./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- 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-8393723 [2022-11-18 20:13:57,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:13:57,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:13:57,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:13:57,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:13:57,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:13:57,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:13:57,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:13:57,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:13:57,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:13:57,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:13:57,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:13:57,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:13:57,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:13:57,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:13:57,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:13:57,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:13:57,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:13:57,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:13:57,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:13:57,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:13:57,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:13:57,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:13:57,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:13:57,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:13:57,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:13:57,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:13:57,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:13:57,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:13:57,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:13:57,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:13:57,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:13:57,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:13:57,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:13:57,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:13:57,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:13:57,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:13:57,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:13:57,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:13:57,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:13:57,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:13:57,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:13:57,403 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:13:57,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:13:57,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:13:57,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:13:57,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:13:57,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:13:57,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:13:57,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:13:57,407 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:13:57,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:13:57,409 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:13:57,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:13:57,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:13:57,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:13:57,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:13:57,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:13:57,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:13:57,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:13:57,410 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:13:57,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:13:57,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:13:57,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:13:57,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:13:57,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:13:57,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:13:57,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:13:57,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:13:57,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:13:57,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:13:57,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:13:57,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:13:57,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:13:57,416 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:13:57,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:13:57,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:13:57,416 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_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2022-11-18 20:13:57,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:13:57,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:13:57,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:13:57,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:13:57,739 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:13:57,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-18 20:13:57,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/data/b26f68a20/f79200dc51d442688d0df16ecd7c245b/FLAG10dfdda80 [2022-11-18 20:13:58,486 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:13:58,488 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-18 20:13:58,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/data/b26f68a20/f79200dc51d442688d0df16ecd7c245b/FLAG10dfdda80 [2022-11-18 20:13:58,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/data/b26f68a20/f79200dc51d442688d0df16ecd7c245b [2022-11-18 20:13:58,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:13:58,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:13:58,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:13:58,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:13:58,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:13:58,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:13:58" (1/1) ... [2022-11-18 20:13:58,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd428a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:58, skipping insertion in model container [2022-11-18 20:13:58,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:13:58" (1/1) ... [2022-11-18 20:13:58,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:13:58,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:13:59,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:13:59,397 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:13:59,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:13:59,513 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:13:59,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59 WrapperNode [2022-11-18 20:13:59,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:13:59,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:13:59,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:13:59,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:13:59,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,589 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2022-11-18 20:13:59,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:13:59,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:13:59,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:13:59,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:13:59,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,630 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:13:59,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:13:59,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:13:59,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:13:59,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (1/1) ... [2022-11-18 20:13:59,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:13:59,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:13:59,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:13:59,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:13:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:13:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:13:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:13:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:13:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:13:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:13:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:13:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:13:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:13:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:13:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:13:59,730 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:13:59,904 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:13:59,906 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:14:00,159 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:14:00,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:14:00,167 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:14:00,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:00 BoogieIcfgContainer [2022-11-18 20:14:00,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:14:00,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:14:00,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:14:00,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:14:00,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:13:58" (1/3) ... [2022-11-18 20:14:00,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ed6b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:14:00, skipping insertion in model container [2022-11-18 20:14:00,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:59" (2/3) ... [2022-11-18 20:14:00,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ed6b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:14:00, skipping insertion in model container [2022-11-18 20:14:00,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:00" (3/3) ... [2022-11-18 20:14:00,179 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2022-11-18 20:14:00,189 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:14:00,201 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:14:00,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:14:00,202 