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:45:01,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:45:01,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:45:01,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-21 16:45:01,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:45:01,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:45:01,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:45:01,992 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:45:01,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:45:01,993 INFO L158 Benchmark]: Toolchain (without parser) took 4069.10ms. Allocated memory is still 211.8MB. Free memory was 162.2MB in the beginning and 73.8MB in the end (delta: 88.4MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. [2022-11-21 16:45:01,994 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 146.8MB. Free memory was 87.8MB in the beginning and 87.7MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:45:01,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 725.53ms. Allocated memory is still 211.8MB. Free memory was 162.2MB in the beginning and 138.4MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 16:45:01,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.94ms. Allocated memory is still 211.8MB. Free memory was 138.4MB in the beginning and 135.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:45:01,995 INFO L158 Benchmark]: Boogie Preprocessor took 74.25ms. Allocated memory is still 211.8MB. Free memory was 135.6MB in the beginning and 134.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:45:01,995 INFO L158 Benchmark]: RCFGBuilder took 941.01ms. Allocated memory is still 211.8MB. Free memory was 133.5MB in the beginning and 96.5MB in the end (delta: 37.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-21 16:45:01,995 INFO L158 Benchmark]: TraceAbstraction took 2153.77ms. Allocated memory is still 211.8MB. Free memory was 177.8MB in the beginning and 76.9MB in the end (delta: 100.8MB). Peak memory consumption was 101.0MB. Max. memory is 16.1GB. [2022-11-21 16:45:01,996 INFO L158 Benchmark]: Witness Printer took 50.21ms. Allocated memory is still 211.8MB. Free memory was 76.9MB in the beginning and 73.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:45:01,998 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 146.8MB. Free memory was 87.8MB in the beginning and 87.7MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 725.53ms. Allocated memory is still 211.8MB. Free memory was 162.2MB in the beginning and 138.4MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.94ms. Allocated memory is still 211.8MB. Free memory was 138.4MB in the beginning and 135.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.25ms. Allocated memory is still 211.8MB. Free memory was 135.6MB in the beginning and 134.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 941.01ms. Allocated memory is still 211.8MB. Free memory was 133.5MB in the beginning and 96.5MB in the end (delta: 37.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2153.77ms. Allocated memory is still 211.8MB. Free memory was 177.8MB in the beginning and 76.9MB in the end (delta: 100.8MB). Peak memory consumption was 101.0MB. Max. memory is 16.1GB. * Witness Printer took 50.21ms. Allocated memory is still 211.8MB. Free memory was 76.9MB in the beginning and 73.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: 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 5 procedures, 124 locations, 10 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: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.7s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 453 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! [2022-11-21 16:45:02,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4761d1db-977b-4c50-8a1e-e6b5b03e3092/bin/uautomizer-vX5HgA9Q3a/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