./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.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_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/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_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/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_9929ce40-b46b-4762-bd16-d472e4818c12/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 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- 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 20:26:21,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:26:21,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:26:21,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:26:21,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:26:21,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:26:21,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:26:21,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:26:21,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:26:21,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:26:21,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:26:21,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:26:21,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:26:21,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:26:21,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:26:21,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:26:21,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:26:21,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:26:21,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:26:21,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:26:21,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:26:21,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:26:21,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:26:21,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:26:21,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:26:21,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:26:21,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:26:21,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:26:21,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:26:21,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:26:21,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:26:21,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:26:21,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:26:21,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:26:21,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:26:21,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:26:21,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:26:21,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:26:21,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:26:21,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:26:21,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:26:21,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:26:21,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:26:21,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:26:21,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:26:21,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:26:21,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:26:21,281 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:26:21,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:26:21,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:26:21,282 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:26:21,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:26:21,284 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:26:21,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:26:21,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:26:21,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:26:21,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:26:21,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:26:21,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:26:21,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:26:21,285 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:26:21,286 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:26:21,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:26:21,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:26:21,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:26:21,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:26:21,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:26:21,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:26:21,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:26:21,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:26:21,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:26:21,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:26:21,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:26:21,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:26:21,289 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:26:21,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:26:21,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:26:21,290 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_9929ce40-b46b-4762-bd16-d472e4818c12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-18 20:26:21,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:26:21,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:26:21,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:26:21,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:26:21,584 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:26:21,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-18 20:26:21,660 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/data/48725b30c/32fa9f1501c34587badf5e624456a7cb/FLAG0fd931303 [2022-11-18 20:26:22,465 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:26:22,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-18 20:26:22,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/data/48725b30c/32fa9f1501c34587badf5e624456a7cb/FLAG0fd931303 [2022-11-18 20:26:23,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/data/48725b30c/32fa9f1501c34587badf5e624456a7cb [2022-11-18 20:26:23,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:26:23,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:26:23,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:26:23,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:26:23,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:26:23,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:26:23" (1/1) ... [2022-11-18 20:26:23,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:23, skipping insertion in model container [2022-11-18 20:26:23,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:26:23" (1/1) ... [2022-11-18 20:26:23,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:26:23,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:26:23,963 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-18 20:26:24,030 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-18 20:26:24,039 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-18 20:26:24,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:26:24,070 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:26:24,119 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-18 20:26:24,136 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-18 20:26:24,139 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-18 20:26:24,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:26:24,321 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:26:24,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24 WrapperNode [2022-11-18 20:26:24,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:26:24,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:26:24,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:26:24,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:26:24,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,448 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1805 [2022-11-18 20:26:24,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:26:24,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:26:24,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:26:24,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:26:24,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,530 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:26:24,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:26:24,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:26:24,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:26:24,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (1/1) ... [2022-11-18 