./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe014_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/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_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe014_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/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_71f5660b-c58b-4e83-b016-6987cd86ff2f/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 09aaf4da9760e082dee1b84490861799ac10c7d3871bbdf2d8243e88d9e00b49 --- 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 16:24:42,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:24:42,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:24:42,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:24:42,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:24:42,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:24:42,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:24:42,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:24:42,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:24:42,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:24:42,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:24:42,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:24:42,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:24:42,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:24:42,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:24:42,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:24:42,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:24:42,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:24:42,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:24:42,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:24:42,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:24:42,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:24:42,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:24:42,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:24:42,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:24:42,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:24:42,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:24:42,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:24:42,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:24:42,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:24:42,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:24:42,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:24:42,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:24:42,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:24:42,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:24:42,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:24:42,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:24:42,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:24:42,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:24:42,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:24:42,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:24:42,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:24:42,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:24:42,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:24:42,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:24:42,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:24:42,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:24:42,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:24:42,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:24:42,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:24:42,845 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:24:42,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:24:42,846 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:24:42,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:24:42,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:24:42,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:24:42,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:24:42,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:24:42,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:24:42,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:24:42,848 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:24:42,848 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:24:42,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:24:42,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:24:42,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:24:42,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:24:42,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:24:42,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:24:42,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:24:42,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:24:42,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:24:42,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:24:42,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:24:42,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:24:42,852 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:24:42,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:24:42,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:24:42,853 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_71f5660b-c58b-4e83-b016-6987cd86ff2f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09aaf4da9760e082dee1b84490861799ac10c7d3871bbdf2d8243e88d9e00b49 [2022-11-21 16:24:43,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:24:43,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:24:43,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:24:43,128 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:24:43,130 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:24:43,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe014_rmo.opt.i [2022-11-21 16:24:46,168 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:24:46,508 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:24:46,509 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/sv-benchmarks/c/pthread-wmm/safe014_rmo.opt.i [2022-11-21 16:24:46,549 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/data/ae9552de8/135c8cf1d767446fbe5f798e2e7d0907/FLAG3829e7a6c [2022-11-21 16:24:46,563 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/data/ae9552de8/135c8cf1d767446fbe5f798e2e7d0907 [2022-11-21 16:24:46,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:24:46,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:24:46,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:24:46,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:24:46,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:24:46,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:24:46" (1/1) ... [2022-11-21 16:24:46,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c842c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:46, skipping insertion in model container [2022-11-21 16:24:46,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:24:46" (1/1) ... [2022-11-21 16:24:46,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:24:46,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:24:46,849 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_71f5660b-c58b-4e83-b016-6987cd86ff2f/sv-benchmarks/c/pthread-wmm/safe014_rmo.opt.i[992,1005] [2022-11-21 16:24:47,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:24:47,188 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:24:47,205 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_71f5660b-c58b-4e83-b016-6987cd86ff2f/sv-benchmarks/c/pthread-wmm/safe014_rmo.opt.i[992,1005] [2022-11-21 16:24:47,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:24:47,354 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:24:47,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47 WrapperNode [2022-11-21 16:24:47,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:24:47,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:24:47,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:24:47,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:24:47,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,471 INFO L138 Inliner]: procedures = 176, calls = 82, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 167 [2022-11-21 16:24:47,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:24:47,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:24:47,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:24:47,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:24:47,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,549 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:24:47,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:24:47,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:24:47,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:24:47,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (1/1) ... [2022-11-21 16:24:47,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:24:47,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:47,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:24:47,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:24:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:24:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:24:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:24:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:24:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:24:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:24:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:24:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:24:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:24:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:24:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:24:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:24:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:24:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:24:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:24:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:24:47,701 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 16:24:47,900 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:24:47,903 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:24:48,619 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:24:49,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:24:49,019 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:24:49,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:49 BoogieIcfgContainer [2022-11-21 16:24:49,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:24:49,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:24:49,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:24:49,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:24:49,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:24:46" (1/3) ... [2022-11-21 16:24:49,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ee55ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:24:49, skipping insertion in model container [2022-11-21 16:24:49,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:47" (2/3) ... [2022-11-21 16:24:49,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ee55ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:24:49, skipping insertion in model container [2022-11-21 16:24:49,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:49" (3/3) ... [2022-11-21 16:24:49,032 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_rmo.opt.i [2022-11-21 16:24:49,042 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:24:49,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:24:49,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 16:24:49,054 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:24:49,173 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:24:49,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 137 transitions, 289 flow [2022-11-21 16:24:49,301 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-11-21 16:24:49,301 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:24:49,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 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 66 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-21 16:24:49,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 137 transitions, 289 flow [2022-11-21 16:24:49,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 134 transitions, 277 flow [2022-11-21 16:24:49,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:24:49,330 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;@51df6f47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:24:49,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-21 16:24:49,348 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-21 16:24:49,348 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:24:49,348 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:49,349 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] [2022-11-21 16:24:49,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:24:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:49,356 INFO L85 PathProgramCache]: Analyzing trace with hash 115463463, now seen corresponding path program 1 times [2022-11-21 16:24:49,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:49,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073013221] [2022-11-21 16:24:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:49,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:50,016 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 16:24:50,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:50,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073013221] [2022-11-21 16:24:50,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073013221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:50,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:50,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:24:50,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415651128] [2022-11-21 16:24:50,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:50,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:50,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:50,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:50,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:50,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-21 16:24:50,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 16:24:50,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:50,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-21 16:24:50,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:51,002 INFO L130 PetriNetUnfolder]: 581/2564 cut-off events. [2022-11-21 16:24:51,002 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-21 16:24:51,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3529 conditions, 2564 events. 581/2564 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 23295 event pairs, 393 based on Foata normal form. 134/2326 useless extension candidates. Maximal degree in co-relation 3458. Up to 798 conditions per place. [2022-11-21 16:24:51,027 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 28 selfloop transitions, 4 changer transitions 0/143 dead transitions. [2022-11-21 16:24:51,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 143 transitions, 365 flow [2022-11-21 16:24:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:24:51,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-11-21 16:24:51,049 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9343065693430657 [2022-11-21 16:24:51,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-11-21 16:24:51,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-11-21 16:24:51,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:51,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-11-21 16:24:51,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 16:24:51,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 16:24:51,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 16:24:51,073 INFO L175 Difference]: Start difference. First operand has 142 places, 134 transitions, 277 flow. Second operand 3 states and 384 transitions. [2022-11-21 16:24:51,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 143 transitions, 365 flow [2022-11-21 16:24:51,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 143 transitions, 360 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 16:24:51,084 INFO L231 Difference]: Finished difference. Result has 141 places, 134 transitions, 304 flow [2022-11-21 16:24:51,086 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2022-11-21 16:24:51,093 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, -1 predicate places. [2022-11-21 16:24:51,093 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 304 flow [2022-11-21 16:24:51,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 16:24:51,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:51,094 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] [2022-11-21 16:24:51,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:24:51,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:24:51,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:51,097 INFO L85 PathProgramCache]: Analyzing trace with hash 30023722, now seen corresponding path program 1 times [2022-11-21 16:24:51,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:51,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963671721] [2022-11-21 16:24:51,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:51,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:51,313 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 16:24:51,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:51,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963671721] [2022-11-21 16:24:51,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963671721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:51,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:51,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:51,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335895135] [2022-11-21 16:24:51,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:51,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:24:51,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:24:51,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:24:51,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-21 16:24:51,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 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) [2022-11-21 16:24:51,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:51,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-21 16:24:51,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:51,939 INFO L130 PetriNetUnfolder]: 415/1756 cut-off events. [2022-11-21 16:24:51,939 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-21 16:24:51,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2807 conditions, 1756 events. 415/1756 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14087 event pairs, 199 based on Foata normal form. 0/1564 useless extension candidates. Maximal degree in co-relation 2736. Up to 384 conditions per place. [2022-11-21 16:24:51,954 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 33 selfloop transitions, 10 changer transitions 3/157 dead transitions. [2022-11-21 16:24:51,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 157 transitions, 460 flow [2022-11-21 16:24:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:24:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:24:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 505 transitions. [2022-11-21 16:24:51,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9215328467153284 [2022-11-21 16:24:51,957 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 505 transitions. [2022-11-21 16:24:51,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 505 transitions. [2022-11-21 16:24:51,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:51,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 505 transitions. [2022-11-21 16:24:51,959 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 16:24:51,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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 16:24:51,962 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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 16:24:51,962 INFO L175 Difference]: Start difference. First operand has 141 places, 134 transitions, 304 flow. Second operand 4 states and 505 transitions. [2022-11-21 16:24:51,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 157 transitions, 460 flow [2022-11-21 16:24:51,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 157 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:24:51,967 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 360 flow [2022-11-21 16:24:51,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2022-11-21 16:24:51,968 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, 3 predicate places. [2022-11-21 16:24:51,969 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 360 flow [2022-11-21 16:24:51,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 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) [2022-11-21 16:24:51,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:51,970 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] [2022-11-21 16:24:51,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:24:51,970 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:24:51,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:51,971 INFO L85 PathProgramCache]: Analyzing trace with hash 30023723, now seen corresponding path program 1 times [2022-11-21 16:24:51,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:51,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677361653] [2022-11-21 16:24:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:51,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:52,203 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 16:24:52,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:52,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677361653] [2022-11-21 16:24:52,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677361653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:52,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:52,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424894950] [2022-11-21 16:24:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:52,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:24:52,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:24:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:24:52,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-21 16:24:52,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 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) [2022-11-21 16:24:52,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:52,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-21 16:24:52,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:52,567 INFO L130 PetriNetUnfolder]: 277/938 cut-off events. [2022-11-21 16:24:52,567 INFO L131 PetriNetUnfolder]: For 449/449 co-relation queries the response was YES. [2022-11-21 16:24:52,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 938 events. 277/938 cut-off events. For 449/449 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 6003 event pairs, 74 based on Foata normal form. 70/979 useless extension candidates. Maximal degree in co-relation 1676. Up to 313 conditions per place. [2022-11-21 16:24:52,577 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 25 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2022-11-21 16:24:52,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 140 transitions, 398 flow [2022-11-21 16:24:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:24:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:24:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 488 transitions. [2022-11-21 16:24:52,580 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8905109489051095 [2022-11-21 16:24:52,580 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 488 transitions. [2022-11-21 16:24:52,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 488 transitions. [2022-11-21 16:24:52,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:52,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 488 transitions. [2022-11-21 16:24:52,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 16:24:52,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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 16:24:52,585 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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 16:24:52,585 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 360 flow. Second operand 4 states and 488 transitions. [2022-11-21 16:24:52,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 140 transitions, 398 flow [2022-11-21 16:24:52,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 140 transitions, 380 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-21 16:24:52,593 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 308 flow [2022-11-21 16:24:52,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-11-21 16:24:52,608 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, 0 predicate places. [2022-11-21 16:24:52,608 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 308 flow [2022-11-21 16:24:52,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 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) [2022-11-21 16:24:52,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:52,609 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, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:52,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:24:52,609 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:24:52,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1103873097, now seen corresponding path program 1 times [2022-11-21 16:24:52,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:52,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398735699] [2022-11-21 16:24:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:52,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:52,807 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 16:24:52,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:52,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398735699] [2022-11-21 16:24:52,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398735699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:52,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:52,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:24:52,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385223157] [2022-11-21 16:24:52,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:52,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:24:52,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:52,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:24:52,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:24:52,811 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-21 16:24:52,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:52,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:52,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-21 16:24:52,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:53,144 INFO L130 PetriNetUnfolder]: 268/1123 cut-off events. [2022-11-21 16:24:53,144 INFO L131 PetriNetUnfolder]: For 377/377 co-relation queries the response was YES. [2022-11-21 16:24:53,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1123 events. 268/1123 cut-off events. For 377/377 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7576 event pairs, 110 based on Foata normal form. 12/1083 useless extension candidates. Maximal degree in co-relation 1769. Up to 196 conditions per place. [2022-11-21 16:24:53,149 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2022-11-21 16:24:53,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 145 transitions, 398 flow [2022-11-21 16:24:53,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:24:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:24:53,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 607 transitions. [2022-11-21 16:24:53,152 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8861313868613139 [2022-11-21 16:24:53,152 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 607 transitions. [2022-11-21 16:24:53,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 607 transitions. [2022-11-21 16:24:53,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:53,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 607 transitions. [2022-11-21 16:24:53,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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 16:24:53,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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 16:24:53,157 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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 16:24:53,157 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 308 flow. Second operand 5 states and 607 transitions. [2022-11-21 16:24:53,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 145 transitions, 398 flow [2022-11-21 16:24:53,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 145 transitions, 383 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:24:53,160 INFO L231 Difference]: Finished difference. Result has 139 places, 0 transitions, 0 flow [2022-11-21 16:24:53,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=139, PETRI_TRANSITIONS=0} [2022-11-21 16:24:53,161 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, -3 predicate places. [2022-11-21 16:24:53,161 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 0 transitions, 0 flow [2022-11-21 16:24:53,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:53,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-21 16:24:53,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-21 16:24:53,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-21 16:24:53,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-21 16:24:53,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-21 16:24:53,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-21 16:24:53,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-21 16:24:53,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-21 16:24:53,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-21 16:24:53,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-21 16:24:53,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-21 16:24:53,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-21 16:24:53,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-21 16:24:53,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-21 16:24:53,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-21 16:24:53,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:24:53,169 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 16:24:53,175 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:24:53,175 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:24:53,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:24:53 BasicIcfg [2022-11-21 16:24:53,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:24:53,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:24:53,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:24:53,183 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:24:53,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:49" (3/4) ... [2022-11-21 16:24:53,186 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:24:53,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:24:53,192 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:24:53,192 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 16:24:53,198 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2022-11-21 16:24:53,199 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 16:24:53,199 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-21 16:24:53,199 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:24:53,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:24:53,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:24:53,268 INFO L158 Benchmark]: Toolchain (without parser) took 6701.37ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 109.7MB in the beginning and 103.8MB in the end (delta: 5.9MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2022-11-21 16:24:53,268 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:24:53,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 787.12ms. Allocated memory is still 140.5MB. Free memory was 109.7MB in the beginning and 84.0MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 16:24:53,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.15ms. Allocated memory is still 140.5MB. Free memory was 84.0MB in the beginning and 81.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:24:53,269 INFO L158 Benchmark]: Boogie Preprocessor took 84.26ms. Allocated memory is still 140.5MB. Free memory was 81.3MB in the beginning and 78.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:24:53,269 INFO L158 Benchmark]: RCFGBuilder took 1465.45ms. Allocated memory is still 140.5MB. Free memory was 78.7MB in the beginning and 60.0MB in the end (delta: 18.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-21 16:24:53,270 INFO L158 Benchmark]: TraceAbstraction took 4156.98ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 59.4MB in the beginning and 108.0MB in the end (delta: -48.6MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2022-11-21 16:24:53,270 INFO L158 Benchmark]: Witness Printer took 85.25ms. Allocated memory is still 209.7MB. Free memory was 108.0MB in the beginning and 103.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:24:53,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 787.12ms. Allocated memory is still 140.5MB. Free memory was 109.7MB in the beginning and 84.0MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.15ms. Allocated memory is still 140.5MB. Free memory was 84.0MB in the beginning and 81.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.26ms. Allocated memory is still 140.5MB. Free memory was 81.3MB in the beginning and 78.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1465.45ms. Allocated memory is still 140.5MB. Free memory was 78.7MB in the beginning and 60.0MB in the end (delta: 18.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4156.98ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 59.4MB in the beginning and 108.0MB in the end (delta: -48.6MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. * Witness Printer took 85.25ms. Allocated memory is still 209.7MB. Free memory was 108.0MB in the beginning and 103.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 837]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 837]: 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 7 procedures, 168 locations, 15 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: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=360occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:24:53,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71f5660b-c58b-4e83-b016-6987cd86ff2f/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