./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:59:08,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:59:08,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:59:08,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:59:08,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:59:08,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:59:08,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:59:08,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:59:08,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:59:08,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:59:08,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:59:08,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:59:08,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:59:08,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:59:08,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:59:08,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:59:08,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:59:08,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:59:08,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:59:08,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:59:08,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:59:08,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:59:08,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:59:08,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:59:08,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:59:08,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:59:08,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:59:08,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:59:08,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:59:08,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:59:08,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:59:08,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:59:08,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:59:08,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:59:08,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:59:08,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:59:08,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:59:08,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:59:08,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:59:08,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:59:08,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:59:08,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 16:59:08,911 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:59:08,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:59:08,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:59:08,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:59:08,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:59:08,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:59:08,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:59:08,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:59:08,916 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:59:08,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:59:08,918 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:59:08,918 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:59:08,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:59:08,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:59:08,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:59:08,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:59:08,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:59:08,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:59:08,919 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:59:08,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:59:08,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:59:08,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:59:08,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:59:08,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:59:08,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:59:08,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:59:08,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:59:08,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:59:08,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:59:08,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:59:08,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:59:08,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:59:08,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:59:08,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:59:08,923 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:59:08,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:59:08,923 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 [2022-11-25 16:59:09,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:59:09,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:59:09,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:59:09,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:59:09,277 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:59:09,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2022-11-25 16:59:12,382 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:59:12,630 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:59:12,631 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2022-11-25 16:59:12,638 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/data/8f00e85b8/c88c09f6c18a4017997b263b6ac5c260/FLAG0f8958816 [2022-11-25 16:59:12,652 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/data/8f00e85b8/c88c09f6c18a4017997b263b6ac5c260 [2022-11-25 16:59:12,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:59:12,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:59:12,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:59:12,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:59:12,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:59:12,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:12,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d9b5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12, skipping insertion in model container [2022-11-25 16:59:12,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:12,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:59:12,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:59:12,902 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_7092db2e-3c3f-4824-b39b-b078e2a769ad/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-11-25 16:59:12,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:59:12,918 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:59:12,941 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_7092db2e-3c3f-4824-b39b-b078e2a769ad/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-11-25 16:59:12,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:59:12,958 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:59:12,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12 WrapperNode [2022-11-25 16:59:12,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:59:12,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:59:12,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:59:12,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:59:12,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:12,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,024 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 170 [2022-11-25 16:59:13,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:59:13,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:59:13,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:59:13,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:59:13,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,072 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:59:13,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:59:13,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:59:13,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:59:13,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (1/1) ... [2022-11-25 16:59:13,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:59:13,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:13,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:59:13,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:59:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:59:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 16:59:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 16:59:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 16:59:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 16:59:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:59:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:59:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:59:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:59:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:59:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:59:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:59:13,179 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:59:13,276 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:59:13,278 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:59:13,630 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:59:13,646 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:59:13,646 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:59:13,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:59:13 BoogieIcfgContainer [2022-11-25 16:59:13,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:59:13,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:59:13,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:59:13,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:59:13,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:59:12" (1/3) ... [2022-11-25 16:59:13,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506d6d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:59:13, skipping insertion in model container [2022-11-25 16:59:13,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:59:12" (2/3) ... [2022-11-25 16:59:13,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506d6d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:59:13, skipping insertion in model container [2022-11-25 16:59:13,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:59:13" (3/3) ... [2022-11-25 16:59:13,674 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-11-25 16:59:13,691 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:59:13,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:59:13,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-25 16:59:13,703 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:59:13,933 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 16:59:13,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 221 places, 233 transitions, 482 flow [2022-11-25 16:59:14,114 INFO L130 PetriNetUnfolder]: 19/231 cut-off events. [2022-11-25 16:59:14,115 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 16:59:14,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 231 events. 