20:26:24,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:26:24,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:24,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:26:24,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:26:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-18 20:26:24,684 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-18 20:26:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:26:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:26:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:26:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:26:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:26:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:26:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:26:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:26:24,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:26:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:26:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:26:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:26:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:26:24,688 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 20:26:25,103 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:26:25,105 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:26:27,311 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:26:27,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:26:27,717 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-18 20:26:27,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:27 BoogieIcfgContainer [2022-11-18 20:26:27,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:26:27,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:26:27,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:26:27,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:26:27,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:26:23" (1/3) ... [2022-11-18 20:26:27,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c602be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:26:27, skipping insertion in model container [2022-11-18 20:26:27,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:24" (2/3) ... [2022-11-18 20:26:27,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c602be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:26:27, skipping insertion in model container [2022-11-18 20:26:27,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:27" (3/3) ... [2022-11-18 20:26:27,730 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-18 20:26:27,739 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:26:27,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:26:27,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2022-11-18 20:26:27,749 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:26:27,975 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:26:28,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1796 places, 1841 transitions, 3690 flow [2022-11-18 20:26:29,810 INFO L130 PetriNetUnfolder]: 89/3411 cut-off events. [2022-11-18 20:26:29,811 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:26:29,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3417 conditions, 3411 events. 89/3411 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 16375 event pairs, 0 based on Foata normal form. 0/3153 useless extension candidates. Maximal degree in co-relation 1739. Up to 6 conditions per place. [2022-11-18 20:26:29,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 1796 places, 1841 transitions, 3690 flow [2022-11-18 20:26:29,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1796 places, 1841 transitions, 3690 flow [2022-11-18 20:26:29,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:26:29,981 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;@3af5968a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:26:29,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2022-11-18 20:26:29,989 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-18 20:26:29,989 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:26:29,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:29,990 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:26:29,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:26:29,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:29,998 INFO L85 PathProgramCache]: Analyzing trace with hash 217550942, now seen corresponding path program 1 times [2022-11-18 20:26:30,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:30,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925492960] [2022-11-18 20:26:30,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:30,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:30,757 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 20:26:30,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:30,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925492960] [2022-11-18 20:26:30,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925492960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:30,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:30,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:30,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72515539] [2022-11-18 20:26:30,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:30,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:30,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:30,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:30,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:26:30,842 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1760 out of 1841 [2022-11-18 20:26:30,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1796 places, 1841 transitions, 3690 flow. Second operand has 4 states, 4 states have (on average 1761.25) internal successors, (7045), 4 states have internal predecessors, (7045), 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 20:26:30,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:30,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1760 of 1841 [2022-11-18 20:26:30,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:34,854 INFO L130 PetriNetUnfolder]: 367/10409 cut-off events. [2022-11-18 20:26:34,854 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:26:34,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10914 conditions, 10409 events. 367/10409 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 88836 event pairs, 176 based on Foata normal form. 174/9930 useless extension candidates. Maximal degree in co-relation 9203. Up to 496 conditions per place. [2022-11-18 20:26:34,963 INFO L137 encePairwiseOnDemand]: 1821/1841 looper letters, 56 selfloop transitions, 2 changer transitions 0/1818 dead transitions. [2022-11-18 20:26:34,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1792 places, 1818 transitions, 3760 flow [2022-11-18 20:26:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:26:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:26:35,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7116 transitions. [2022-11-18 20:26:35,065 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9663226507332972 [2022-11-18 20:26:35,065 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 7116 transitions. [2022-11-18 20:26:35,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 7116 transitions. [2022-11-18 20:26:35,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:35,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 7116 transitions. [2022-11-18 20:26:35,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 1779.0) internal successors, (7116), 4 states have internal predecessors, (7116), 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 20:26:35,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1841.0) internal successors, (9205), 5 states have internal predecessors, (9205), 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 20:26:35,128 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1841.0) internal successors, (9205), 5 states have internal predecessors, (9205), 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 20:26:35,130 INFO L175 Difference]: Start difference. First operand has 1796 places, 1841 transitions, 3690 flow. Second operand 4 states and 7116 transitions. [2022-11-18 20:26:35,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1792 places, 1818 transitions, 3760 flow [2022-11-18 20:26:35,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1792 places, 1818 transitions, 3760 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:26:35,173 INFO L231 Difference]: Finished difference. Result has 1792 places, 1818 transitions, 3648 flow [2022-11-18 