./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053.opt.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_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/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_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/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_c35846e8-1b05-4092-8290-a5126b2bf963/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 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 --- 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 16:18:50,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:18:50,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:18:50,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:18:50,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:18:50,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:18:50,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:18:50,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:18:50,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:18:50,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:18:50,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:18:50,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:18:50,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:18:50,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:18:50,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:18:50,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:18:50,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:18:50,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:18:50,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:18:50,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:18:50,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:18:50,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:18:50,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:18:50,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:18:50,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:18:50,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:18:50,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:18:50,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:18:50,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:18:50,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:18:50,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:18:50,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:18:50,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:18:50,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:18:50,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:18:50,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:18:50,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:18:50,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:18:50,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:18:50,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:18:50,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:18:50,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:18:50,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:18:50,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:18:50,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:18:50,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:18:50,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:18:50,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:18:50,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:18:50,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:18:50,953 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:18:50,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:18:50,955 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:18:50,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:18:50,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:18:50,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:18:50,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:18:50,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:18:50,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:18:50,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:18:50,957 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:18:50,958 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:18:50,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:18:50,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:18:50,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:18:50,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:18:50,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:18:50,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:18:50,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:18:50,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:18:50,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:18:50,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:18:50,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:18:50,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:18:50,961 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:18:50,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:18:50,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:18:50,962 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_c35846e8-1b05-4092-8290-a5126b2bf963/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 [2022-11-21 16:18:51,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:18:51,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:18:51,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:18:51,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:18:51,349 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:18:51,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix053.opt.i [2022-11-21 16:18:54,409 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:18:54,698 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:18:54,698 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/sv-benchmarks/c/pthread-wmm/mix053.opt.i [2022-11-21 16:18:54,712 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/data/84ef83e3a/5c3f78877fbd4d25ba4a63c567c2f0ee/FLAG8a17b0e2b [2022-11-21 16:18:54,728 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/data/84ef83e3a/5c3f78877fbd4d25ba4a63c567c2f0ee [2022-11-21 16:18:54,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:18:54,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:18:54,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:18:54,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:18:54,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:18:54,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:18:54" (1/1) ... [2022-11-21 16:18:54,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b9dd23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:54, skipping insertion in model container [2022-11-21 16:18:54,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:18:54" (1/1) ... [2022-11-21 16:18:54,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:18:54,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:18:54,962 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_c35846e8-1b05-4092-8290-a5126b2bf963/sv-benchmarks/c/pthread-wmm/mix053.opt.i[944,957] [2022-11-21 16:18:55,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:18:55,186 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:18:55,200 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_c35846e8-1b05-4092-8290-a5126b2bf963/sv-benchmarks/c/pthread-wmm/mix053.opt.i[944,957] [2022-11-21 16:18:55,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:18:55,343 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:18:55,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55 WrapperNode [2022-11-21 16:18:55,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:18:55,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:18:55,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:18:55,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:18:55,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,441 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-11-21 16:18:55,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:18:55,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:18:55,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:18:55,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:18:55,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,497 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:18:55,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:18:55,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:18:55,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:18:55,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (1/1) ... [2022-11-21 16:18:55,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:18:55,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:18:55,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:18:55,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:18:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:18:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:18:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:18:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:18:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:18:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:18:55,594 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:18:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:18:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:18:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:18:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:18:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 16:18:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 16:18:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:18:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:18:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:18:55,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:18:55,598 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 16:18:55,800 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:18:55,802 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:18:56,338 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:18:56,501 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:18:56,501 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:18:56,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:18:56 BoogieIcfgContainer [2022-11-21 16:18:56,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:18:56,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:18:56,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:18:56,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:18:56,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:18:54" (1/3) ... [2022-11-21 16:18:56,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f559408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:18:56, skipping insertion in model container [2022-11-21 16:18:56,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:55" (2/3) ... [2022-11-21 16:18:56,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f559408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:18:56, skipping insertion in model container [2022-11-21 16:18:56,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:18:56" (3/3) ... [2022-11-21 16:18:56,514 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053.opt.i [2022-11-21 16:18:56,524 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:18:56,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:18:56,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 16:18:56,537 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:18:56,606 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:18:56,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 138 transitions, 296 flow [2022-11-21 16:18:56,717 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-11-21 16:18:56,718 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:18:56,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-11-21 16:18:56,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 138 transitions, 296 flow [2022-11-21 16:18:56,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 134 transitions, 280 flow [2022-11-21 16:18:56,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:18:56,747 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;@3ec4fa6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:18:56,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-21 16:18:56,762 INFO L130 PetriNetUnfolder]: 0/53 cut-off events. [2022-11-21 16:18:56,763 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:18:56,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:56,764 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:18:56,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:18:56,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:56,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1760983439, now seen corresponding path program 1 times [2022-11-21 16:18:56,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:56,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792810284] [2022-11-21 16:18:56,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:56,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:57,227 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 16:18:57,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:57,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792810284] [2022-11-21 16:18:57,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792810284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:57,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:57,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:18:57,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978192696] [2022-11-21 16:18:57,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:57,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:18:57,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:57,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:18:57,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:18:57,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 138 [2022-11-21 16:18:57,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 134 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 16:18:57,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:57,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 138 [2022-11-21 16:18:57,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:58,410 INFO L130 PetriNetUnfolder]: 2210/3854 cut-off events. [2022-11-21 16:18:58,411 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-21 16:18:58,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7159 conditions, 3854 events. 2210/3854 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 28449 event pairs, 825 based on Foata normal form. 595/3093 useless extension candidates. Maximal degree in co-relation 7103. Up to 3146 conditions per place. [2022-11-21 16:18:58,473 INFO L137 encePairwiseOnDemand]: 123/138 looper letters, 29 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2022-11-21 16:18:58,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 143 transitions, 375 flow [2022-11-21 16:18:58,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:18:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:18:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2022-11-21 16:18:58,494 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9299516908212561 [2022-11-21 16:18:58,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2022-11-21 16:18:58,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2022-11-21 16:18:58,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:58,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2022-11-21 16:18:58,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 16:18:58,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 16:18:58,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 16:18:58,518 INFO L175 Difference]: Start difference. First operand has 145 places, 134 transitions, 280 flow. Second operand 3 states and 385 transitions. [2022-11-21 16:18:58,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 143 transitions, 375 flow [2022-11-21 16:18:58,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 143 transitions, 368 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:18:58,531 INFO L231 Difference]: Finished difference. Result has 143 places, 135 transitions, 317 flow [2022-11-21 16:18:58,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=317, PETRI_PLACES=143, PETRI_TRANSITIONS=135} [2022-11-21 16:18:58,539 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -2 predicate places. [2022-11-21 16:18:58,540 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 135 transitions, 317 flow [2022-11-21 16:18:58,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 16:18:58,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:58,541 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 16:18:58,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:18:58,542 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:18:58,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:58,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2141416303, now seen corresponding path program 1 times [2022-11-21 16:18:58,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:58,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258802952] [2022-11-21 16:18:58,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:58,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:58,817 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 16:18:58,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:58,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258802952] [2022-11-21 16:18:58,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258802952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:58,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:58,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:18:58,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239754824] [2022-11-21 16:18:58,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:58,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:18:58,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:58,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:18:58,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:18:58,830 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 138 [2022-11-21 16:18:58,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 317 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 16:18:58,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:58,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 138 [2022-11-21 16:18:58,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:59,598 INFO L130 PetriNetUnfolder]: 1230/2630 cut-off events. [2022-11-21 16:18:59,599 INFO L131 PetriNetUnfolder]: For 151/151 co-relation queries the response was YES. [2022-11-21 16:18:59,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5860 conditions, 2630 events. 1230/2630 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 20724 event pairs, 534 based on Foata normal form. 0/1960 useless extension candidates. Maximal degree in co-relation 5805. Up to 1142 conditions per place. [2022-11-21 16:18:59,633 INFO L137 encePairwiseOnDemand]: 125/138 looper letters, 36 selfloop transitions, 13 changer transitions 0/158 dead transitions. [2022-11-21 16:18:59,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 158 transitions, 487 flow [2022-11-21 16:18:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:18:59,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:18:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 505 transitions. [2022-11-21 16:18:59,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9148550724637681 [2022-11-21 16:18:59,637 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 505 transitions. [2022-11-21 16:18:59,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 505 transitions. [2022-11-21 16:18:59,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:59,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 505 transitions. [2022-11-21 16:18:59,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.25) internal successors, (505), 4 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 16:18:59,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 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 16:18:59,642 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 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 16:18:59,642 INFO L175 Difference]: Start difference. First operand has 143 places, 135 transitions, 317 flow. Second operand 4 states and 505 transitions. [2022-11-21 16:18:59,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 158 transitions, 487 flow [2022-11-21 16:18:59,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 158 transitions, 482 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:18:59,650 INFO L231 Difference]: Finished difference. Result has 147 places, 143 transitions, 415 flow [2022-11-21 16:18:59,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=415, PETRI_PLACES=147, PETRI_TRANSITIONS=143} [2022-11-21 16:18:59,652 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 2 predicate places. [2022-11-21 16:18:59,652 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 143 transitions, 415 flow [2022-11-21 16:18:59,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 16:18:59,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:59,653 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 16:18:59,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:18:59,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:18:59,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:59,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2023652114, now seen corresponding path program 1 times [2022-11-21 16:18:59,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:59,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362228779] [2022-11-21 16:18:59,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:59,774 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 16:18:59,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:59,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362228779] [2022-11-21 16:18:59,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362228779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:59,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:59,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:18:59,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207695733] [2022-11-21 16:18:59,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:59,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:18:59,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:59,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:18:59,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:18:59,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 138 [2022-11-21 16:18:59,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 143 transitions, 415 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 16:18:59,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:59,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 138 [2022-11-21 16:18:59,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:19:00,129 INFO L130 PetriNetUnfolder]: 472/1134 cut-off events. [2022-11-21 16:19:00,130 INFO L131 PetriNetUnfolder]: For 596/596 co-relation queries the response was YES. [2022-11-21 16:19:00,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2827 conditions, 1134 events. 472/1134 cut-off events. For 596/596 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 7409 event pairs, 50 based on Foata normal form. 226/1230 useless extension candidates. Maximal degree in co-relation 2769. Up to 691 conditions per place. [2022-11-21 16:19:00,146 INFO L137 encePairwiseOnDemand]: 129/138 looper letters, 29 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2022-11-21 16:19:00,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 143 transitions, 449 flow [2022-11-21 16:19:00,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:19:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:19:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 486 transitions. [2022-11-21 16:19:00,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8804347826086957 [2022-11-21 16:19:00,148 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 486 transitions. [2022-11-21 16:19:00,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 486 transitions. [2022-11-21 16:19:00,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:19:00,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 486 transitions. [2022-11-21 16:19:00,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 16:19:00,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 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 16:19:00,153 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 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 16:19:00,153 INFO L175 Difference]: Start difference. First operand has 147 places, 143 transitions, 415 flow. Second operand 4 states and 486 transitions. [2022-11-21 16:19:00,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 143 transitions, 449 flow [2022-11-21 16:19:00,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 143 transitions, 426 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-21 16:19:00,162 INFO L231 Difference]: Finished difference. Result has 143 places, 135 transitions, 346 flow [2022-11-21 16:19:00,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=346, PETRI_PLACES=143, PETRI_TRANSITIONS=135} [2022-11-21 16:19:00,163 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -2 predicate places. [2022-11-21 16:19:00,163 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 135 transitions, 346 flow [2022-11-21 16:19:00,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 16:19:00,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:19:00,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:19:00,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:19:00,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:19:00,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:00,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1839626457, now seen corresponding path program 1 times [2022-11-21 16:19:00,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:00,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889289805] [2022-11-21 16:19:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:00,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:00,318 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 16:19:00,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:00,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889289805] [2022-11-21 16:19:00,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889289805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:00,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:00,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:19:00,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426987226] [2022-11-21 16:19:00,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:00,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:19:00,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:00,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:19:00,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:19:00,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 138 [2022-11-21 16:19:00,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 16:19:00,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:19:00,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 138 [2022-11-21 16:19:00,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:19:00,628 INFO L130 PetriNetUnfolder]: 334/894 cut-off events. [2022-11-21 16:19:00,629 INFO L131 PetriNetUnfolder]: For 390/390 co-relation queries the response was YES. [2022-11-21 16:19:00,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1917 conditions, 894 events. 334/894 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5432 event pairs, 17 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 1860. Up to 203 conditions per place. [2022-11-21 16:19:00,638 INFO L137 encePairwiseOnDemand]: 129/138 looper letters, 34 selfloop transitions, 13 changer transitions 4/160 dead transitions. [2022-11-21 16:19:00,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 160 transitions, 526 flow [2022-11-21 16:19:00,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:19:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:19:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 620 transitions. [2022-11-21 16:19:00,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8985507246376812 [2022-11-21 16:19:00,641 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 620 transitions. [2022-11-21 16:19:00,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 620 transitions. [2022-11-21 16:19:00,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:19:00,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 620 transitions. [2022-11-21 16:19:00,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 16:19:00,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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 16:19:00,646 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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 16:19:00,646 INFO L175 Difference]: Start difference. First operand has 143 places, 135 transitions, 346 flow. Second operand 5 states and 620 transitions. [2022-11-21 16:19:00,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 160 transitions, 526 flow [2022-11-21 16:19:00,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 160 transitions, 520 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:19:00,651 INFO L231 Difference]: Finished difference. Result has 146 places, 135 transitions, 382 flow [2022-11-21 16:19:00,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=382, PETRI_PLACES=146, PETRI_TRANSITIONS=135} [2022-11-21 16:19:00,652 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 1 predicate places. [2022-11-21 16:19:00,652 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 135 transitions, 382 flow [2022-11-21 16:19:00,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 16:19:00,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:19:00,653 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:19:00,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:19:00,654 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:19:00,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:00,654 INFO L85 PathProgramCache]: Analyzing trace with hash -728676101, now seen corresponding path program 1 times [2022-11-21 16:19:00,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:00,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757214550] [2022-11-21 16:19:00,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:00,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:00,941 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 16:19:00,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:00,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757214550] [2022-11-21 16:19:00,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757214550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:00,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:00,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:19:00,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335807885] [2022-11-21 16:19:00,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:00,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:19:00,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:00,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:19:00,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:19:00,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 138 [2022-11-21 16:19:00,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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 16:19:00,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:19:00,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 138 [2022-11-21 16:19:00,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:19:01,265 INFO L130 PetriNetUnfolder]: 315/918 cut-off events. [2022-11-21 16:19:01,265 INFO L131 PetriNetUnfolder]: For 922/922 co-relation queries the response was YES. [2022-11-21 16:19:01,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 918 events. 315/918 cut-off events. For 922/922 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5413 event pairs, 55 based on Foata normal form. 12/896 useless extension candidates. Maximal degree in co-relation 2105. Up to 191 conditions per place. [2022-11-21 16:19:01,272 INFO L137 encePairwiseOnDemand]: 129/138 looper letters, 0 selfloop transitions, 0 changer transitions 152/152 dead transitions. [2022-11-21 16:19:01,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 152 transitions, 490 flow [2022-11-21 16:19:01,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:19:01,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:19:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2022-11-21 16:19:01,276 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8756038647342995 [2022-11-21 16:19:01,276 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 725 transitions. [2022-11-21 16:19:01,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 725 transitions. [2022-11-21 16:19:01,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:19:01,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 725 transitions. [2022-11-21 16:19:01,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 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 16:19:01,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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 16:19:01,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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 16:19:01,283 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 382 flow. Second operand 6 states and 725 transitions. [2022-11-21 16:19:01,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 152 transitions, 490 flow [2022-11-21 16:19:01,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 435 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-21 16:19:01,289 INFO L231 Difference]: Finished difference. Result has 141 places, 0 transitions, 0 flow [2022-11-21 16:19:01,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=141, PETRI_TRANSITIONS=0} [2022-11-21 16:19:01,290 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -4 predicate places. [2022-11-21 16:19:01,291 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 0 transitions, 0 flow [2022-11-21 16:19:01,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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 16:19:01,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-21 16:19:01,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-21 16:19:01,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-21 16:19:01,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-21 16:19:01,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-21 16:19:01,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-21 16:19:01,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-21 16:19:01,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-21 16:19:01,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-21 16:19:01,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-21 16:19:01,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-21 16:19:01,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-21 16:19:01,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-21 16:19:01,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-21 16:19:01,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-21 16:19:01,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-21 16:19:01,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-21 16:19:01,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-21 16:19:01,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-21 16:19:01,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-21 16:19:01,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:19:01,302 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 16:19:01,308 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:19:01,308 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:19:01,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:19:01 BasicIcfg [2022-11-21 16:19:01,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:19:01,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:19:01,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:19:01,316 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:19:01,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:18:56" (3/4) ... [2022-11-21 16:19:01,319 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:19:01,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:19:01,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:19:01,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 16:19:01,326 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-21 16:19:01,332 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 16:19:01,332 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:19:01,332 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:19:01,333 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:19:01,376 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:19:01,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:19:01,378 INFO L158 Benchmark]: Toolchain (without parser) took 6644.80ms. Allocated memory was 134.2MB in the beginning and 388.0MB in the end (delta: 253.8MB). Free memory was 91.3MB in the beginning and 255.3MB in the end (delta: -164.0MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2022-11-21 16:19:01,378 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:19:01,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.26ms. Allocated memory is still 134.2MB. Free memory was 91.3MB in the beginning and 68.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 16:19:01,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.07ms. Allocated memory is still 134.2MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:19:01,379 INFO L158 Benchmark]: Boogie Preprocessor took 59.24ms. Allocated memory is still 134.2MB. Free memory was 66.2MB in the beginning and 64.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:19:01,380 INFO L158 Benchmark]: RCFGBuilder took 1002.08ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 64.1MB in the beginning and 120.1MB in the end (delta: -56.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 16:19:01,380 INFO L158 Benchmark]: TraceAbstraction took 4808.53ms. Allocated memory was 172.0MB in the beginning and 388.0MB in the end (delta: 216.0MB). Free memory was 119.0MB in the beginning and 258.4MB in the end (delta: -139.4MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. [2022-11-21 16:19:01,381 INFO L158 Benchmark]: Witness Printer took 61.60ms. Allocated memory is still 388.0MB. Free memory was 258.4MB in the beginning and 255.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:19:01,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.26ms. Allocated memory is still 134.2MB. Free memory was 91.3MB in the beginning and 68.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.07ms. Allocated memory is still 134.2MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.24ms. Allocated memory is still 134.2MB. Free memory was 66.2MB in the beginning and 64.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1002.08ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 64.1MB in the beginning and 120.1MB in the end (delta: -56.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4808.53ms. Allocated memory was 172.0MB in the beginning and 388.0MB in the end (delta: 216.0MB). Free memory was 119.0MB in the beginning and 258.4MB in the end (delta: -139.4MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. * Witness Printer took 61.60ms. Allocated memory is still 388.0MB. Free memory was 258.4MB in the beginning and 255.3MB 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: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: 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 9 procedures, 178 locations, 20 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: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 889 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:19:01,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35846e8-1b05-4092-8290-a5126b2bf963/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