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:14:00,277 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:14:00,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 80 transitions, 168 flow [2022-11-18 20:14:00,355 INFO L130 PetriNetUnfolder]: 0/79 cut-off events. [2022-11-18 20:14:00,356 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:14:00,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 0/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-18 20:14:00,359 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 80 transitions, 168 flow [2022-11-18 20:14:00,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2022-11-18 20:14:00,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:14:00,381 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;@59d9a6b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:14:00,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 20:14:00,397 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-18 20:14:00,398 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:14:00,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:00,399 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] [2022-11-18 20:14:00,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:00,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash 787053596, now seen corresponding path program 1 times [2022-11-18 20:14:00,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:00,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41180927] [2022-11-18 20:14:00,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:00,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:01,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:01,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41180927] [2022-11-18 20:14:01,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41180927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:01,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:01,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:14:01,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224529355] [2022-11-18 20:14:01,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:01,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:14:01,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:01,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:14:01,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:14:01,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 80 [2022-11-18 20:14:01,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 145 flow. Second operand has 10 states, 10 states have (on average 48.3) internal successors, (483), 10 states have internal predecessors, (483), 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) [2022-11-18 20:14:01,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:01,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 80 [2022-11-18 20:14:01,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:01,605 INFO L130 PetriNetUnfolder]: 30/173 cut-off events. [2022-11-18 20:14:01,606 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:14:01,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 173 events. 30/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 631 event pairs, 7 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 217. Up to 42 conditions per place. [2022-11-18 20:14:01,610 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 31 selfloop transitions, 12 changer transitions 10/93 dead transitions. [2022-11-18 20:14:01,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 93 transitions, 295 flow [2022-11-18 20:14:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:14:01,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:14:01,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 517 transitions. [2022-11-18 20:14:01,627 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.64625 [2022-11-18 20:14:01,628 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 517 transitions. [2022-11-18 20:14:01,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 517 transitions. [2022-11-18 20:14:01,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:01,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 517 transitions. [2022-11-18 20:14:01,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 51.7) internal successors, (517), 10 states have internal predecessors, (517), 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) [2022-11-18 20:14:01,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 80.0) internal successors, (880), 11 states have internal predecessors, (880), 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) [2022-11-18 20:14:01,646 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 80.0) internal successors, (880), 11 states have internal predecessors, (880), 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) [2022-11-18 20:14:01,648 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 145 flow. Second operand 10 states and 517 transitions. [2022-11-18 20:14:01,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 93 transitions, 295 flow [2022-11-18 20:14:01,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 93 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:14:01,660 INFO L231 Difference]: Finished difference. Result has 88 places, 76 transitions, 205 flow [2022-11-18 20:14:01,663 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=205, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2022-11-18 20:14:01,666 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 13 predicate places. [2022-11-18 20:14:01,666 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 205 flow [2022-11-18 20:14:01,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 48.3) internal successors, (483), 10 states have internal predecessors, (483), 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) [2022-11-18 20:14:01,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:01,667 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] [2022-11-18 20:14:01,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:14:01,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:01,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:01,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1753110401, now seen corresponding path program 1 times [2022-11-18 20:14:01,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:01,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129266729] [2022-11-18 20:14:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:01,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:02,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:02,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129266729] [2022-11-18 20:14:02,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129266729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:02,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:02,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:14:02,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880459745] [2022-11-18 20:14:02,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:02,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:14:02,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:02,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:14:02,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:14:02,144 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-18 20:14:02,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 44.7) internal successors, (447), 10 states have internal predecessors, (447), 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) [2022-11-18 20:14:02,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:02,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-18 20:14:02,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:02,450 INFO L130 PetriNetUnfolder]: 15/153 cut-off events. [2022-11-18 20:14:02,450 INFO L131 PetriNetUnfolder]: For 49/52 co-relation queries the response was YES. [2022-11-18 20:14:02,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 153 events. 15/153 cut-off events. For 49/52 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 527 event pairs, 1 based on Foata normal form. 3/152 useless extension candidates. Maximal degree in co-relation 231. Up to 23 conditions per place. [2022-11-18 20:14:02,460 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 34 selfloop transitions, 14 changer transitions 5/91 dead transitions. [2022-11-18 20:14:02,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 91 transitions, 367 flow [2022-11-18 20:14:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:14:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:14:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 475 transitions. [2022-11-18 20:14:02,465 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.59375 [2022-11-18 20:14:02,465 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 475 transitions. [2022-11-18 20:14:02,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 475 transitions. [2022-11-18 20:14:02,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:02,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 475 transitions. [2022-11-18 20:14:02,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 47.5) internal successors, (475), 10 states have internal predecessors, (475), 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) [2022-11-18 20:14:02,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 80.0) internal successors, (880), 11 states have internal predecessors, (880), 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) [2022-11-18 20:14:02,475 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 80.0) internal successors, (880), 11 states have internal predecessors, (880), 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) [2022-11-18 20:14:02,475 INFO L175 Difference]: Start difference. First operand has 88 places, 76 transitions, 205 flow. Second operand 10 states and 475 transitions. [2022-11-18 20:14:02,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 91 transitions, 367 flow [2022-11-18 20:14:02,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 91 transitions, 342 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-18 20:14:02,484 INFO L231 Difference]: Finished difference. Result has 96 places, 81 transitions, 259 flow [2022-11-18 20:14:02,484 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=259, PETRI_PLACES=96, PETRI_TRANSITIONS=81} [2022-11-18 20:14:02,485 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 21 predicate places. [2022-11-18 20:14:02,485 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 81 transitions, 259 flow [2022-11-18 20:14:02,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 44.7) internal successors, (447), 10 states have internal predecessors, (447), 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) [2022-11-18 20:14:02,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:02,486 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] [2022-11-18 20:14:02,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:14:02,487 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:02,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1118963440, now seen corresponding path program 1 times [2022-11-18 20:14:02,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:02,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082657798] [2022-11-18 20:14:02,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:02,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:03,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:03,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:03,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082657798] [2022-11-18 20:14:03,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082657798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:03,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:03,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:03,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229242963] [2022-11-18 20:14:03,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:03,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:03,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:03,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:03,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:03,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-18 20:14:03,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 81 transitions, 259 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:03,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:03,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-18 20:14:03,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:03,883 INFO L130 PetriNetUnfolder]: 46/255 cut-off events. [2022-11-18 20:14:03,883 INFO L131 PetriNetUnfolder]: For 191/193 co-relation queries the response was YES. [2022-11-18 20:14:03,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 255 events. 46/255 cut-off events. For 191/193 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1190 event pairs, 3 based on Foata normal form. 4/259 useless extension candidates. Maximal degree in co-relation 511. Up to 35 conditions per place. [2022-11-18 20:14:03,888 INFO L137 encePairwiseOnDemand]: 66/80 looper letters, 53 selfloop transitions, 15 changer transitions 9/109 dead transitions. [2022-11-18 20:14:03,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 109 transitions, 538 flow [2022-11-18 20:14:03,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:14:03,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 20:14:03,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 566 transitions. [2022-11-18 20:14:03,891 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5442307692307692 [2022-11-18 20:14:03,892 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 566 transitions. [2022-11-18 20:14:03,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 566 transitions. [2022-11-18 20:14:03,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:03,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 566 transitions. [2022-11-18 20:14:03,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 43.53846153846154) internal successors, (566), 13 states have internal predecessors, (566), 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) [2022-11-18 20:14:03,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 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) [2022-11-18 20:14:03,898 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 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) [2022-11-18 20:14:03,898 INFO L175 Difference]: Start difference. First operand has 96 places, 81 transitions, 259 flow. Second operand 13 states and 566 transitions. [2022-11-18 20:14:03,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 109 transitions, 538 flow [2022-11-18 20:14:03,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 508 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-18 20:14:03,907 INFO L231 Difference]: Finished difference. Result has 107 places, 84 transitions, 309 flow [2022-11-18 20:14:03,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=309, PETRI_PLACES=107, PETRI_TRANSITIONS=84} [2022-11-18 20:14:03,910 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 32 predicate places. [2022-11-18 20:14:03,910 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 84 transitions, 309 flow [2022-11-18 20:14:03,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:03,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:03,911 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] [2022-11-18 20:14:03,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:14:03,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:03,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:03,913 INFO L85 PathProgramCache]: Analyzing trace with hash 746888070, now seen corresponding path program 2 times [2022-11-18 20:14:03,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:03,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556174480] [2022-11-18 20:14:03,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:03,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:04,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:04,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556174480] [2022-11-18 20:14:04,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556174480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:04,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:04,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:04,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184642961] [2022-11-18 20:14:04,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:04,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:04,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:04,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:04,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:04,460 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-18 20:14:04,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 84 transitions, 309 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:04,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:04,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-18 20:14:04,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:05,317 INFO L130 PetriNetUnfolder]: 55/289 cut-off events. [2022-11-18 20:14:05,317 INFO L131 PetriNetUnfolder]: For 420/422 co-relation queries the response was YES. [2022-11-18 20:14:05,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 289 events. 55/289 cut-off events. For 420/422 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1447 event pairs, 2 based on Foata normal form. 4/293 useless extension candidates. Maximal degree in co-relation 644. Up to 35 conditions per place. [2022-11-18 20:14:05,320 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 54 selfloop transitions, 27 changer transitions 9/122 dead transitions. [2022-11-18 20:14:05,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 122 transitions, 677 flow [2022-11-18 20:14:05,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:14:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 20:14:05,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 731 transitions. [2022-11-18 20:14:05,323 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5375 [2022-11-18 20:14:05,324 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 731 transitions. [2022-11-18 20:14:05,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 731 transitions. [2022-11-18 20:14:05,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:05,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 731 transitions. [2022-11-18 20:14:05,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 43.0) internal successors, (731), 17 states have internal predecessors, (731), 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) [2022-11-18 20:14:05,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 80.0) internal successors, (1440), 18 states have internal predecessors, (1440), 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) [2022-11-18 20:14:05,330 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 80.0) internal successors, (1440), 18 states have internal predecessors, (1440), 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) [2022-11-18 20:14:05,331 INFO L175 Difference]: Start difference. First operand has 107 places, 84 transitions, 309 flow. Second operand 17 states and 731 transitions. [2022-11-18 20:14:05,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 122 transitions, 677 flow [2022-11-18 20:14:05,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 122 transitions, 632 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-11-18 20:14:05,337 INFO L231 Difference]: Finished difference. Result has 119 places, 92 transitions, 424 flow [2022-11-18 20:14:05,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=424, PETRI_PLACES=119, PETRI_TRANSITIONS=92} [2022-11-18 20:14:05,339 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 44 predicate places. [2022-11-18 20:14:05,339 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 92 transitions, 424 flow [2022-11-18 20:14:05,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:05,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:05,340 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] [2022-11-18 20:14:05,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:14:05,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:05,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1981086210, now seen corresponding path program 1 times [2022-11-18 20:14:05,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:05,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740025775] [2022-11-18 20:14:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:05,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:05,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:05,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:05,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740025775] [2022-11-18 20:14:05,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740025775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:05,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:05,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:05,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179634372] [2022-11-18 20:14:05,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:05,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:05,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:05,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:05,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:05,741 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-18 20:14:05,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 92 transitions, 424 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:05,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:05,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-18 20:14:05,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:06,862 INFO L130 PetriNetUnfolder]: 84/370 cut-off events. [2022-11-18 20:14:06,863 INFO L131 PetriNetUnfolder]: For 1097/1101 co-relation queries the response was YES. [2022-11-18 20:14:06,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 370 events. 84/370 cut-off events. For 1097/1101 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2052 event pairs, 8 based on Foata normal form. 8/376 useless extension candidates. Maximal degree in co-relation 1082. Up to 53 conditions per place. [2022-11-18 20:14:06,866 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 60 selfloop transitions, 33 changer transitions 20/150 dead transitions. [2022-11-18 20:14:06,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 150 transitions, 1036 flow [2022-11-18 20:14:06,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:14:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 20:14:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 943 transitions. [2022-11-18 20:14:06,870 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.589375 [2022-11-18 20:14:06,870 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 943 transitions. [2022-11-18 20:14:06,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 943 transitions. [2022-11-18 20:14:06,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:06,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 943 transitions. [2022-11-18 20:14:06,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 47.15) internal successors, (943), 20 states have internal predecessors, (943), 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) [2022-11-18 20:14:06,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 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) [2022-11-18 20:14:06,878 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 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) [2022-11-18 20:14:06,879 INFO L175 Difference]: Start difference. First operand has 119 places, 92 transitions, 424 flow. Second operand 20 states and 943 transitions. [2022-11-18 20:14:06,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 150 transitions, 1036 flow [2022-11-18 20:14:06,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 150 transitions, 922 flow, removed 7 selfloop flow, removed 12 redundant places. [2022-11-18 20:14:06,887 INFO L231 Difference]: Finished difference. Result has 129 places, 103 transitions, 547 flow [2022-11-18 20:14:06,887 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=547, PETRI_PLACES=129, PETRI_TRANSITIONS=103} [2022-11-18 20:14:06,888 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 54 predicate places. [2022-11-18 20:14:06,888 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 103 transitions, 547 flow [2022-11-18 20:14:06,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:06,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:06,889 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] [2022-11-18 20:14:06,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:14:06,890 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:06,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:06,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1732789092, now seen corresponding path program 3 times [2022-11-18 20:14:06,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:06,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976309103] [2022-11-18 20:14:06,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:06,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:07,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:07,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976309103] [2022-11-18 20:14:07,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976309103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:07,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:07,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:07,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813756051] [2022-11-18 20:14:07,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:07,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:07,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:07,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:07,357 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-18 20:14:07,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 103 transitions, 547 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:07,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:07,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-18 20:14:07,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:08,466 INFO L130 PetriNetUnfolder]: 74/343 cut-off events. [2022-11-18 20:14:08,467 INFO L131 PetriNetUnfolder]: For 1127/1131 co-relation queries the response was YES. [2022-11-18 20:14:08,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 343 events. 74/343 cut-off events. For 1127/1131 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1828 event pairs, 6 based on Foata normal form. 6/347 useless extension candidates. Maximal degree in co-relation 1050. Up to 36 conditions per place. [2022-11-18 20:14:08,470 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 65 selfloop transitions, 40 changer transitions 13/150 dead transitions. [2022-11-18 20:14:08,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 1072 flow [2022-11-18 20:14:08,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:14:08,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 20:14:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 864 transitions. [2022-11-18 20:14:08,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.54 [2022-11-18 20:14:08,474 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 864 transitions. [2022-11-18 20:14:08,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 864 transitions. [2022-11-18 20:14:08,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:08,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 864 transitions. [2022-11-18 20:14:08,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 43.2) internal successors, (864), 20 states have internal predecessors, (864), 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) [2022-11-18 20:14:08,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 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) [2022-11-18 20:14:08,482 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 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) [2022-11-18 20:14:08,483 INFO L175 Difference]: Start difference. First operand has 129 places, 103 transitions, 547 flow. Second operand 20 states and 864 transitions. [2022-11-18 20:14:08,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 1072 flow [2022-11-18 20:14:08,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 150 transitions, 930 flow, removed 16 selfloop flow, removed 14 redundant places. [2022-11-18 20:14:08,493 INFO L231 Difference]: Finished difference. Result has 136 places, 110 transitions, 644 flow [2022-11-18 20:14:08,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=644, PETRI_PLACES=136, PETRI_TRANSITIONS=110} [2022-11-18 20:14:08,496 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 61 predicate places. [2022-11-18 20:14:08,497 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 110 transitions, 644 flow [2022-11-18 20:14:08,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:08,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:08,498 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] [2022-11-18 20:14:08,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:14:08,498 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash -235684712, now seen corresponding path program 2 times [2022-11-18 20:14:08,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:08,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341717916] [2022-11-18 20:14:08,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:08,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:08,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:08,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341717916] [2022-11-18 20:14:08,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341717916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:08,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:08,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:08,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226310355] [2022-11-18 20:14:08,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:08,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:08,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:08,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:08,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:08,960 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-18 20:14:08,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 110 transitions, 644 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:08,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:08,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-18 20:14:08,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:10,197 INFO L130 PetriNetUnfolder]: 78/365 cut-off events. [2022-11-18 20:14:10,198 INFO L131 PetriNetUnfolder]: For 1202/1208 co-relation queries the response was YES. [2022-11-18 20:14:10,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 365 events. 78/365 cut-off events. For 1202/1208 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2018 event pairs, 15 based on Foata normal form. 10/371 useless extension candidates. Maximal degree in co-relation 1094. Up to 42 conditions per place. [2022-11-18 20:14:10,202 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 63 selfloop transitions, 39 changer transitions 19/158 dead transitions. [2022-11-18 20:14:10,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 158 transitions, 1142 flow [2022-11-18 20:14:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:14:10,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-18 20:14:10,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1029 transitions. [2022-11-18 20:14:10,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.584659090909091 [2022-11-18 20:14:10,207 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1029 transitions. [2022-11-18 20:14:10,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1029 transitions. [2022-11-18 20:14:10,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:10,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1029 transitions. [2022-11-18 20:14:10,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 46.77272727272727) internal successors, (1029), 22 states have internal predecessors, (1029), 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) [2022-11-18 20:14:10,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 80.0) internal successors, (1840), 23 states have internal predecessors, (1840), 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) [2022-11-18 20:14:10,215 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 80.0) internal successors, (1840), 23 states have internal predecessors, (1840), 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) [2022-11-18 20:14:10,215 INFO L175 Difference]: Start difference. First operand has 136 places, 110 transitions, 644 flow. Second operand 22 states and 1029 transitions. [2022-11-18 20:14:10,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 158 transitions, 1142 flow [2022-11-18 20:14:10,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 158 transitions, 996 flow, removed 24 selfloop flow, removed 14 redundant places. [2022-11-18 20:14:10,224 INFO L231 Difference]: Finished difference. Result has 145 places, 111 transitions, 648 flow [2022-11-18 20:14:10,225 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=648, PETRI_PLACES=145, PETRI_TRANSITIONS=111} [2022-11-18 20:14:10,225 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 70 predicate places. [2022-11-18 20:14:10,226 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 111 transitions, 648 flow [2022-11-18 20:14:10,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:10,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:10,226 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] [2022-11-18 20:14:10,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:14:10,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:10,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:10,228 INFO L85 PathProgramCache]: Analyzing trace with hash -604468518, now seen corresponding path program 4 times [2022-11-18 20:14:10,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:10,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721469183] [2022-11-18 20:14:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:10,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:10,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:10,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721469183] [2022-11-18 20:14:10,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721469183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:10,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:10,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:10,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159226477] [2022-11-18 20:14:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:10,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:10,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:10,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:10,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:10,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-18 20:14:10,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 111 transitions, 648 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:10,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:10,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-18 20:14:10,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:11,760 INFO L130 PetriNetUnfolder]: 69/372 cut-off events. [2022-11-18 20:14:11,760 INFO L131 PetriNetUnfolder]: For 1030/1036 co-relation queries the response was YES. [2022-11-18 20:14:11,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 372 events. 69/372 cut-off events. For 1030/1036 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2116 event pairs, 20 based on Foata normal form. 4/374 useless extension candidates. Maximal degree in co-relation 1059. Up to 82 conditions per place. [2022-11-18 20:14:11,763 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 62 selfloop transitions, 26 changer transitions 26/146 dead transitions. [2022-11-18 20:14:11,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 146 transitions, 1006 flow [2022-11-18 20:14:11,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:14:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 20:14:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 857 transitions. [2022-11-18 20:14:11,766 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.535625 [2022-11-18 20:14:11,766 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 857 transitions. [2022-11-18 20:14:11,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 857 transitions. [2022-11-18 20:14:11,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:11,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 857 transitions. [2022-11-18 20:14:11,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 42.85) internal successors, (857), 20 states have internal predecessors, (857), 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) [2022-11-18 20:14:11,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 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) [2022-11-18 20:14:11,773 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 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) [2022-11-18 20:14:11,773 INFO L175 Difference]: Start difference. First operand has 145 places, 111 transitions, 648 flow. Second operand 20 states and 857 transitions. [2022-11-18 20:14:11,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 146 transitions, 1006 flow [2022-11-18 20:14:11,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 146 transitions, 917 flow, removed 8 selfloop flow, removed 17 redundant places. [2022-11-18 20:14:11,782 INFO L231 Difference]: Finished difference. Result has 151 places, 104 transitions, 575 flow [2022-11-18 20:14:11,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=575, PETRI_PLACES=151, PETRI_TRANSITIONS=104} [2022-11-18 20:14:11,783 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 76 predicate places. [2022-11-18 20:14:11,783 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 104 transitions, 575 flow [2022-11-18 20:14:11,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:11,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:11,784 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] [2022-11-18 20:14:11,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:14:11,784 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:11,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:11,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1921533306, now seen corresponding path program 5 times [2022-11-18 20:14:11,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:11,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121302098] [2022-11-18 20:14:11,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:11,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:12,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:12,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121302098] [2022-11-18 20:14:12,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121302098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:12,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:12,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:12,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583601042] [2022-11-18 20:14:12,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:12,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:12,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:12,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:12,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:12,177 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-18 20:14:12,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 104 transitions, 575 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:12,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:12,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-18 20:14:12,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:12,863 INFO L130 PetriNetUnfolder]: 52/296 cut-off events. [2022-11-18 20:14:12,863 INFO L131 PetriNetUnfolder]: For 745/751 co-relation queries the response was YES. [2022-11-18 20:14:12,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 296 events. 52/296 cut-off events. For 745/751 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1477 event pairs, 20 based on Foata normal form. 4/298 useless extension candidates. Maximal degree in co-relation 809. Up to 82 conditions per place. [2022-11-18 20:14:12,866 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 55 selfloop transitions, 22 changer transitions 11/120 dead transitions. [2022-11-18 20:14:12,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 120 transitions, 789 flow [2022-11-18 20:14:12,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:14:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 20:14:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 643 transitions. [2022-11-18 20:14:12,869 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5358333333333334 [2022-11-18 20:14:12,869 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 643 transitions. [2022-11-18 20:14:12,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 643 transitions. [2022-11-18 20:14:12,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:12,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 643 transitions. [2022-11-18 20:14:12,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 42.86666666666667) internal successors, (643), 15 states have internal predecessors, (643), 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) [2022-11-18 20:14:12,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 80.0) internal successors, (1280), 16 states have internal predecessors, (1280), 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) [2022-11-18 20:14:12,875 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 80.0) internal successors, (1280), 16 states have internal predecessors, (1280), 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) [2022-11-18 20:14:12,875 INFO L175 Difference]: Start difference. First operand has 151 places, 104 transitions, 575 flow. Second operand 15 states and 643 transitions. [2022-11-18 20:14:12,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 120 transitions, 789 flow [2022-11-18 20:14:12,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 120 transitions, 709 flow, removed 9 selfloop flow, removed 21 redundant places. [2022-11-18 20:14:12,883 INFO L231 Difference]: Finished difference. Result has 137 places, 99 transitions, 502 flow [2022-11-18 20:14:12,883 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=502, PETRI_PLACES=137, PETRI_TRANSITIONS=99} [2022-11-18 20:14:12,884 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 62 predicate places. [2022-11-18 20:14:12,884 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 99 transitions, 502 flow [2022-11-18 20:14:12,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:12,885 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:12,885 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] [2022-11-18 20:14:12,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:14:12,886 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:12,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:12,886 INFO L85 PathProgramCache]: Analyzing trace with hash 836739830, now seen corresponding path program 3 times [2022-11-18 20:14:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:12,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462999444] [2022-11-18 20:14:12,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:12,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:13,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:13,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462999444] [2022-11-18 20:14:13,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462999444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:13,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:13,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57131931] [2022-11-18 20:14:13,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:13,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:13,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:13,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:13,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:13,309 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-18 20:14:13,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 99 transitions, 502 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:13,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:13,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-18 20:14:13,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:13,953 INFO L130 PetriNetUnfolder]: 47/255 cut-off events. [2022-11-18 20:14:13,953 INFO L131 PetriNetUnfolder]: For 543/545 co-relation queries the response was YES. [2022-11-18 20:14:13,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 255 events. 47/255 cut-off events. For 543/545 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1158 event pairs, 8 based on Foata normal form. 6/258 useless extension candidates. Maximal degree in co-relation 677. Up to 42 conditions per place. [2022-11-18 20:14:13,955 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 46 selfloop transitions, 23 changer transitions 16/121 dead transitions. [2022-11-18 20:14:13,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 121 transitions, 760 flow [2022-11-18 20:14:13,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:14:13,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 20:14:13,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 700 transitions. [2022-11-18 20:14:13,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-11-18 20:14:13,960 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 700 transitions. [2022-11-18 20:14:13,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 700 transitions. [2022-11-18 20:14:13,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:13,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 700 transitions. [2022-11-18 20:14:13,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 46.666666666666664) internal successors, (700), 15 states have internal predecessors, (700), 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) [2022-11-18 20:14:13,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 80.0) internal successors, (1280), 16 states have internal predecessors, (1280), 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) [2022-11-18 20:14:13,965 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 80.0) internal successors, (1280), 16 states have internal predecessors, (1280), 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) [2022-11-18 20:14:13,966 INFO L175 Difference]: Start difference. First operand has 137 places, 99 transitions, 502 flow. Second operand 15 states and 700 transitions. [2022-11-18 20:14:13,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 121 transitions, 760 flow [2022-11-18 20:14:13,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 121 transitions, 704 flow, removed 6 selfloop flow, removed 15 redundant places. [2022-11-18 20:14:13,972 INFO L231 Difference]: Finished difference. Result has 130 places, 93 transitions, 441 flow [2022-11-18 20:14:13,972 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=441, PETRI_PLACES=130, PETRI_TRANSITIONS=93} [2022-11-18 20:14:13,973 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 55 predicate places. [2022-11-18 20:14:13,973 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 93 transitions, 441 flow [2022-11-18 20:14:13,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:13,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:13,974 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] [2022-11-18 20:14:13,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:14:13,974 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:13,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:13,975 INFO L85 PathProgramCache]: Analyzing trace with hash -443828064, now seen corresponding path program 6 times [2022-11-18 20:14:13,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:13,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84544201] [2022-11-18 20:14:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:13,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:14,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:14,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84544201] [2022-11-18 20:14:14,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84544201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:14,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:14,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:14,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139042500] [2022-11-18 20:14:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:14,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:14,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:14,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:14,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:14,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-18 20:14:14,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 93 transitions, 441 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:14,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:14,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-18 20:14:14,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:15,470 INFO L130 PetriNetUnfolder]: 47/231 cut-off events. [2022-11-18 20:14:15,470 INFO L131 PetriNetUnfolder]: For 535/537 co-relation queries the response was YES. [2022-11-18 20:14:15,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 231 events. 47/231 cut-off events. For 535/537 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 982 event pairs, 0 based on Foata normal form. 4/235 useless extension candidates. Maximal degree in co-relation 643. Up to 24 conditions per place. [2022-11-18 20:14:15,472 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 41 selfloop transitions, 30 changer transitions 18/115 dead transitions. [2022-11-18 20:14:15,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 115 transitions, 693 flow [2022-11-18 20:14:15,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:14:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-18 20:14:15,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 915 transitions. [2022-11-18 20:14:15,475 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5198863636363636 [2022-11-18 20:14:15,476 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 915 transitions. [2022-11-18 20:14:15,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 915 transitions. [2022-11-18 20:14:15,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:15,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 915 transitions. [2022-11-18 20:14:15,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 41.59090909090909) internal successors, (915), 22 states have internal predecessors, (915), 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) [2022-11-18 20:14:15,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 80.0) internal successors, (1840), 23 states have internal predecessors, (1840), 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) [2022-11-18 20:14:15,483 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 80.0) internal successors, (1840), 23 states have internal predecessors, (1840), 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) [2022-11-18 20:14:15,483 INFO L175 Difference]: Start difference. First operand has 130 places, 93 transitions, 441 flow. Second operand 22 states and 915 transitions. [2022-11-18 20:14:15,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 115 transitions, 693 flow [2022-11-18 20:14:15,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 115 transitions, 565 flow, removed 9 selfloop flow, removed 22 redundant places. [2022-11-18 20:14:15,488 INFO L231 Difference]: Finished difference. Result has 118 places, 82 transitions, 354 flow [2022-11-18 20:14:15,489 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=354, PETRI_PLACES=118, PETRI_TRANSITIONS=82} [2022-11-18 20:14:15,489 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 43 predicate places. [2022-11-18 20:14:15,490 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 82 transitions, 354 flow [2022-11-18 20:14:15,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 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) [2022-11-18 20:14:15,490 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:15,491 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] [2022-11-18 20:14:15,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:14:15,491 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:15,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:15,492 INFO L85 PathProgramCache]: Analyzing trace with hash -526518142, now seen corresponding path program 4 times [2022-11-18 20:14:15,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:15,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138104617] [2022-11-18 20:14:15,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:15,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:15,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:15,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138104617] [2022-11-18 20:14:15,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138104617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:15,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:15,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:15,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362728942] [2022-11-18 20:14:15,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:15,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:15,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:15,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:15,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:15,919 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-18 20:14:15,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 82 transitions, 354 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:15,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:15,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-18 20:14:15,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:16,595 INFO L130 PetriNetUnfolder]: 29/186 cut-off events. [2022-11-18 20:14:16,596 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2022-11-18 20:14:16,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 186 events. 29/186 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 681 event pairs, 10 based on Foata normal form. 4/187 useless extension candidates. Maximal degree in co-relation 411. Up to 27 conditions per place. [2022-11-18 20:14:16,597 INFO L137 encePairwiseOnDemand]: 67/80 looper letters, 36 selfloop transitions, 17 changer transitions 14/97 dead transitions. [2022-11-18 20:14:16,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 97 transitions, 528 flow [2022-11-18 20:14:16,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:14:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-18 20:14:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 736 transitions. [2022-11-18 20:14:16,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.575 [2022-11-18 20:14:16,600 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 736 transitions. [2022-11-18 20:14:16,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 736 transitions. [2022-11-18 20:14:16,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:16,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 736 transitions. [2022-11-18 20:14:16,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 46.0) internal successors, (736), 16 states have internal predecessors, (736), 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) [2022-11-18 20:14:16,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 80.0) internal successors, (1360), 17 states have internal predecessors, (1360), 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) [2022-11-18 20:14:16,606 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 80.0) internal successors, (1360), 17 states have internal predecessors, (1360), 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) [2022-11-18 20:14:16,606 INFO L175 Difference]: Start difference. First operand has 118 places, 82 transitions, 354 flow. Second operand 16 states and 736 transitions. [2022-11-18 20:14:16,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 97 transitions, 528 flow [2022-11-18 20:14:16,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 97 transitions, 423 flow, removed 8 selfloop flow, removed 22 redundant places. [2022-11-18 20:14:16,610 INFO L231 Difference]: Finished difference. Result has 103 places, 75 transitions, 258 flow [2022-11-18 20:14:16,611 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=258, PETRI_PLACES=103, PETRI_TRANSITIONS=75} [2022-11-18 20:14:16,611 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 28 predicate places. [2022-11-18 20:14:16,611 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 75 transitions, 258 flow [2022-11-18 20:14:16,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:16,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:16,612 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] [2022-11-18 20:14:16,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:14:16,613 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:16,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:16,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1399634370, now seen corresponding path program 5 times [2022-11-18 20:14:16,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:16,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144798229] [2022-11-18 20:14:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:16,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:16,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:16,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144798229] [2022-11-18 20:14:16,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144798229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:16,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:16,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:16,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837230172] [2022-11-18 20:14:16,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:16,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:16,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:16,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:16,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:16,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-18 20:14:16,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 75 transitions, 258 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:16,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:16,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-18 20:14:16,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:17,448 INFO L130 PetriNetUnfolder]: 18/134 cut-off events. [2022-11-18 20:14:17,448 INFO L131 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2022-11-18 20:14:17,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 134 events. 18/134 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 335 event pairs, 5 based on Foata normal form. 4/136 useless extension candidates. Maximal degree in co-relation 270. Up to 27 conditions per place. [2022-11-18 20:14:17,450 INFO L137 encePairwiseOnDemand]: 67/80 looper letters, 28 selfloop transitions, 13 changer transitions 11/82 dead transitions. [2022-11-18 20:14:17,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 82 transitions, 380 flow [2022-11-18 20:14:17,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:14:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 20:14:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 596 transitions. [2022-11-18 20:14:17,457 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573076923076923 [2022-11-18 20:14:17,457 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 596 transitions. [2022-11-18 20:14:17,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 596 transitions. [2022-11-18 20:14:17,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:17,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 596 transitions. [2022-11-18 20:14:17,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 45.84615384615385) internal successors, (596), 13 states have internal predecessors, (596), 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) [2022-11-18 20:14:17,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 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) [2022-11-18 20:14:17,465 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 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) [2022-11-18 20:14:17,465 INFO L175 Difference]: Start difference. First operand has 103 places, 75 transitions, 258 flow. Second operand 13 states and 596 transitions. [2022-11-18 20:14:17,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 82 transitions, 380 flow [2022-11-18 20:14:17,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 82 transitions, 325 flow, removed 5 selfloop flow, removed 17 redundant places. [2022-11-18 20:14:17,472 INFO L231 Difference]: Finished difference. Result has 94 places, 70 transitions, 212 flow [2022-11-18 20:14:17,472 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=212, PETRI_PLACES=94, PETRI_TRANSITIONS=70} [2022-11-18 20:14:17,473 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 19 predicate places. [2022-11-18 20:14:17,474 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 70 transitions, 212 flow [2022-11-18 20:14:17,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:17,474 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:17,475 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] [2022-11-18 20:14:17,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:14:17,475 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:14:17,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:17,476 INFO L85 PathProgramCache]: Analyzing trace with hash -516552128, now seen corresponding path program 6 times [2022-11-18 20:14:17,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:17,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809776003] [2022-11-18 20:14:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:17,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:17,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:17,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809776003] [2022-11-18 20:14:17,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809776003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:17,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:17,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:14:17,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140942424] [2022-11-18 20:14:17,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:17,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:14:17,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:17,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:14:17,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:14:17,844 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-18 20:14:17,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 70 transitions, 212 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:17,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:17,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-18 20:14:17,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:18,288 INFO L130 PetriNetUnfolder]: 11/95 cut-off events. [2022-11-18 20:14:18,288 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-18 20:14:18,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 95 events. 11/95 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 150 event pairs, 4 based on Foata normal form. 4/97 useless extension candidates. Maximal degree in co-relation 189. Up to 14 conditions per place. [2022-11-18 20:14:18,288 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2022-11-18 20:14:18,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 71 transitions, 292 flow [2022-11-18 20:14:18,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:14:18,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 20:14:18,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 543 transitions. [2022-11-18 20:14:18,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.565625 [2022-11-18 20:14:18,291 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 543 transitions. [2022-11-18 20:14:18,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 543 transitions. [2022-11-18 20:14:18,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:18,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 543 transitions. [2022-11-18 20:14:18,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 45.25) internal successors, (543), 12 states have internal predecessors, (543), 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) [2022-11-18 20:14:18,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 80.0) internal successors, (1040), 13 states have internal predecessors, (1040), 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) [2022-11-18 20:14:18,296 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 80.0) internal successors, (1040), 13 states have internal predecessors, (1040), 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) [2022-11-18 20:14:18,296 INFO L175 Difference]: Start difference. First operand has 94 places, 70 transitions, 212 flow. Second operand 12 states and 543 transitions. [2022-11-18 20:14:18,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 71 transitions, 292 flow [2022-11-18 20:14:18,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 71 transitions, 262 flow, removed 1 selfloop flow, removed 11 redundant places. [2022-11-18 20:14:18,298 INFO L231 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2022-11-18 20:14:18,298 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=84, PETRI_TRANSITIONS=0} [2022-11-18 20:14:18,299 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2022-11-18 20:14:18,299 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2022-11-18 20:14:18,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 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) [2022-11-18 20:14:18,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-18 20:14:18,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-18 20:14:18,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-18 20:14:18,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-18 20:14:18,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-18 20:14:18,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-18 20:14:18,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-18 20:14:18,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:14:18,305 INFO L444 BasicCegarLoop]: Path program histogram: [6, 6, 1, 1] [2022-11-18 20:14:18,310 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:14:18,311 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:14:18,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:14:18 BasicIcfg [2022-11-18 20:14:18,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:14:18,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:14:18,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:14:18,319 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:14:18,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:00" (3/4) ... [2022-11-18 20:14:18,322 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:14:18,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 20:14:18,334 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 20:14:18,334 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:14:18,335 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:14:18,382 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:14:18,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:14:18,383 INFO L158 Benchmark]: Toolchain (without parser) took 19655.70ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 108.4MB in the beginning and 142.8MB in the end (delta: -34.4MB). Peak memory consumption was 138.6MB. Max. memory is 16.1GB. [2022-11-18 20:14:18,383 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:14:18,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.48ms. Allocated memory is still 140.5MB. Free memory was 108.1MB in the beginning and 98.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:14:18,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.13ms. Allocated memory is still 140.5MB. Free memory was 98.9MB in the beginning and 96.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:14:18,384 INFO L158 Benchmark]: Boogie Preprocessor took 43.69ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 95.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:14:18,385 INFO L158 Benchmark]: RCFGBuilder took 535.53ms. Allocated memory is still 140.5MB. Free memory was 95.2MB in the beginning and 81.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:14:18,385 INFO L158 Benchmark]: TraceAbstraction took 18146.46ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 80.7MB in the beginning and 144.9MB in the end (delta: -64.1MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. [2022-11-18 20:14:18,385 INFO L158 Benchmark]: Witness Printer took 63.70ms. Allocated memory is still 314.6MB. Free memory was 144.9MB in the beginning and 142.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:14:18,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.48ms. Allocated memory is still 140.5MB. Free memory was 108.1MB in the beginning and 98.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.13ms. Allocated memory is still 140.5MB. Free memory was 98.9MB in the beginning and 96.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.69ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 95.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 535.53ms. Allocated memory is still 140.5MB. Free memory was 95.2MB in the beginning and 81.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 18146.46ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 80.7MB in the beginning and 144.9MB in the end (delta: -64.1MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. * Witness Printer took 63.70ms. Allocated memory is still 314.6MB. Free memory was 144.9MB in the beginning and 142.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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, 102 locations, 7 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: 18.0s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2653 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2653 mSDsluCounter, 1305 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1073 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3908 IncrementalHoareTripleChecker+Invalid, 4041 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 232 mSDtfsCounter, 3908 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 355 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 341 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=648occurred in iteration=7, InterpolantAutomatonStates: 225, 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, 6.0s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 745 ConstructedInterpolants, 0 QuantifiedInterpolants, 9203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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! [2022-11-18 20:14:18,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e5e59b-41f7-4a88-8cfa-bf9f7267d05f/bin/uautomizer-TMbwUNV5ro/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