19/231 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 507 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-11-25 16:59:14,125 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 233 transitions, 482 flow [2022-11-25 16:59:14,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 196 transitions, 401 flow [2022-11-25 16:59:14,142 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:59:14,165 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 196 transitions, 401 flow [2022-11-25 16:59:14,169 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 196 transitions, 401 flow [2022-11-25 16:59:14,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 196 transitions, 401 flow [2022-11-25 16:59:14,224 INFO L130 PetriNetUnfolder]: 16/196 cut-off events. [2022-11-25 16:59:14,224 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 16:59:14,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 196 events. 16/196 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 447 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-11-25 16:59:14,233 INFO L119 LiptonReduction]: Number of co-enabled transitions 12528 [2022-11-25 16:59:27,346 INFO L134 LiptonReduction]: Checked pairs total: 12001 [2022-11-25 16:59:27,346 INFO L136 LiptonReduction]: Total number of compositions: 269 [2022-11-25 16:59:27,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:59:27,386 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;@1bfb43b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:59:27,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-25 16:59:27,390 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-11-25 16:59:27,391 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:59:27,391 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:27,392 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 16:59:27,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-25 16:59:27,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:27,400 INFO L85 PathProgramCache]: Analyzing trace with hash 966953, now seen corresponding path program 1 times [2022-11-25 16:59:27,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:27,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453569036] [2022-11-25 16:59:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:27,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:27,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:27,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453569036] [2022-11-25 16:59:27,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453569036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:27,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:27,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:59:27,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618964998] [2022-11-25 16:59:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:27,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:59:27,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:27,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:59:27,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:59:27,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 502 [2022-11-25 16:59:27,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 222.5) internal successors, (445), 2 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:27,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:27,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 502 [2022-11-25 16:59:27,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:27,756 INFO L130 PetriNetUnfolder]: 105/202 cut-off events. [2022-11-25 16:59:27,756 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 16:59:27,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 202 events. 105/202 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 788 event pairs, 105 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 368. Up to 203 conditions per place. [2022-11-25 16:59:27,761 INFO L137 encePairwiseOnDemand]: 498/502 looper letters, 17 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-11-25 16:59:27,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 77 flow [2022-11-25 16:59:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:59:27,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 16:59:27,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 463 transitions. [2022-11-25 16:59:27,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46115537848605576 [2022-11-25 16:59:27,788 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 463 transitions. [2022-11-25 16:59:27,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 463 transitions. [2022-11-25 16:59:27,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:27,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 463 transitions. [2022-11-25 16:59:27,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:27,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:27,811 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:27,813 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 51 flow. Second operand 2 states and 463 transitions. [2022-11-25 16:59:27,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 77 flow [2022-11-25 16:59:27,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 72 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 16:59:27,822 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 38 flow [2022-11-25 16:59:27,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2022-11-25 16:59:27,830 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2022-11-25 16:59:27,830 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 38 flow [2022-11-25 16:59:27,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 222.5) internal successors, (445), 2 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:27,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:27,831 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 16:59:27,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:59:27,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-25 16:59:27,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:27,833 INFO L85 PathProgramCache]: Analyzing trace with hash 966979, now seen corresponding path program 1 times [2022-11-25 16:59:27,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:27,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280690896] [2022-11-25 16:59:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:27,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:28,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:28,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:28,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280690896] [2022-11-25 16:59:28,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280690896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:28,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:28,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:59:28,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643690071] [2022-11-25 16:59:28,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:28,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:59:28,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:59:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:59:28,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 502 [2022-11-25 16:59:28,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:28,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 502 [2022-11-25 16:59:28,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:28,152 INFO L130 PetriNetUnfolder]: 72/143 cut-off events. [2022-11-25 16:59:28,153 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:59:28,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 143 events. 