./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:24:42,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:24:42,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:24:42,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:24:42,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:24:42,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:24:42,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:24:42,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:24:42,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:24:42,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:24:42,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:24:42,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:24:42,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:24:42,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:24:42,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:24:42,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:24:42,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:24:42,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:24:42,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:24:42,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:24:42,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:24:42,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:24:42,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:24:42,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:24:42,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:24:42,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:24:42,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:24:42,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:24:42,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:24:42,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:24:42,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:24:42,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:24:42,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:24:42,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:24:42,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:24:42,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:24:42,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:24:42,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:24:42,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:24:42,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:24:42,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:24:42,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:24:42,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:24:42,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:24:42,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:24:42,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:24:42,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:24:42,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:24:42,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:24:42,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:24:42,699 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:24:42,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:24:42,700 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:24:42,700 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:24:42,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:24:42,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:24:42,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:24:42,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:24:42,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:24:42,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:24:42,701 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:24:42,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:24:42,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:24:42,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:24:42,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:24:42,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:24:42,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:24:42,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:24:42,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:24:42,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:24:42,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:24:42,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:24:42,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:24:42,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:24:42,704 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:24:42,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:24:42,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:24:42,705 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_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2022-11-20 11:24:42,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:24:43,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:24:43,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:24:43,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:24:43,021 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:24:43,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-20 11:24:46,076 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:24:46,432 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:24:46,433 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-20 11:24:46,460 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/data/cd4244314/d245b107825c4d5f85530f65d43b0079/FLAG960db3ab2 [2022-11-20 11:24:46,476 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/data/cd4244314/d245b107825c4d5f85530f65d43b0079 [2022-11-20 11:24:46,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:24:46,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:24:46,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:24:46,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:24:46,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:24:46,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:24:46" (1/1) ... [2022-11-20 11:24:46,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9a0595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:46, skipping insertion in model container [2022-11-20 11:24:46,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:24:46" (1/1) ... [2022-11-20 11:24:46,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:24:46,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:24:47,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:24:47,195 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:24:47,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:24:47,329 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:24:47,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47 WrapperNode [2022-11-20 11:24:47,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:24:47,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:24:47,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:24:47,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:24:47,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,381 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 86 [2022-11-20 11:24:47,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:24:47,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:24:47,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:24:47,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:24:47,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,418 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:24:47,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:24:47,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:24:47,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:24:47,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (1/1) ... [2022-11-20 11:24:47,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:24:47,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:47,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:24:47,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:24:47,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:24:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:24:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:24:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:24:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:24:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:24:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:24:47,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:24:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:24:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:24:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:24:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:24:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:24:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:24:47,532 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:24:47,670 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:24:47,672 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:24:48,022 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:24:48,030 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:24:48,031 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:24:48,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:48 BoogieIcfgContainer [2022-11-20 11:24:48,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:24:48,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:24:48,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:24:48,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:24:48,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:24:46" (1/3) ... [2022-11-20 11:24:48,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166239d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:48, skipping insertion in model container [2022-11-20 11:24:48,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:47" (2/3) ... [2022-11-20 11:24:48,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166239d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:48, skipping insertion in model container [2022-11-20 11:24:48,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:48" (3/3) ... [2022-11-20 11:24:48,042 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2022-11-20 11:24:48,084 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:24:48,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:24:48,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 11:24:48,122 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:24:48,248 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:24:48,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 133 transitions, 271 flow [2022-11-20 11:24:48,363 INFO L130 PetriNetUnfolder]: 0/132 cut-off events. [2022-11-20 11:24:48,367 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:24:48,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 132 events. 0/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-20 11:24:48,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 133 transitions, 271 flow [2022-11-20 11:24:48,383 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 124 transitions, 251 flow [2022-11-20 11:24:48,401 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:24:48,407 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;@36823880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:24:48,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-20 11:24:48,455 INFO L130 PetriNetUnfolder]: 0/88 cut-off events. [2022-11-20 11:24:48,459 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:24:48,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:48,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:48,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:24:48,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2091410815, now seen corresponding path program 1 times [2022-11-20 11:24:48,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:48,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758304380] [2022-11-20 11:24:48,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:48,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:52,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:52,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758304380] [2022-11-20 11:24:52,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758304380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:52,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:52,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-20 11:24:52,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650096377] [2022-11-20 11:24:52,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:52,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-20 11:24:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:52,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-20 11:24:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2022-11-20 11:24:52,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 133 [2022-11-20 11:24:52,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 124 transitions, 251 flow. Second operand has 29 states, 29 states have (on average 55.13793103448276) internal successors, (1599), 29 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:52,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:52,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 133 [2022-11-20 11:24:52,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:56,301 INFO L130 PetriNetUnfolder]: 96/481 cut-off events. [2022-11-20 11:24:56,302 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:24:56,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 481 events. 96/481 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2102 event pairs, 5 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 618. Up to 40 conditions per place. [2022-11-20 11:24:56,314 INFO L137 encePairwiseOnDemand]: 96/133 looper letters, 90 selfloop transitions, 62 changer transitions 0/197 dead transitions. [2022-11-20 11:24:56,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 197 transitions, 701 flow [2022-11-20 11:24:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-20 11:24:56,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-20 11:24:56,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 2647 transitions. [2022-11-20 11:24:56,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42345224764037753 [2022-11-20 11:24:56,343 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 2647 transitions. [2022-11-20 11:24:56,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 2647 transitions. [2022-11-20 11:24:56,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:56,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 2647 transitions. [2022-11-20 11:24:56,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 56.319148936170215) internal successors, (2647), 47 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:56,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 133.0) internal successors, (6384), 48 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:56,379 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 133.0) internal successors, (6384), 48 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:56,381 INFO L175 Difference]: Start difference. First operand has 128 places, 124 transitions, 251 flow. Second operand 47 states and 2647 transitions. [2022-11-20 11:24:56,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 197 transitions, 701 flow [2022-11-20 11:24:56,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 197 transitions, 700 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:24:56,390 INFO L231 Difference]: Finished difference. Result has 172 places, 155 transitions, 448 flow [2022-11-20 11:24:56,393 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=448, PETRI_PLACES=172, PETRI_TRANSITIONS=155} [2022-11-20 11:24:56,396 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 44 predicate places. [2022-11-20 11:24:56,396 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 155 transitions, 448 flow [2022-11-20 11:24:56,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 55.13793103448276) internal successors, (1599), 29 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:56,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:56,398 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:56,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:24:56,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:24:56,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:56,399 INFO L85 PathProgramCache]: Analyzing trace with hash 409226134, now seen corresponding path program 1 times [2022-11-20 11:24:56,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:56,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822187275] [2022-11-20 11:24:56,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:56,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:59,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:59,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:59,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822187275] [2022-11-20 11:24:59,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822187275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:59,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:59,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-20 11:24:59,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934784809] [2022-11-20 11:24:59,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:59,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-20 11:24:59,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:59,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-20 11:24:59,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2022-11-20 11:24:59,250 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 133 [2022-11-20 11:24:59,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 155 transitions, 448 flow. Second operand has 29 states, 29 states have (on average 55.172413793103445) internal successors, (1600), 29 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:59,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:59,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 133 [2022-11-20 11:24:59,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:25:02,706 INFO L130 PetriNetUnfolder]: 88/450 cut-off events. [2022-11-20 11:25:02,708 INFO L131 PetriNetUnfolder]: For 46/52 co-relation queries the response was YES. [2022-11-20 11:25:02,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 450 events. 88/450 cut-off events. For 46/52 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1893 event pairs, 5 based on Foata normal form. 6/449 useless extension candidates. Maximal degree in co-relation 660. Up to 40 conditions per place. [2022-11-20 11:25:02,715 INFO L137 encePairwiseOnDemand]: 96/133 looper letters, 86 selfloop transitions, 62 changer transitions 0/193 dead transitions. [2022-11-20 11:25:02,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 193 transitions, 820 flow [2022-11-20 11:25:02,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-20 11:25:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-20 11:25:02,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 2643 transitions. [2022-11-20 11:25:02,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42281235002399614 [2022-11-20 11:25:02,724 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 2643 transitions. [2022-11-20 11:25:02,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 2643 transitions. [2022-11-20 11:25:02,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:25:02,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 2643 transitions. [2022-11-20 11:25:02,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 56.234042553191486) internal successors, (2643), 47 states have internal predecessors, (2643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 133.0) internal successors, (6384), 48 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,745 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 133.0) internal successors, (6384), 48 states have internal predecessors, (6384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,746 INFO L175 Difference]: Start difference. First operand has 172 places, 155 transitions, 448 flow. Second operand 47 states and 2643 transitions. [2022-11-20 11:25:02,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 193 transitions, 820 flow [2022-11-20 11:25:02,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 193 transitions, 752 flow, removed 0 selfloop flow, removed 27 redundant places. [2022-11-20 11:25:02,752 INFO L231 Difference]: Finished difference. Result has 190 places, 154 transitions, 502 flow [2022-11-20 11:25:02,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=502, PETRI_PLACES=190, PETRI_TRANSITIONS=154} [2022-11-20 11:25:02,754 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 62 predicate places. [2022-11-20 11:25:02,754 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 154 transitions, 502 flow [2022-11-20 11:25:02,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 55.172413793103445) internal successors, (1600), 29 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:02,756 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:02,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:25:02,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:25:02,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:02,757 INFO L85 PathProgramCache]: Analyzing trace with hash -462755130, now seen corresponding path program 1 times [2022-11-20 11:25:02,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:02,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836141802] [2022-11-20 11:25:02,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:02,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:05,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:25:05,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:05,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836141802] [2022-11-20 11:25:05,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836141802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:05,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:05,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-20 11:25:05,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846347509] [2022-11-20 11:25:05,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:05,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 11:25:05,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:05,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 11:25:05,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-11-20 11:25:05,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 133 [2022-11-20 11:25:05,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 154 transitions, 502 flow. Second operand has 28 states, 28 states have (on average 54.357142857142854) internal successors, (1522), 28 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:05,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:25:05,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 133 [2022-11-20 11:25:05,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:25:08,404 INFO L130 PetriNetUnfolder]: 81/398 cut-off events. [2022-11-20 11:25:08,404 INFO L131 PetriNetUnfolder]: For 115/119 co-relation queries the response was YES. [2022-11-20 11:25:08,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 398 events. 81/398 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1543 event pairs, 0 based on Foata normal form. 4/402 useless extension candidates. Maximal degree in co-relation 630. Up to 45 conditions per place. [2022-11-20 11:25:08,408 INFO L137 encePairwiseOnDemand]: 97/133 looper letters, 89 selfloop transitions, 61 changer transitions 0/201 dead transitions. [2022-11-20 11:25:08,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 201 transitions, 928 flow [2022-11-20 11:25:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 11:25:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-20 11:25:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 2480 transitions. [2022-11-20 11:25:08,423 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4143692564745196 [2022-11-20 11:25:08,423 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 2480 transitions. [2022-11-20 11:25:08,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 2480 transitions. [2022-11-20 11:25:08,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:25:08,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 2480 transitions. [2022-11-20 11:25:08,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 55.111111111111114) internal successors, (2480), 45 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:08,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 133.0) internal successors, (6118), 46 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:08,448 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 133.0) internal successors, (6118), 46 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:08,448 INFO L175 Difference]: Start difference. First operand has 190 places, 154 transitions, 502 flow. Second operand 45 states and 2480 transitions. [2022-11-20 11:25:08,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 201 transitions, 928 flow [2022-11-20 11:25:08,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 201 transitions, 796 flow, removed 0 selfloop flow, removed 46 redundant places. [2022-11-20 11:25:08,456 INFO L231 Difference]: Finished difference. Result has 187 places, 161 transitions, 522 flow [2022-11-20 11:25:08,457 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=522, PETRI_PLACES=187, PETRI_TRANSITIONS=161} [2022-11-20 11:25:08,458 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 59 predicate places. [2022-11-20 11:25:08,458 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 161 transitions, 522 flow [2022-11-20 11:25:08,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 54.357142857142854) internal successors, (1522), 28 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:08,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:08,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:08,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:25:08,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:25:08,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:08,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1460506819, now seen corresponding path program 1 times [2022-11-20 11:25:08,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:08,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822923898] [2022-11-20 11:25:08,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:08,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:25:11,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:11,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822923898] [2022-11-20 11:25:11,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822923898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:11,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:11,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-20 11:25:11,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837831303] [2022-11-20 11:25:11,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:11,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 11:25:11,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:11,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 11:25:11,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-11-20 11:25:11,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 133 [2022-11-20 11:25:11,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 161 transitions, 522 flow. Second operand has 28 states, 28 states have (on average 54.392857142857146) internal successors, (1523), 28 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:11,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:25:11,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 133 [2022-11-20 11:25:11,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:25:15,470 INFO L130 PetriNetUnfolder]: 73/375 cut-off events. [2022-11-20 11:25:15,470 INFO L131 PetriNetUnfolder]: For 92/94 co-relation queries the response was YES. [2022-11-20 11:25:15,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 375 events. 73/375 cut-off events. For 92/94 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1383 event pairs, 1 based on Foata normal form. 11/386 useless extension candidates. Maximal degree in co-relation 589. Up to 26 conditions per place. [2022-11-20 11:25:15,472 INFO L137 encePairwiseOnDemand]: 97/133 looper letters, 0 selfloop transitions, 0 changer transitions 203/203 dead transitions. [2022-11-20 11:25:15,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 203 transitions, 934 flow [2022-11-20 11:25:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 11:25:15,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-20 11:25:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 2478 transitions. [2022-11-20 11:25:15,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41403508771929826 [2022-11-20 11:25:15,483 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 2478 transitions. [2022-11-20 11:25:15,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 2478 transitions. [2022-11-20 11:25:15,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:25:15,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 2478 transitions. [2022-11-20 11:25:15,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 55.06666666666667) internal successors, (2478), 45 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:15,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 133.0) internal successors, (6118), 46 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:15,503 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 133.0) internal successors, (6118), 46 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:15,503 INFO L175 Difference]: Start difference. First operand has 187 places, 161 transitions, 522 flow. Second operand 45 states and 2478 transitions. [2022-11-20 11:25:15,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 203 transitions, 934 flow [2022-11-20 11:25:15,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 203 transitions, 825 flow, removed 0 selfloop flow, removed 37 redundant places. [2022-11-20 11:25:15,508 INFO L231 Difference]: Finished difference. Result has 193 places, 0 transitions, 0 flow [2022-11-20 11:25:15,508 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=0, PETRI_PLACES=193, PETRI_TRANSITIONS=0} [2022-11-20 11:25:15,509 INFO L288 CegarLoopForPetriNet]: 128 programPoint places, 65 predicate places. [2022-11-20 11:25:15,509 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 0 transitions, 0 flow [2022-11-20 11:25:15,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 54.392857142857146) internal successors, (1523), 28 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:15,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-11-20 11:25:15,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-20 11:25:15,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-20 11:25:15,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-20 11:25:15,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-11-20 11:25:15,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-20 11:25:15,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-11-20 11:25:15,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-20 11:25:15,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-20 11:25:15,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:25:15,516 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 11:25:15,522 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:25:15,522 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:25:15,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:25:15 BasicIcfg [2022-11-20 11:25:15,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:25:15,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:25:15,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:25:15,529 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:25:15,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:48" (3/4) ... [2022-11-20 11:25:15,533 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:25:15,539 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 11:25:15,545 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-20 11:25:15,545 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 11:25:15,546 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:25:15,599 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:25:15,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:25:15,600 INFO L158 Benchmark]: Toolchain (without parser) took 29112.92ms. Allocated memory was 153.1MB in the beginning and 406.8MB in the end (delta: 253.8MB). Free memory was 121.4MB in the beginning and 285.0MB in the end (delta: -163.7MB). Peak memory consumption was 91.5MB. Max. memory is 16.1GB. [2022-11-20 11:25:15,600 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:25:15,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 841.82ms. Allocated memory is still 153.1MB. Free memory was 121.4MB in the beginning and 83.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 11:25:15,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.89ms. Allocated memory is still 153.1MB. Free memory was 83.6MB in the beginning and 80.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:25:15,605 INFO L158 Benchmark]: Boogie Preprocessor took 53.50ms. Allocated memory is still 153.1MB. Free memory was 80.7MB in the beginning and 79.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:25:15,613 INFO L158 Benchmark]: RCFGBuilder took 596.62ms. Allocated memory is still 153.1MB. Free memory was 79.0MB in the beginning and 60.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:25:15,613 INFO L158 Benchmark]: TraceAbstraction took 27492.91ms. Allocated memory was 153.1MB in the beginning and 406.8MB in the end (delta: 253.8MB). Free memory was 59.4MB in the beginning and 288.2MB in the end (delta: -228.8MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-11-20 11:25:15,614 INFO L158 Benchmark]: Witness Printer took 70.31ms. Allocated memory is still 406.8MB. Free memory was 288.2MB in the beginning and 285.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:25:15,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 841.82ms. Allocated memory is still 153.1MB. Free memory was 121.4MB in the beginning and 83.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.89ms. Allocated memory is still 153.1MB. Free memory was 83.6MB in the beginning and 80.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.50ms. Allocated memory is still 153.1MB. Free memory was 80.7MB in the beginning and 79.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.62ms. Allocated memory is still 153.1MB. Free memory was 79.0MB in the beginning and 60.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 27492.91ms. Allocated memory was 153.1MB in the beginning and 406.8MB in the end (delta: 253.8MB). Free memory was 59.4MB in the beginning and 288.2MB in the end (delta: -228.8MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Witness Printer took 70.31ms. Allocated memory is still 406.8MB. Free memory was 288.2MB in the beginning and 285.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 167 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1409 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1409 mSDsluCounter, 1875 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1687 mSDsCounter, 235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4998 IncrementalHoareTripleChecker+Invalid, 5233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 235 mSolverCounterUnsat, 188 mSDtfsCounter, 4998 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 279 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4550 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=522occurred in iteration=3, InterpolantAutomatonStates: 184, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.6s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 9216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:25:15,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6089f82-c738-41e4-8453-73c6c6851fbd/bin/uautomizer-ug76WZFUDN/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