20:26:35,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3644, PETRI_DIFFERENCE_MINUEND_PLACES=1789, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1816, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3648, PETRI_PLACES=1792, PETRI_TRANSITIONS=1818} [2022-11-18 20:26:35,181 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -4 predicate places. [2022-11-18 20:26:35,182 INFO L495 AbstractCegarLoop]: Abstraction has has 1792 places, 1818 transitions, 3648 flow [2022-11-18 20:26:35,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1761.25) internal successors, (7045), 4 states have internal predecessors, (7045), 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 20:26:35,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:35,187 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:26:35,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:26:35,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:26:35,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1623531086, now seen corresponding path program 1 times [2022-11-18 20:26:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:35,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223104886] [2022-11-18 20:26:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:35,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:35,336 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 20:26:35,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:35,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223104886] [2022-11-18 20:26:35,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223104886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:35,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:35,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:35,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714606834] [2022-11-18 20:26:35,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:35,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:26:35,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:26:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:26:35,347 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1718 out of 1841 [2022-11-18 20:26:35,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1792 places, 1818 transitions, 3648 flow. Second operand has 3 states, 3 states have (on average 1721.6666666666667) internal successors, (5165), 3 states have internal predecessors, (5165), 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 20:26:35,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:35,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1718 of 1841 [2022-11-18 20:26:35,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:41,515 INFO L130 PetriNetUnfolder]: 783/16010 cut-off events. [2022-11-18 20:26:41,515 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:26:41,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17260 conditions, 16010 events. 783/16010 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 145508 event pairs, 248 based on Foata normal form. 0/14935 useless extension candidates. Maximal degree in co-relation 17224. Up to 661 conditions per place. [2022-11-18 20:26:41,638 INFO L137 encePairwiseOnDemand]: 1817/1841 looper letters, 161 selfloop transitions, 12 changer transitions 11/1892 dead transitions. [2022-11-18 20:26:41,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1794 places, 1892 transitions, 4148 flow [2022-11-18 20:26:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:26:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:26:41,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5342 transitions. [2022-11-18 20:26:41,649 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9672279558211118 [2022-11-18 20:26:41,649 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5342 transitions. [2022-11-18 20:26:41,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5342 transitions. [2022-11-18 20:26:41,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:41,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5342 transitions. [2022-11-18 20:26:41,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1780.6666666666667) internal successors, (5342), 3 states have internal predecessors, (5342), 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 20:26:41,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1841.0) internal successors, (7364), 4 states have internal predecessors, (7364), 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 20:26:41,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1841.0) internal successors, (7364), 4 states have internal predecessors, (7364), 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 20:26:41,687 INFO L175 Difference]: Start difference. First operand has 1792 places, 1818 transitions, 3648 flow. Second operand 3 states and 5342 transitions. [2022-11-18 20:26:41,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1794 places, 1892 transitions, 4148 flow [2022-11-18 20:26:41,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1792 places, 1892 transitions, 4145 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:26:41,725 INFO L231 Difference]: Finished difference. Result has 1793 places, 1813 transitions, 3701 flow [2022-11-18 20:26:41,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3645, PETRI_DIFFERENCE_MINUEND_PLACES=1790, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3701, PETRI_PLACES=1793, PETRI_TRANSITIONS=1813} [2022-11-18 20:26:41,729 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -3 predicate places. [2022-11-18 20:26:41,729 INFO L495 AbstractCegarLoop]: Abstraction has has 1793 places, 1813 transitions, 3701 flow [2022-11-18 20:26:41,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1721.6666666666667) internal successors, (5165), 3 states have internal predecessors, (5165), 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 20:26:41,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:41,733 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] [2022-11-18 20:26:41,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:26:41,733 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:26:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1057927376, now seen corresponding path program 1 times [2022-11-18 20:26:41,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:41,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920254874] [2022-11-18 20:26:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:41,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:41,984 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 20:26:41,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:41,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920254874] [2022-11-18 20:26:41,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920254874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:41,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:41,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:41,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199728933] [2022-11-18 20:26:41,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:41,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:41,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:41,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:41,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:26:41,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-18 20:26:42,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1793 places, 1813 transitions, 3701 flow. Second operand has 4 states, 4 states have (on average 1715.25) internal successors, (6861), 4 states have internal predecessors, (6861), 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 20:26:42,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:42,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-18 20:26:42,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:48,269 INFO L130 PetriNetUnfolder]: 783/15998 cut-off events. [2022-11-18 20:26:48,269 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-11-18 20:26:48,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17368 conditions, 15998 events. 