72/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 498 event pairs, 72 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 297. Up to 143 conditions per place. [2022-11-25 16:59:28,157 INFO L137 encePairwiseOnDemand]: 499/502 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2022-11-25 16:59:28,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 15 transitions, 64 flow [2022-11-25 16:59:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:59:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:59:28,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 674 transitions. [2022-11-25 16:59:28,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44754316069057104 [2022-11-25 16:59:28,162 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 674 transitions. [2022-11-25 16:59:28,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 674 transitions. [2022-11-25 16:59:28,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:28,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 674 transitions. [2022-11-25 16:59:28,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,171 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,171 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 38 flow. Second operand 3 states and 674 transitions. [2022-11-25 16:59:28,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 15 transitions, 64 flow [2022-11-25 16:59:28,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 64 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:59:28,173 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 36 flow [2022-11-25 16:59:28,173 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2022-11-25 16:59:28,174 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2022-11-25 16:59:28,175 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 36 flow [2022-11-25 16:59:28,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,176 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:28,176 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 16:59:28,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:59:28,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-25 16:59:28,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash 966978, now seen corresponding path program 1 times [2022-11-25 16:59:28,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:28,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646021653] [2022-11-25 16:59:28,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:28,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:28,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:28,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646021653] [2022-11-25 16:59:28,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646021653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:28,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:28,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:59:28,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380108773] [2022-11-25 16:59:28,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:28,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:59:28,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:28,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:59:28,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:59:28,297 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 502 [2022-11-25 16:59:28,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:28,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 502 [2022-11-25 16:59:28,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:28,348 INFO L130 PetriNetUnfolder]: 45/94 cut-off events. [2022-11-25 16:59:28,348 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:59:28,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 94 events. 45/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 279 event pairs, 45 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 198. Up to 94 conditions per place. [2022-11-25 16:59:28,349 INFO L137 encePairwiseOnDemand]: 499/502 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2022-11-25 16:59:28,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 13 transitions, 58 flow [2022-11-25 16:59:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:59:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:59:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2022-11-25 16:59:28,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44621513944223107 [2022-11-25 16:59:28,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2022-11-25 16:59:28,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2022-11-25 16:59:28,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:28,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2022-11-25 16:59:28,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,359 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 36 flow. Second operand 3 states and 672 transitions. [2022-11-25 16:59:28,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 13 transitions, 58 flow [2022-11-25 16:59:28,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 13 transitions, 57 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:59:28,361 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 33 flow [2022-11-25 16:59:28,361 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2022-11-25 16:59:28,362 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -7 predicate places. [2022-11-25 16:59:28,362 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 33 flow [2022-11-25 16:59:28,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:28,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 16:59:28,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:59:28,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-25 16:59:28,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:28,364 INFO L85 PathProgramCache]: Analyzing trace with hash 966954, now seen corresponding path program 1 times [2022-11-25 16:59:28,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:28,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809998654] [2022-11-25 16:59:28,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:28,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:28,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:28,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:28,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809998654] [2022-11-25 16:59:28,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809998654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:28,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:28,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:59:28,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367894418] [2022-11-25 16:59:28,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:28,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:59:28,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:28,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:59:28,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:59:28,412 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 502 [2022-11-25 16:59:28,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:28,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 502 [2022-11-25 16:59:28,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:28,452 INFO L130 PetriNetUnfolder]: 24/55 cut-off events. [2022-11-25 16:59:28,452 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:59:28,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 55 events. 24/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 122 event pairs, 24 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 119. Up to 55 conditions per place. [2022-11-25 16:59:28,453 INFO L137 encePairwiseOnDemand]: 499/502 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2022-11-25 16:59:28,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 51 flow [2022-11-25 16:59:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:59:28,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:59:28,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2022-11-25 16:59:28,456 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4448871181938911 [2022-11-25 16:59:28,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2022-11-25 16:59:28,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2022-11-25 16:59:28,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:28,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2022-11-25 16:59:28,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,463 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,464 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 33 flow. Second operand 3 states and 670 transitions. [2022-11-25 16:59:28,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 51 flow [2022-11-25 16:59:28,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 50 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:59:28,465 INFO L231 Difference]: Finished difference. Result has 20 places, 11 transitions, 30 flow [2022-11-25 16:59:28,465 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2022-11-25 16:59:28,465 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2022-11-25 16:59:28,466 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 30 flow [2022-11-25 16:59:28,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,467 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:28,467 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 16:59:28,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:59:28,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-25 16:59:28,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:28,468 INFO L85 PathProgramCache]: Analyzing trace with hash 966976, now seen corresponding path program 1 times [2022-11-25 16:59:28,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:28,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992364364] [2022-11-25 16:59:28,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:28,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:28,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:28,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992364364] [2022-11-25 16:59:28,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992364364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:28,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:28,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:59:28,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409757376] [2022-11-25 16:59:28,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:28,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:59:28,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:28,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:59:28,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:59:28,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 502 [2022-11-25 16:59:28,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:28,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 502 [2022-11-25 16:59:28,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:28,602 INFO L130 PetriNetUnfolder]: 9/26 cut-off events. [2022-11-25 16:59:28,602 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:59:28,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 26 events. 9/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 9 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 60. Up to 26 conditions per place. [2022-11-25 16:59:28,603 INFO L137 encePairwiseOnDemand]: 499/502 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2022-11-25 16:59:28,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 9 transitions, 44 flow [2022-11-25 16:59:28,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:59:28,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:59:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2022-11-25 16:59:28,605 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4435590969455511 [2022-11-25 16:59:28,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 668 transitions. [2022-11-25 16:59:28,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 668 transitions. [2022-11-25 16:59:28,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:28,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 668 transitions. [2022-11-25 16:59:28,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,615 INFO L175 Difference]: Start difference. First operand has 20 places, 11 transitions, 30 flow. Second operand 3 states and 668 transitions. [2022-11-25 16:59:28,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 9 transitions, 44 flow [2022-11-25 16:59:28,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 9 transitions, 43 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:59:28,617 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2022-11-25 16:59:28,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2022-11-25 16:59:28,620 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -9 predicate places. [2022-11-25 16:59:28,620 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2022-11-25 16:59:28,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2022-11-25 16:59:28,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-11-25 16:59:28,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-11-25 16:59:28,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-11-25 16:59:28,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-11-25 16:59:28,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-11-25 16:59:28,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-11-25 16:59:28,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-11-25 16:59:28,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-11-25 16:59:28,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-11-25 16:59:28,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-11-25 16:59:28,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-11-25 16:59:28,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2022-11-25 16:59:28,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2022-11-25 16:59:28,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-11-25 16:59:28,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-11-25 16:59:28,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-11-25 16:59:28,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-11-25 16:59:28,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-11-25 16:59:28,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-11-25 16:59:28,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-11-25 16:59:28,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-11-25 16:59:28,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-11-25 16:59:28,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-11-25 16:59:28,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-11-25 16:59:28,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-11-25 16:59:28,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:59:28,637 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 16:59:28,643 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 16:59:28,643 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:59:28,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:59:28 BasicIcfg [2022-11-25 16:59:28,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:59:28,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:59:28,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:59:28,647 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:59:28,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:59:13" (3/4) ... [2022-11-25 16:59:28,650 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:59:28,657 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 16:59:28,657 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 16:59:28,661 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-25 16:59:28,661 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 16:59:28,662 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 16:59:28,662 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:59:28,690 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:59:28,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:59:28,691 INFO L158 Benchmark]: Toolchain (without parser) took 16034.56ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 135.8MB in the beginning and 176.3MB in the end (delta: -40.5MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-11-25 16:59:28,691 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 169.9MB. Free memory was 136.3MB in the beginning and 136.2MB in the end (delta: 19.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:59:28,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.24ms. Allocated memory is still 169.9MB. Free memory was 135.2MB in the beginning and 124.0MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 16:59:28,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.56ms. Allocated memory is still 169.9MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:28,692 INFO L158 Benchmark]: Boogie Preprocessor took 58.81ms. Allocated memory is still 169.9MB. Free memory was 121.9MB in the beginning and 120.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:59:28,693 INFO L158 Benchmark]: RCFGBuilder took 579.62ms. Allocated memory is still 169.9MB. Free memory was 120.5MB in the beginning and 100.8MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 16:59:28,693 INFO L158 Benchmark]: TraceAbstraction took 14979.11ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 100.1MB in the beginning and 179.4MB in the end (delta: -79.4MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. [2022-11-25 16:59:28,694 INFO L158 Benchmark]: Witness Printer took 43.51ms. Allocated memory is still 224.4MB. Free memory was 178.4MB in the beginning and 176.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:28,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 169.9MB. Free memory was 136.3MB in the beginning and 136.2MB in the end (delta: 19.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.24ms. Allocated memory is still 169.9MB. Free memory was 135.2MB in the beginning and 124.0MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.56ms. Allocated memory is still 169.9MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.81ms. Allocated memory is still 169.9MB. Free memory was 121.9MB in the beginning and 120.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 579.62ms. Allocated memory is still 169.9MB. Free memory was 120.5MB in the beginning and 100.8MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14979.11ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 100.1MB in the beginning and 179.4MB in the end (delta: -79.4MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. * Witness Printer took 43.51ms. Allocated memory is still 224.4MB. Free memory was 178.4MB in the beginning and 176.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.2s, 187 PlacesBefore, 28 PlacesAfterwards, 196 TransitionsBefore, 21 TransitionsAfterwards, 12528 CoEnabledTransitionPairs, 8 FixpointIterations, 38 TrivialSequentialCompositions, 156 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 59 ConcurrentYvCompositions, 16 ChoiceCompositions, 269 TotalNumberOfCompositions, 12001 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12001, independent: 12001, independent conditional: 0, independent unconditional: 12001, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9254, independent: 9254, independent conditional: 0, independent unconditional: 9254, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9254, independent: 9254, independent conditional: 0, independent unconditional: 9254, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12001, independent: 2747, independent conditional: 0, independent unconditional: 2747, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 9254, unknown conditional: 0, unknown unconditional: 9254] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: 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, 347 locations, 26 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: 14.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 5 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 16:59:28,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7092db2e-3c3f-4824-b39b-b078e2a769ad/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE