./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.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_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/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_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/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_ea6018fb-ffb9-457c-a08e-429e13103991/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 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- 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 16:28:56,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:28:56,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:28:56,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:28:56,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:28:56,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:28:56,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:28:56,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:28:56,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:28:56,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:28:56,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:28:56,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:28:56,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:28:56,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:28:56,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:28:56,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:28:56,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:28:56,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:28:56,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:28:56,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:28:56,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:28:56,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:28:56,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:28:56,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:28:56,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:28:56,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:28:56,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:28:56,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:28:56,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:28:56,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:28:56,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:28:56,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:28:56,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:28:56,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:28:56,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:28:56,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:28:56,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:28:56,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:28:56,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:28:56,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:28:56,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:28:56,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:28:56,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:28:56,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:28:56,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:28:56,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:28:56,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:28:56,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:28:56,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:28:56,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:28:56,503 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:28:56,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:28:56,504 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:28:56,504 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:28:56,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:28:56,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:28:56,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:28:56,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:28:56,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:28:56,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:28:56,506 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:28:56,506 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:28:56,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:28:56,507 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:28:56,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:28:56,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:28:56,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:28:56,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:28:56,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:28:56,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:28:56,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:28:56,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:28:56,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:28:56,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:28:56,511 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:28:56,511 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:28:56,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:28:56,511 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_ea6018fb-ffb9-457c-a08e-429e13103991/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2022-11-21 16:28:56,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:28:56,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:28:56,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:28:56,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:28:56,904 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:28:56,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-21 16:29:00,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:29:00,484 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:29:00,484 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-21 16:29:00,517 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/data/f124d3d17/baeec4f749c24c9585df7c99888d65a8/FLAGc4d701292 [2022-11-21 16:29:00,537 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/data/f124d3d17/baeec4f749c24c9585df7c99888d65a8 [2022-11-21 16:29:00,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:29:00,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:29:00,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:29:00,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:29:00,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:29:00,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:29:00" (1/1) ... [2022-11-21 16:29:00,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d64cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:00, skipping insertion in model container [2022-11-21 16:29:00,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:29:00" (1/1) ... [2022-11-21 16:29:00,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:29:00,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:29:01,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:29:01,388 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:29:01,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:29:01,553 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:29:01,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01 WrapperNode [2022-11-21 16:29:01,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:29:01,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:29:01,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:29:01,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:29:01,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,630 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 86 [2022-11-21 16:29:01,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:29:01,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:29:01,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:29:01,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:29:01,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,663 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:29:01,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:29:01,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:29:01,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:29:01,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:29:01,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:29:01,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:29:01,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:29:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:29:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:29:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:29:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:29:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:29:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:29:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:29:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:29:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:29:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 16:29:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 16:29:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:29:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:29:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:29:01,784 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 16:29:02,011 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:29:02,027 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:29:02,369 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:29:02,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:29:02,378 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:29:02,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:29:02 BoogieIcfgContainer [2022-11-21 16:29:02,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:29:02,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:29:02,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:29:02,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:29:02,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:29:00" (1/3) ... [2022-11-21 16:29:02,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca9944a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:29:02, skipping insertion in model container [2022-11-21 16:29:02,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01" (2/3) ... [2022-11-21 16:29:02,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca9944a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:29:02, skipping insertion in model container [2022-11-21 16:29:02,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:29:02" (3/3) ... [2022-11-21 16:29:02,398 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2022-11-21 16:29:02,409 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:29:02,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:29:02,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 16:29:02,422 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:29:02,530 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:29:02,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 133 transitions, 271 flow [2022-11-21 16:29:02,715 INFO L130 PetriNetUnfolder]: 0/132 cut-off events. [2022-11-21 16:29:02,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:29:02,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 132 events. 0/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-21 16:29:02,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 133 transitions, 271 flow [2022-11-21 16:29:02,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 124 transitions, 251 flow [2022-11-21 16:29:02,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:29:02,757 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;@c649621, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:29:02,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-21 16:29:02,787 INFO L130 PetriNetUnfolder]: 0/88 cut-off events. [2022-11-21 16:29:02,787 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:29:02,787 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:29:02,788 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] [2022-11-21 16:29:02,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:29:02,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:29:02,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2091410815, now seen corresponding path program 1 times [2022-11-21 16:29:02,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:29:02,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782711117] [2022-11-21 16:29:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:29:02,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:29:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:29:07,722 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 16:29:07,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:29:07,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782711117] [2022-11-21 16:29:07,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782711117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:29:07,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:29:07,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-21 16:29:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433779386] [2022-11-21 16:29:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:29:07,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-21 16:29:07,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:29:07,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-21 16:29:07,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2022-11-21 16:29:07,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 133 [2022-11-21 16:29:07,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 124 transitions, 251 flow. Second operand has 29 states, 29 states have (on average 55.13793103448276) internal successors, (1599), 29 states have internal predecessors, (1599), 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 16:29:07,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:29:07,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 133 [2022-11-21 16:29:07,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:29:11,918 INFO L130 PetriNetUnfolder]: 96/481 cut-off events. [2022-11-21 16:29:11,918 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:29:11,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 481 events. 96/481 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2102 event pairs, 5 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 618. Up to 40 conditions per place. [2022-11-21 16:29:11,925 INFO L137 encePairwiseOnDemand]: 96/133 looper letters, 90 selfloop transitions, 62 changer transitions 0/197 dead transitions. [2022-11-21 16:29:11,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 197 transitions, 701 flow [2022-11-21 16:29:11,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-21 16:29:11,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-21 16:29:11,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 2647 transitions. [2022-11-21 16:29:11,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42345224764037753 [2022-11-21 16:29:11,953 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 2647 transitions. [2022-11-21 16:29:11,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 2647 transitions. [2022-11-21 16:29:11,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:29:11,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 2647 transitions. [2022-11-21 16:29:11,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 56.319148936170215) internal successors, (2647), 47 states have internal predecessors, (2647), 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 16:29:11,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 133.0) internal successors, (6384), 48 states have internal predecessors, (6384), 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 16:29:11,992 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 133.0) internal successors, (6384), 48 states have internal predecessors, (6384), 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 16:29:11,995 INFO L175 Difference]: Start difference. First operand has 128 places, 124 transitions, 251 flow. Second operand 47 states and 2647 transitions. [2022-11-21 16:29:11,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 197 transitions, 701 flow [2022-11-21 16:29:12,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 197 transitions, 700 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:29:12,005 INFO L231 Difference]: Finished difference. Result has 172 places, 155 transitions, 448 flow [2022-11-21 16:29:12,007 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=448, PETRI_PLACES=172, PETRI_TRANSITIONS=155} [2022-11-21 16:29:12,011 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 44 predicate places. [2022-11-21 16:29:12,012 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 155 transitions, 448 flow [2022-11-21 16:29:12,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 55.13793103448276) internal successors, (1599), 29 states have internal predecessors, (1599), 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 16:29:12,013 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:29:12,014 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] [2022-11-21 16:29:12,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:29:12,014 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:29:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:29:12,015 INFO L85 PathProgramCache]: Analyzing trace with hash 409226134, now seen corresponding path program 1 times [2022-11-21 16:29:12,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:29:12,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302219752] [2022-11-21 16:29:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:29:12,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:29:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:29:15,468 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 16:29:15,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:29:15,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302219752] [2022-11-21 16:29:15,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302219752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:29:15,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:29:15,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-21 16:29:15,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432749232] [2022-11-21 16:29:15,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:29:15,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-21 16:29:15,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:29:15,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-21 16:29:15,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2022-11-21 16:29:15,481 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 133 [2022-11-21 16:29:15,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 155 transitions, 448 flow. Second operand has 29 states, 29 states have (on average 55.172413793103445) internal successors, (1600), 29 states have internal predecessors, (1600), 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 16:29:15,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:29:15,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 133 [2022-11-21 16:29:15,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:29:19,048 INFO L130 PetriNetUnfolder]: 88/450 cut-off events. [2022-11-21 16:29:19,048 INFO L131 PetriNetUnfolder]: For 46/52 co-relation queries the response was YES. [2022-11-21 16:29:19,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 450 events. 88/450 cut-off events. For 46/52 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1893 event pairs, 5 based on Foata normal form. 6/449 useless extension candidates. Maximal degree in co-relation 660. Up to 40 conditions per place. [2022-11-21 16:29:19,057 INFO L137 encePairwiseOnDemand]: 96/133 looper letters, 86 selfloop transitions, 62 changer transitions 0/193 dead transitions. [2022-11-21 16:29:19,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 193 transitions, 820 flow [2022-11-21 16:29:19,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-21 16:29:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-21 16:29:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 2643 transitions. [2022-11-21 16:29:19,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42281235002399614 [2022-11-21 16:29:19,069 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 2643 transitions. [2022-11-21 16:29:19,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 2643 transitions. [2022-11-21 16:29:19,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:29:19,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 2643 transitions. [2022-11-21 16:29:19,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 56.234042553191486) internal successors, (2643), 47 states have internal predecessors, (2643), 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 16:29:19,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 133.0) internal successors, (6384), 48 states have internal predecessors, (6384), 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 16:29:19,094 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 133.0) internal successors, (6384), 48 states have internal predecessors, (6384), 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 16:29:19,094 INFO L175 Difference]: Start difference. First operand has 172 places, 155 transitions, 448 flow. Second operand 47 states and 2643 transitions. [2022-11-21 16:29:19,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 193 transitions, 820 flow [2022-11-21 16:29:19,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 193 transitions, 752 flow, removed 0 selfloop flow, removed 27 redundant places. [2022-11-21 16:29:19,103 INFO L231 Difference]: Finished difference. Result has 190 places, 154 transitions, 502 flow [2022-11-21 16:29:19,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=502, PETRI_PLACES=190, PETRI_TRANSITIONS=154} [2022-11-21 16:29:19,104 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 62 predicate places. [2022-11-21 16:29:19,105 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 154 transitions, 502 flow [2022-11-21 16:29:19,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 55.172413793103445) internal successors, (1600), 29 states have internal predecessors, (1600), 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 16:29:19,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:29:19,106 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, 1, 1, 1, 1] [2022-11-21 16:29:19,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:29:19,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:29:19,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:29:19,108 INFO L85 PathProgramCache]: Analyzing trace with hash -462755130, now seen corresponding path program 1 times [2022-11-21 16:29:19,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:29:19,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474677406] [2022-11-21 16:29:19,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:29:19,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:29:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:29:22,122 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 16:29:22,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:29:22,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474677406] [2022-11-21 16:29:22,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474677406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:29:22,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:29:22,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-21 16:29:22,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166083165] [2022-11-21 16:29:22,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:29:22,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-21 16:29:22,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:29:22,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-21 16:29:22,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-11-21 16:29:22,129 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 133 [2022-11-21 16:29:22,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 154 transitions, 502 flow. Second operand has 28 states, 28 states have (on average 54.357142857142854) internal successors, (1522), 28 states have internal predecessors, (1522), 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 16:29:22,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:29:22,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 133 [2022-11-21 16:29:22,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:29:25,219 INFO L130 PetriNetUnfolder]: 81/398 cut-off events. [2022-11-21 16:29:25,219 INFO L131 PetriNetUnfolder]: For 115/119 co-relation queries the response was YES. [2022-11-21 16:29:25,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 398 events. 81/398 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1543 event pairs, 0 based on Foata normal form. 4/402 useless extension candidates. Maximal degree in co-relation 630. Up to 45 conditions per place. [2022-11-21 16:29:25,223 INFO L137 encePairwiseOnDemand]: 97/133 looper letters, 89 selfloop transitions, 61 changer transitions 0/201 dead transitions. [2022-11-21 16:29:25,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 201 transitions, 928 flow [2022-11-21 16:29:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-21 16:29:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-21 16:29:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 2480 transitions. [2022-11-21 16:29:25,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4143692564745196 [2022-11-21 16:29:25,244 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 2480 transitions. [2022-11-21 16:29:25,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 2480 transitions. [2022-11-21 16:29:25,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:29:25,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 2480 transitions. [2022-11-21 16:29:25,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 55.111111111111114) internal successors, (2480), 45 states have internal predecessors, (2480), 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 16:29:25,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 133.0) internal successors, (6118), 46 states have internal predecessors, (6118), 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 16:29:25,272 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 133.0) internal successors, (6118), 46 states have internal predecessors, (6118), 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 16:29:25,272 INFO L175 Difference]: Start difference. First operand has 190 places, 154 transitions, 502 flow. Second operand 45 states and 2480 transitions. [2022-11-21 16:29:25,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 201 transitions, 928 flow [2022-11-21 16:29:25,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 201 transitions, 796 flow, removed 0 selfloop flow, removed 46 redundant places. [2022-11-21 16:29:25,285 INFO L231 Difference]: Finished difference. Result has 187 places, 161 transitions, 522 flow [2022-11-21 16:29:25,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=522, PETRI_PLACES=187, PETRI_TRANSITIONS=161} [2022-11-21 16:29:25,290 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 59 predicate places. [2022-11-21 16:29:25,290 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 161 transitions, 522 flow [2022-11-21 16:29:25,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 54.357142857142854) internal successors, (1522), 28 states have internal predecessors, (1522), 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 16:29:25,292 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:29:25,292 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, 1, 1, 1, 1, 1] [2022-11-21 16:29:25,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:29:25,292 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:29:25,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:29:25,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1460506819, now seen corresponding path program 1 times [2022-11-21 16:29:25,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:29:25,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612197492] [2022-11-21 16:29:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:29:25,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:29:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:29:28,297 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 16:29:28,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:29:28,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612197492] [2022-11-21 16:29:28,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612197492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:29:28,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:29:28,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-21 16:29:28,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076625392] [2022-11-21 16:29:28,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:29:28,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-21 16:29:28,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:29:28,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-21 16:29:28,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-11-21 16:29:28,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 133 [2022-11-21 16:29:28,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 161 transitions, 522 flow. Second operand has 28 states, 28 states have (on average 54.392857142857146) internal successors, (1523), 28 states have internal predecessors, (1523), 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 16:29:28,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:29:28,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 133 [2022-11-21 16:29:28,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:29:31,448 INFO L130 PetriNetUnfolder]: 73/375 cut-off events. [2022-11-21 16:29:31,448 INFO L131 PetriNetUnfolder]: For 92/94 co-relation queries the response was YES. [2022-11-21 16:29:31,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 375 events. 73/375 cut-off events. For 92/94 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1383 event pairs, 1 based on Foata normal form. 11/386 useless extension candidates. Maximal degree in co-relation 589. Up to 26 conditions per place. [2022-11-21 16:29:31,450 INFO L137 encePairwiseOnDemand]: 97/133 looper letters, 0 selfloop transitions, 0 changer transitions 203/203 dead transitions. [2022-11-21 16:29:31,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 203 transitions, 934 flow [2022-11-21 16:29:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-21 16:29:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-21 16:29:31,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 2478 transitions. [2022-11-21 16:29:31,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41403508771929826 [2022-11-21 16:29:31,459 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 2478 transitions. [2022-11-21 16:29:31,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 2478 transitions. [2022-11-21 16:29:31,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:29:31,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 2478 transitions. [2022-11-21 16:29:31,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 55.06666666666667) internal successors, (2478), 45 states have internal predecessors, (2478), 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 16:29:31,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 133.0) internal successors, (6118), 46 states have internal predecessors, (6118), 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 16:29:31,477 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 133.0) internal successors, (6118), 46 states have internal predecessors, (6118), 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 16:29:31,477 INFO L175 Difference]: Start difference. First operand has 187 places, 161 transitions, 522 flow. Second operand 45 states and 2478 transitions. [2022-11-21 16:29:31,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 203 transitions, 934 flow [2022-11-21 16:29:31,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 203 transitions, 825 flow, removed 0 selfloop flow, removed 37 redundant places. [2022-11-21 16:29:31,481 INFO L231 Difference]: Finished difference. Result has 193 places, 0 transitions, 0 flow [2022-11-21 16:29:31,482 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=0, PETRI_PLACES=193, PETRI_TRANSITIONS=0} [2022-11-21 16:29:31,483 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 65 predicate places. [2022-11-21 16:29:31,483 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 0 transitions, 0 flow [2022-11-21 16:29:31,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 54.392857142857146) internal successors, (1523), 28 states have internal predecessors, (1523), 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 16:29:31,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-11-21 16:29:31,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-21 16:29:31,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-21 16:29:31,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-21 16:29:31,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-11-21 16:29:31,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-21 16:29:31,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-11-21 16:29:31,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-21 16:29:31,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-21 16:29:31,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:29:31,490 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 16:29:31,495 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:29:31,495 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:29:31,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:29:31 BasicIcfg [2022-11-21 16:29:31,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:29:31,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:29:31,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:29:31,502 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:29:31,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:29:02" (3/4) ... [2022-11-21 16:29:31,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:29:31,512 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-21 16:29:31,516 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 16:29:31,517 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-21 16:29:31,517 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:29:31,570 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:29:31,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:29:31,572 INFO L158 Benchmark]: Toolchain (without parser) took 31029.12ms. Allocated memory was 209.7MB in the beginning and 448.8MB in the end (delta: 239.1MB). Free memory was 174.3MB in the beginning and 256.1MB in the end (delta: -81.8MB). Peak memory consumption was 158.9MB. Max. memory is 16.1GB. [2022-11-21 16:29:31,572 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:29:31,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1006.92ms. Allocated memory is still 209.7MB. Free memory was 173.8MB in the beginning and 136.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-21 16:29:31,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.49ms. Allocated memory is still 209.7MB. Free memory was 136.1MB in the beginning and 133.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:29:31,574 INFO L158 Benchmark]: Boogie Preprocessor took 36.65ms. Allocated memory is still 209.7MB. Free memory was 133.2MB in the beginning and 131.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:29:31,574 INFO L158 Benchmark]: RCFGBuilder took 712.16ms. Allocated memory is still 209.7MB. Free memory was 131.1MB in the beginning and 112.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 16:29:31,574 INFO L158 Benchmark]: TraceAbstraction took 29117.87ms. Allocated memory was 209.7MB in the beginning and 448.8MB in the end (delta: 239.1MB). Free memory was 112.2MB in the beginning and 259.3MB in the end (delta: -147.0MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2022-11-21 16:29:31,575 INFO L158 Benchmark]: Witness Printer took 69.77ms. Allocated memory is still 448.8MB. Free memory was 259.3MB in the beginning and 256.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:29:31,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1006.92ms. Allocated memory is still 209.7MB. Free memory was 173.8MB in the beginning and 136.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.49ms. Allocated memory is still 209.7MB. Free memory was 136.1MB in the beginning and 133.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.65ms. Allocated memory is still 209.7MB. Free memory was 133.2MB in the beginning and 131.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 712.16ms. Allocated memory is still 209.7MB. Free memory was 131.1MB in the beginning and 112.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 29117.87ms. Allocated memory was 209.7MB in the beginning and 448.8MB in the end (delta: 239.1MB). Free memory was 112.2MB in the beginning and 259.3MB in the end (delta: -147.0MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. * Witness Printer took 69.77ms. Allocated memory is still 448.8MB. Free memory was 259.3MB in the beginning and 256.1MB 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: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 167 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1409 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1409 mSDsluCounter, 1875 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1687 mSDsCounter, 235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4998 IncrementalHoareTripleChecker+Invalid, 5233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 235 mSolverCounterUnsat, 188 mSDtfsCounter, 4998 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 279 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4550 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=522occurred in iteration=3, InterpolantAutomatonStates: 184, 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, 0.3s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 9216 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:29:31,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6018fb-ffb9-457c-a08e-429e13103991/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