783/15998 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 145050 event pairs, 248 based on Foata normal form. 0/14975 useless extension candidates. Maximal degree in co-relation 17332. Up to 665 conditions per place. [2022-11-18 20:26:48,367 INFO L137 encePairwiseOnDemand]: 1825/1841 looper letters, 167 selfloop transitions, 14 changer transitions 2/1886 dead transitions. [2022-11-18 20:26:48,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1788 places, 1886 transitions, 4213 flow [2022-11-18 20:26:48,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:26:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:26:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8750 transitions. [2022-11-18 20:26:48,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9505703422053232 [2022-11-18 20:26:48,383 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8750 transitions. [2022-11-18 20:26:48,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8750 transitions. [2022-11-18 20:26:48,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:48,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8750 transitions. [2022-11-18 20:26:48,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1750.0) internal successors, (8750), 5 states have internal predecessors, (8750), 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 20:26:48,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 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 20:26:48,425 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 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 20:26:48,425 INFO L175 Difference]: Start difference. First operand has 1793 places, 1813 transitions, 3701 flow. Second operand 5 states and 8750 transitions. [2022-11-18 20:26:48,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1788 places, 1886 transitions, 4213 flow [2022-11-18 20:26:48,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1787 places, 1886 transitions, 4201 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:26:48,457 INFO L231 Difference]: Finished difference. Result has 1790 places, 1815 transitions, 3745 flow [2022-11-18 20:26:48,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3689, PETRI_DIFFERENCE_MINUEND_PLACES=1783, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1799, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3745, PETRI_PLACES=1790, PETRI_TRANSITIONS=1815} [2022-11-18 20:26:48,460 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -6 predicate places. [2022-11-18 20:26:48,461 INFO L495 AbstractCegarLoop]: Abstraction has has 1790 places, 1815 transitions, 3745 flow [2022-11-18 20:26:48,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1715.25) internal successors, (6861), 4 states have internal predecessors, (6861), 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 20:26:48,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:48,463 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:48,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:26:48,464 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:26:48,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash -170976965, now seen corresponding path program 1 times [2022-11-18 20:26:48,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:48,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689482975] [2022-11-18 20:26:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:48,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:26:48,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:48,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689482975] [2022-11-18 20:26:48,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689482975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:48,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:48,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:48,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126494387] [2022-11-18 20:26:48,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:48,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:48,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:48,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:48,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:26:48,629 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-18 20:26:48,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1790 places, 1815 transitions, 3745 flow. Second operand has 4 states, 4 states have (on average 1717.0) internal successors, (6868), 4 states have internal predecessors, (6868), 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 20:26:48,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:48,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-18 20:26:48,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:55,277 INFO L130 PetriNetUnfolder]: 906/16484 cut-off events. [2022-11-18 20:26:55,277 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2022-11-18 20:26:55,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17987 conditions, 16484 events. 906/16484 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 148145 event pairs, 372 based on Foata normal form. 16/15451 useless extension candidates. Maximal degree in co-relation 17948. Up to 1254 conditions per place. [2022-11-18 20:26:55,397 INFO L137 encePairwiseOnDemand]: 1817/1841 looper letters, 92 selfloop transitions, 25 changer transitions 1/1821 dead transitions. [2022-11-18 20:26:55,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1790 places, 1821 transitions, 3985 flow [2022-11-18 20:26:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:26:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:26:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8681 transitions. [2022-11-18 20:26:55,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9430744160782184 [2022-11-18 20:26:55,413 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8681 transitions. [2022-11-18 20:26:55,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8681 transitions. [2022-11-18 20:26:55,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:55,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8681 transitions. [2022-11-18 20:26:55,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1736.2) internal successors, (8681), 5 states have internal predecessors, (8681), 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 20:26:55,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 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 20:26:55,456 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 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 20:26:55,457 INFO L175 Difference]: Start difference. First operand has 1790 places, 1815 transitions, 3745 flow. Second operand 5 states and 8681 transitions. [2022-11-18 20:26:55,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1790 places, 1821 transitions, 3985 flow [2022-11-18 20:26:55,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1788 places, 1821 transitions, 3961 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:26:55,491 INFO L231 Difference]: Finished difference. Result has 1789 places, 1816 transitions, 3798 flow [2022-11-18 20:26:55,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3705, PETRI_DIFFERENCE_MINUEND_PLACES=1784, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1811, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3798, PETRI_PLACES=1789, PETRI_TRANSITIONS=1816} [2022-11-18 20:26:55,495 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -7 predicate places. [2022-11-18 20:26:55,495 INFO L495 AbstractCegarLoop]: Abstraction has has 1789 places, 1816 transitions, 3798 flow [2022-11-18 20:26:55,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1717.0) internal successors, (6868), 4 states have internal predecessors, (6868), 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 20:26:55,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:55,498 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:55,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:26:55,498 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:26:55,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:55,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1005314413, now seen corresponding path program 1 times [2022-11-18 20:26:55,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:55,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990816341] [2022-11-18 20:26:55,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:55,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:55,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:55,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990816341] [2022-11-18 20:26:55,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990816341] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:55,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358144783] [2022-11-18 20:26:55,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:55,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:55,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:55,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:55,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:26:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:56,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:26:56,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:56,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:26:56,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358144783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:56,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:26:56,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:26:56,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157061719] [2022-11-18 20:26:56,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:56,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:26:56,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:26:56,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:26:56,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-18 20:26:56,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1789 places, 1816 transitions, 3798 flow. Second operand has 6 states, 6 states have (on average 1715.8333333333333) internal successors, (10295), 6 states have internal predecessors, (10295), 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 20:26:56,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:56,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-18 20:26:56,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:04,033 INFO L130 PetriNetUnfolder]: 904/16365 cut-off events. [2022-11-18 20:27:04,034 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2022-11-18 20:27:04,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17950 conditions, 16365 events. 904/16365 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 147018 event pairs, 253 based on Foata normal form. 1/15326 useless extension candidates. Maximal degree in co-relation 17911. Up to 661 conditions per place. [2022-11-18 20:27:04,157 INFO L137 encePairwiseOnDemand]: 1822/1841 looper letters, 160 selfloop transitions, 20 changer transitions 0/1883 dead transitions. [2022-11-18 20:27:04,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1794 places, 1883 transitions, 4290 flow [2022-11-18 20:27:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:27:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:27:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12172 transitions. [2022-11-18 20:27:04,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9445177310467914 [2022-11-18 20:27:04,181 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 12172 transitions. [2022-11-18 20:27:04,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 12172 transitions. [2022-11-18 20:27:04,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:04,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 12172 transitions. [2022-11-18 20:27:04,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1738.857142857143) internal successors, (12172), 7 states have internal predecessors, (12172), 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 20:27:04,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1841.0) internal successors, (14728), 8 states have internal predecessors, (14728), 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 20:27:04,244 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1841.0) internal successors, (14728), 8 states have internal predecessors, (14728), 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 20:27:04,244 INFO L175 Difference]: Start difference. First operand has 1789 places, 1816 transitions, 3798 flow. Second operand 7 states and 12172 transitions. [2022-11-18 20:27:04,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1794 places, 1883 transitions, 4290 flow [2022-11-18 20:27:04,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1790 places, 1883 transitions, 4259 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:27:04,283 INFO L231 Difference]: Finished difference. Result has 1790 places, 1815 transitions, 3803 flow [2022-11-18 20:27:04,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3763, PETRI_DIFFERENCE_MINUEND_PLACES=1784, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3803, PETRI_PLACES=1790, PETRI_TRANSITIONS=1815} [2022-11-18 20:27:04,287 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -6 predicate places. [2022-11-18 20:27:04,287 INFO L495 AbstractCegarLoop]: Abstraction has has 1790 places, 1815 transitions, 3803 flow [2022-11-18 20:27:04,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1715.8333333333333) internal successors, (10295), 6 states have internal predecessors, (10295), 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 20:27:04,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:04,291 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] [2022-11-18 20:27:04,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:27:04,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:04,499 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:27:04,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:04,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1573867015, now seen corresponding path program 1 times [2022-11-18 20:27:04,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:04,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059050521] [2022-11-18 20:27:04,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:04,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:04,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:04,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059050521] [2022-11-18 20:27:04,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059050521] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:27:04,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201111192] [2022-11-18 20:27:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:04,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:04,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:27:04,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:27:04,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:27:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:04,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:27:04,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:27:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:05,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:27:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:05,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201111192] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:27:05,074 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:27:05,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:27:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648081904] [2022-11-18 20:27:05,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:27:05,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:27:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:05,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:27:05,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:27:05,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-18 20:27:05,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1790 places, 1815 transitions, 3803 flow. Second operand has 10 states, 10 states have (on average 1716.4) internal successors, (17164), 10 states have internal predecessors, (17164), 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 20:27:05,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:05,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-18 20:27:05,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:12,306 INFO L130 PetriNetUnfolder]: 846/16974 cut-off events. [2022-11-18 20:27:12,306 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2022-11-18 20:27:12,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18522 conditions, 16974 events. 846/16974 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 153772 event pairs, 468 based on Foata normal form. 2/15869 useless extension candidates. Maximal degree in co-relation 18483. Up to 583 conditions per place. [2022-11-18 20:27:12,405 INFO L137 encePairwiseOnDemand]: 1818/1841 looper letters, 163 selfloop transitions, 29 changer transitions 0/1895 dead transitions. [2022-11-18 20:27:12,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1799 places, 1895 transitions, 4363 flow [2022-11-18 20:27:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:27:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:27:12,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 17324 transitions. [2022-11-18 20:27:12,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.941010320478001 [2022-11-18 20:27:12,433 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 17324 transitions. [2022-11-18 20:27:12,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 17324 transitions. [2022-11-18 20:27:12,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:12,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 17324 transitions. [2022-11-18 20:27:12,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 1732.4) internal successors, (17324), 10 states have internal predecessors, (17324), 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 20:27:12,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1841.0) internal successors, (20251), 11 states have internal predecessors, (20251), 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 20:27:12,493 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1841.0) internal successors, (20251), 11 states have internal predecessors, (20251), 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 20:27:12,493 INFO L175 Difference]: Start difference. First operand has 1790 places, 1815 transitions, 3803 flow. Second operand 10 states and 17324 transitions. [2022-11-18 20:27:12,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1799 places, 1895 transitions, 4363 flow [2022-11-18 20:27:12,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1794 places, 1895 transitions, 4325 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-11-18 20:27:12,529 INFO L231 Difference]: Finished difference. Result has 1798 places, 1819 transitions, 3892 flow [2022-11-18 20:27:12,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3769, PETRI_DIFFERENCE_MINUEND_PLACES=1785, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1787, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3892, PETRI_PLACES=1798, PETRI_TRANSITIONS=1819} [2022-11-18 20:27:12,532 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, 2 predicate places. [2022-11-18 20:27:12,532 INFO L495 AbstractCegarLoop]: Abstraction has has 1798 places, 1819 transitions, 3892 flow [2022-11-18 20:27:12,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1716.4) internal successors, (17164), 10 states have internal predecessors, (17164), 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 20:27:12,536 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:12,536 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:12,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:27:12,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:12,742 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:27:12,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:12,743 INFO L85 PathProgramCache]: Analyzing trace with hash -448730161, now seen corresponding path program 2 times [2022-11-18 20:27:12,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:12,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326104737] [2022-11-18 20:27:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:12,921 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-18 20:27:12,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:12,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326104737] [2022-11-18 20:27:12,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326104737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:12,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:12,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:27:12,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207552400] [2022-11-18 20:27:12,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:12,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:27:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:27:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:27:12,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-18 20:27:12,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1798 places, 1819 transitions, 3892 flow. Second operand has 4 states, 4 states have (on average 1717.0) internal successors, (6868), 4 states have internal predecessors, (6868), 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 20:27:12,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:12,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-18 20:27:12,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:19,779 INFO L130 PetriNetUnfolder]: 783/15982 cut-off events. [2022-11-18 20:27:19,779 INFO L131 PetriNetUnfolder]: For 466/466 co-relation queries the response was YES. [2022-11-18 20:27:19,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17601 conditions, 15982 events. 783/15982 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 144494 event pairs, 244 based on Foata normal form. 0/14967 useless extension candidates. Maximal degree in co-relation 17560. Up to 636 conditions per place. [2022-11-18 20:27:19,893 INFO L137 encePairwiseOnDemand]: 1825/1841 looper letters, 170 selfloop transitions, 14 changer transitions 0/1887 dead transitions. [2022-11-18 20:27:19,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1800 places, 1887 transitions, 4396 flow [2022-11-18 20:27:19,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:27:19,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:27:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8748 transitions. [2022-11-18 20:27:19,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503530689842477 [2022-11-18 20:27:19,908 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8748 transitions. [2022-11-18 20:27:19,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8748 transitions. [2022-11-18 20:27:19,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:19,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8748 transitions. [2022-11-18 20:27:19,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1749.6) internal successors, (8748), 5 states have internal predecessors, (8748), 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 20:27:19,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 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 20:27:19,942 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 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 20:27:19,942 INFO L175 Difference]: Start difference. First operand has 1798 places, 1819 transitions, 3892 flow. Second operand 5 states and 8748 transitions. [2022-11-18 20:27:19,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1800 places, 1887 transitions, 4396 flow [2022-11-18 20:27:19,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1797 places, 1887 transitions, 4364 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-11-18 20:27:19,988 INFO L231 Difference]: Finished difference. Result has 1797 places, 1817 transitions, 3884 flow [2022-11-18 20:27:19,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3856, PETRI_DIFFERENCE_MINUEND_PLACES=1793, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3884, PETRI_PLACES=1797, PETRI_TRANSITIONS=1817} [2022-11-18 20:27:19,993 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, 1 predicate places. [2022-11-18 20:27:19,993 INFO L495 AbstractCegarLoop]: Abstraction has has 1797 places, 1817 transitions, 3884 flow [2022-11-18 20:27:19,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1717.0) internal successors, (6868), 4 states have internal predecessors, (6868), 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 20:27:19,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:19,995 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:19,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:27:19,996 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:27:19,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2097772935, now seen corresponding path program 1 times [2022-11-18 20:27:19,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:19,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022376154] [2022-11-18 20:27:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:19,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:20,685 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:27:20,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022376154] [2022-11-18 20:27:20,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022376154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:27:20,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630437141] [2022-11-18 20:27:20,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:20,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:20,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:27:20,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:27:20,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:27:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:20,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:27:20,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:27:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:27:21,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:27:21,154 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:27:21,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630437141] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:27:21,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:27:21,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-11-18 20:27:21,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435889170] [2022-11-18 20:27:21,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:27:21,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:27:21,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:21,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:27:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:27:21,173 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-18 20:27:21,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1797 places, 1817 transitions, 3884 flow. Second operand has 11 states, 11 states have (on average 1716.6363636363637) internal successors, (18883), 11 states have internal predecessors, (18883), 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 20:27:21,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:21,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-18 20:27:21,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:27:28,489 INFO L130 PetriNetUnfolder]: 918/17313 cut-off events. [2022-11-18 20:27:28,490 INFO L131 PetriNetUnfolder]: For 491/491 co-relation queries the response was YES. [2022-11-18 20:27:28,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19056 conditions, 17313 events. 918/17313 cut-off events. For 491/491 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 155692 event pairs, 412 based on Foata normal form. 1/16195 useless extension candidates. Maximal degree in co-relation 19014. Up to 637 conditions per place. [2022-11-18 20:27:28,616 INFO L137 encePairwiseOnDemand]: 1818/1841 looper letters, 167 selfloop transitions, 32 changer transitions 0/1900 dead transitions. [2022-11-18 20:27:28,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1809 places, 1900 transitions, 4472 flow [2022-11-18 20:27:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:27:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 20:27:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 22469 transitions. [2022-11-18 20:27:28,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.938829231604897 [2022-11-18 20:27:28,640 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 22469 transitions. [2022-11-18 20:27:28,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 22469 transitions. [2022-11-18 20:27:28,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:27:28,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 22469 transitions. [2022-11-18 20:27:28,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 1728.3846153846155) internal successors, (22469), 13 states have internal predecessors, (22469), 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 20:27:28,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 1841.0) internal successors, (25774), 14 states have internal predecessors, (25774), 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 20:27:28,708 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 1841.0) internal successors, (25774), 14 states have internal predecessors, (25774), 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 20:27:28,708 INFO L175 Difference]: Start difference. First operand has 1797 places, 1817 transitions, 3884 flow. Second operand 13 states and 22469 transitions. [2022-11-18 20:27:28,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1809 places, 1900 transitions, 4472 flow [2022-11-18 20:27:28,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1806 places, 1900 transitions, 4448 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-18 20:27:28,742 INFO L231 Difference]: Finished difference. Result has 1810 places, 1821 transitions, 3989 flow [2022-11-18 20:27:28,745 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3860, PETRI_DIFFERENCE_MINUEND_PLACES=1794, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3989, PETRI_PLACES=1810, PETRI_TRANSITIONS=1821} [2022-11-18 20:27:28,749 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, 14 predicate places. [2022-11-18 20:27:28,749 INFO L495 AbstractCegarLoop]: Abstraction has has 1810 places, 1821 transitions, 3989 flow [2022-11-18 20:27:28,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1716.6363636363637) internal successors, (18883), 11 states have internal predecessors, (18883), 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 20:27:28,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:28,753 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:28,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:27:28,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9929ce40-b46b-4762-bd16-d472e4818c12/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:28,959 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-18 20:27:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash 492953266, now seen corresponding path program 2 times [2022-11-18 20:27:28,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:28,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334763507] [2022-11-18 20:27:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:27:29,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:27:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:27:29,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:27:29,115 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:27:29,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2022-11-18 20:27:29,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 97 remaining) [2022-11-18 20:27:29,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 97 remaining) [2022-11-18 20:27:29,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 97 remaining) [2022-11-18 20:27:29,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 97 remaining) [2022-11-18 20:27:29,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 97 remaining) [2022-11-18 20:27:29,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 97 remaining) [2022-11-18 20:27:29,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 97 remaining) [2022-11-18 20:27:29,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 97 remaining) [2022-11-18 20:27:29,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 97 remaining) [2022-11-18 20:27:29,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 97 remaining) [2022-11-18 20:27:29,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 97 remaining) [2022-11-18 20:27:29,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 97 remaining) [2022-11-18 20:27:29,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 97 remaining) [2022-11-18 20:27:29,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 97 remaining) [2022-11-18 20:27:29,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 97 remaining) [2022-11-18 20:27:29,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 97 remaining) [2022-11-18 20:27:29,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 97 remaining) [2022-11-18 20:27:29,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 97 remaining) [2022-11-18 20:27:29,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 97 remaining) [2022-11-18 20:27:29,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 97 remaining) [2022-11-18 20:27:29,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 97 remaining) [2022-11-18 20:27:29,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 97 remaining) [2022-11-18 20:27:29,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 97 remaining) [2022-11-18 20:27:29,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 97 remaining) [2022-11-18 20:27:29,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 97 remaining) [2022-11-18 20:27:29,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 97 remaining) [2022-11-18 20:27:29,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 97 remaining) [2022-11-18 20:27:29,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 97 remaining) [2022-11-18 20:27:29,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 97 remaining) [2022-11-18 20:27:29,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 97 remaining) [2022-11-18 20:27:29,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 97 remaining) [2022-11-18 20:27:29,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 97 remaining) [2022-11-18 20:27:29,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 97 remaining) [2022-11-18 20:27:29,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 97 remaining) [2022-11-18 20:27:29,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 97 remaining) [2022-11-18 20:27:29,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 97 remaining) [2022-11-18 20:27:29,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 97 remaining) [2022-11-18 20:27:29,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 97 remaining) [2022-11-18 20:27:29,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 97 remaining) [2022-11-18 20:27:29,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 97 remaining) [2022-11-18 20:27:29,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 97 remaining) [2022-11-18 20:27:29,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 97 remaining) [2022-11-18 20:27:29,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 97 remaining) [2022-11-18 20:27:29,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 97 remaining) [2022-11-18 20:27:29,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 97 remaining) [2022-11-18 20:27:29,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 97 remaining) [2022-11-18 20:27:29,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 97 remaining) [2022-11-18 20:27:29,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 97 remaining) [2022-11-18 20:27:29,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 97 remaining) [2022-11-18 20:27:29,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 97 remaining) [2022-11-18 20:27:29,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 97 remaining) [2022-11-18 20:27:29,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 97 remaining) [2022-11-18 20:27:29,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 97 remaining) [2022-11-18 20:27:29,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 97 remaining) [2022-11-18 20:27:29,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 97 remaining) [2022-11-18 20:27:29,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 97 remaining) [2022-11-18 20:27:29,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 97 remaining) [2022-11-18 20:27:29,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 97 remaining) [2022-11-18 20:27:29,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 97 remaining) [2022-11-18 20:27:29,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 97 remaining) [2022-11-18 20:27:29,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 97 remaining) [2022-11-18 20:27:29,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 97 remaining) [2022-11-18 20:27:29,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 97 remaining) [2022-11-18 20:27:29,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 97 remaining) [2022-11-18 20:27:29,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 97 remaining) [2022-11-18 20:27:29,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 97 remaining) [2022-11-18 20:27:29,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 97 remaining) [2022-11-18 20:27:29,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 97 remaining) [2022-11-18 20:27:29,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 97 remaining) [2022-11-18 20:27:29,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 97 remaining) [2022-11-18 20:27:29,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 97 remaining) [2022-11-18 20:27:29,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 97 remaining) [2022-11-18 20:27:29,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 97 remaining) [2022-11-18 20:27:29,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 97 remaining) [2022-11-18 20:27:29,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 97 remaining) [2022-11-18 20:27:29,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 97 remaining) [2022-11-18 20:27:29,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 97 remaining) [2022-11-18 20:27:29,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 97 remaining) [2022-11-18 20:27:29,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 97 remaining) [2022-11-18 20:27:29,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 97 remaining) [2022-11-18 20:27:29,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 97 remaining) [2022-11-18 20:27:29,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 97 remaining) [2022-11-18 20:27:29,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 97 remaining) [2022-11-18 20:27:29,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 97 remaining) [2022-11-18 20:27:29,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 97 remaining) [2022-11-18 20:27:29,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 97 remaining) [2022-11-18 20:27:29,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 97 remaining) [2022-11-18 20:27:29,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 97 remaining) [2022-11-18 20:27:29,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 97 remaining) [2022-11-18 20:27:29,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 97 remaining) [2022-11-18 20:27:29,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 97 remaining) [2022-11-18 20:27:29,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 97 remaining) [2022-11-18 20:27:29,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 97 remaining) [2022-11-18 20:27:29,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 97 remaining) [2022-11-18 20:27:29,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 97 remaining) [2022-11-18 20:27:29,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 97 remaining) [2022-11-18 20:27:29,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:27:29,144 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:27:29,146 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:27:29,147 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 20:27:29,303 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:27:29,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1955 places, 2003 transitions, 4024 flow [2022-11-18 20:27:31,191 INFO L130 PetriNetUnfolder]: 140/5203 cut-off events. [2022-11-18 20:27:31,192 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:27:31,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5217 conditions, 5203 events. 140/5203 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 30997 event pairs, 0 based on Foata normal form. 0/4803 useless extension candidates. Maximal degree in co-relation 3413. Up to 9 conditions per place. [2022-11-18 20:27:31,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 1955 places, 2003 transitions, 4024 flow [2022-11-18 20:27:31,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1955 places, 2003 transitions, 4024 flow [2022-11-18 20:27:31,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:27:31,324 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;@3af5968a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:27:31,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2022-11-18 20:27:31,328 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-18 20:27:31,328 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:27:31,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:27:31,328 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:31,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2022-11-18 20:27:31,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:31,329 INFO L85 PathProgramCache]: Analyzing trace with hash -859839554, now seen corresponding path program 1 times [2022-11-18 20:27:31,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:31,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87311807] [2022-11-18 20:27:31,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:31,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:31,452 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 20:27:31,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:31,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87311807] [2022-11-18 20:27:31,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87311807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:31,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:31,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:27:31,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621453814] [2022-11-18 20:27:31,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:31,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:27:31,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:31,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:27:31,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:27:31,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1915 out of 2003 [2022-11-18 20:27:31,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1955 places, 2003 transitions, 4024 flow. Second operand has 4 states, 4 states have (on average 1916.25) internal successors, (7665), 4 states have internal predecessors, (7665), 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 20:27:31,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:27:31,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1915 of 2003 [2022-11-18 20:27:31,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand