./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-6b4ec56 [2022-11-20 11:05:36,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:05:36,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:05:36,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:05:36,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:05:36,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:05:36,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:05:36,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:05:36,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:05:36,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:05:36,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:05:36,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:05:36,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:05:36,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:05:36,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:05:36,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:05:36,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:05:36,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:05:36,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:05:36,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:05:36,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:05:36,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:05:36,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:05:36,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:05:36,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:05:36,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:05:36,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:05:36,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:05:36,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:05:36,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:05:36,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:05:36,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:05:36,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:05:36,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:05:36,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:05:36,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:05:36,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:05:36,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:05:36,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:05:36,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:05:36,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:05:36,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:05:36,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:05:36,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:05:36,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:05:36,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:05:36,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:05:36,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:05:36,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:05:36,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:05:36,962 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:05:36,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:05:36,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:05:36,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:05:36,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:05:36,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:05:36,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:05:36,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:05:36,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:05:36,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:05:36,965 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:05:36,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:05:36,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:05:36,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:05:36,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:05:36,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:05:36,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:05:36,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:05:36,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:05:36,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:05:36,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:05:36,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:05:36,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:05:36,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:05:36,968 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:05:36,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:05:36,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:05:36,969 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_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-20 11:05:37,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:05:37,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:05:37,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:05:37,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:05:37,369 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:05:37,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-20 11:05:40,447 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:05:40,932 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:05:40,939 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-20 11:05:40,959 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/data/687eefe08/92d3b75962174c9db14a34278b707251/FLAG276052abc [2022-11-20 11:05:40,984 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/data/687eefe08/92d3b75962174c9db14a34278b707251 [2022-11-20 11:05:40,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:05:40,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:05:40,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:05:40,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:05:40,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:05:40,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:05:40" (1/1) ... [2022-11-20 11:05:41,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5904f390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:41, skipping insertion in model container [2022-11-20 11:05:41,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:05:40" (1/1) ... [2022-11-20 11:05:41,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:05:41,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:05:42,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-20 11:05:42,219 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-20 11:05:42,227 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-20 11:05:42,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:05:42,271 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:05:42,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-20 11:05:42,353 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-20 11:05:42,355 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-20 11:05:42,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:05:42,460 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:05:42,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42 WrapperNode [2022-11-20 11:05:42,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:05:42,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:05:42,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:05:42,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:05:42,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,599 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1809 [2022-11-20 11:05:42,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:05:42,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:05:42,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:05:42,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:05:42,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,695 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:05:42,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:05:42,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:05:42,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:05:42,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (1/1) ... [2022-11-20 11:05:42,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:05:42,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:05:42,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:05:42,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:05:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-20 11:05:42,845 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-20 11:05:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:05:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:05:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:05:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:05:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:05:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:05:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:05:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:05:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:05:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:05:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:05:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:05:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:05:42,849 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:05:43,353 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:05:43,355 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:05:45,656 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:05:46,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:05:46,066 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-20 11:05:46,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:46 BoogieIcfgContainer [2022-11-20 11:05:46,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:05:46,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:05:46,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:05:46,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:05:46,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:05:40" (1/3) ... [2022-11-20 11:05:46,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f411b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:05:46, skipping insertion in model container [2022-11-20 11:05:46,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:05:42" (2/3) ... [2022-11-20 11:05:46,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f411b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:05:46, skipping insertion in model container [2022-11-20 11:05:46,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:05:46" (3/3) ... [2022-11-20 11:05:46,079 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-20 11:05:46,089 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:05:46,099 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:05:46,100 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2022-11-20 11:05:46,100 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:05:46,309 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 11:05:46,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1800 places, 1845 transitions, 3698 flow [2022-11-20 11:05:48,011 INFO L130 PetriNetUnfolder]: 89/3419 cut-off events. [2022-11-20 11:05:48,011 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:05:48,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3425 conditions, 3419 events. 89/3419 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 16424 event pairs, 0 based on Foata normal form. 0/3161 useless extension candidates. Maximal degree in co-relation 1743. Up to 6 conditions per place. [2022-11-20 11:05:48,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 1800 places, 1845 transitions, 3698 flow [2022-11-20 11:05:48,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1800 places, 1845 transitions, 3698 flow [2022-11-20 11:05:48,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:05:48,175 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;@67ac960f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:05:48,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2022-11-20 11:05:48,182 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-20 11:05:48,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:05:48,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:05:48,184 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] [2022-11-20 11:05:48,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:05:48,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:48,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2027481313, now seen corresponding path program 1 times [2022-11-20 11:05:48,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:05:48,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757082016] [2022-11-20 11:05:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:48,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:05:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:48,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:48,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:05:48,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757082016] [2022-11-20 11:05:48,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757082016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:05:48,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:05:48,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:05:48,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166626205] [2022-11-20 11:05:48,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:05:48,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:05:48,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:05:48,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:05:48,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:05:48,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1764 out of 1845 [2022-11-20 11:05:48,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1800 places, 1845 transitions, 3698 flow. Second operand has 4 states, 4 states have (on average 1765.25) internal successors, (7061), 4 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:48,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:05:48,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1764 of 1845 [2022-11-20 11:05:48,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:05:52,998 INFO L130 PetriNetUnfolder]: 367/10417 cut-off events. [2022-11-20 11:05:52,999 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 11:05:53,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10922 conditions, 10417 events. 367/10417 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 88973 event pairs, 176 based on Foata normal form. 174/9938 useless extension candidates. Maximal degree in co-relation 9207. Up to 496 conditions per place. [2022-11-20 11:05:53,110 INFO L137 encePairwiseOnDemand]: 1825/1845 looper letters, 56 selfloop transitions, 2 changer transitions 0/1822 dead transitions. [2022-11-20 11:05:53,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1796 places, 1822 transitions, 3768 flow [2022-11-20 11:05:53,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:05:53,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 11:05:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7132 transitions. [2022-11-20 11:05:53,143 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9663956639566396 [2022-11-20 11:05:53,144 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 7132 transitions. [2022-11-20 11:05:53,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 7132 transitions. [2022-11-20 11:05:53,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:05:53,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 7132 transitions. [2022-11-20 11:05:53,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 1783.0) internal successors, (7132), 4 states have internal predecessors, (7132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:53,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1845.0) internal successors, (9225), 5 states have internal predecessors, (9225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:53,204 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1845.0) internal successors, (9225), 5 states have internal predecessors, (9225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:53,206 INFO L175 Difference]: Start difference. First operand has 1800 places, 1845 transitions, 3698 flow. Second operand 4 states and 7132 transitions. [2022-11-20 11:05:53,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1796 places, 1822 transitions, 3768 flow [2022-11-20 11:05:53,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1796 places, 1822 transitions, 3768 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:05:53,260 INFO L231 Difference]: Finished difference. Result has 1796 places, 1822 transitions, 3656 flow [2022-11-20 11:05:53,265 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=3652, PETRI_DIFFERENCE_MINUEND_PLACES=1793, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1822, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3656, PETRI_PLACES=1796, PETRI_TRANSITIONS=1822} [2022-11-20 11:05:53,270 INFO L288 CegarLoopForPetriNet]: 1800 programPoint places, -4 predicate places. [2022-11-20 11:05:53,271 INFO L495 AbstractCegarLoop]: Abstraction has has 1796 places, 1822 transitions, 3656 flow [2022-11-20 11:05:53,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1765.25) internal successors, (7061), 4 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:53,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:05:53,276 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] [2022-11-20 11:05:53,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:05:53,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:05:53,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:53,277 INFO L85 PathProgramCache]: Analyzing trace with hash -770831792, now seen corresponding path program 1 times [2022-11-20 11:05:53,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:05:53,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823540255] [2022-11-20 11:05:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:05:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:05:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:53,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:05:53,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:05:53,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823540255] [2022-11-20 11:05:53,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823540255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:05:53,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:05:53,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:05:53,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550854006] [2022-11-20 11:05:53,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:05:53,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:05:53,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:05:53,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:05:53,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:05:53,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1722 out of 1845 [2022-11-20 11:05:53,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1796 places, 1822 transitions, 3656 flow. Second operand has 3 states, 3 states have (on average 1725.6666666666667) internal successors, (5177), 3 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:05:53,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:05:53,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1722 of 1845 [2022-11-20 11:05:53,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:00,316 INFO L130 PetriNetUnfolder]: 919/16451 cut-off events. [2022-11-20 11:06:00,316 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:06:00,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17834 conditions, 16451 events. 919/16451 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 148445 event pairs, 262 based on Foata normal form. 0/15352 useless extension candidates. Maximal degree in co-relation 17798. Up to 731 conditions per place. [2022-11-20 11:06:00,460 INFO L137 encePairwiseOnDemand]: 1821/1845 looper letters, 161 selfloop transitions, 12 changer transitions 11/1896 dead transitions. [2022-11-20 11:06:00,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1798 places, 1896 transitions, 4156 flow [2022-11-20 11:06:00,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:06:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:06:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5354 transitions. [2022-11-20 11:06:00,471 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9672990063233966 [2022-11-20 11:06:00,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5354 transitions. [2022-11-20 11:06:00,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5354 transitions. [2022-11-20 11:06:00,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:00,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5354 transitions. [2022-11-20 11:06:00,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1784.6666666666667) internal successors, (5354), 3 states have internal predecessors, (5354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:00,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1845.0) internal successors, (7380), 4 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:00,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1845.0) internal successors, (7380), 4 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:00,514 INFO L175 Difference]: Start difference. First operand has 1796 places, 1822 transitions, 3656 flow. Second operand 3 states and 5354 transitions. [2022-11-20 11:06:00,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1798 places, 1896 transitions, 4156 flow [2022-11-20 11:06:00,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1796 places, 1896 transitions, 4153 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:06:00,554 INFO L231 Difference]: Finished difference. Result has 1797 places, 1817 transitions, 3709 flow [2022-11-20 11:06:00,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=3653, PETRI_DIFFERENCE_MINUEND_PLACES=1794, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1822, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1810, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3709, PETRI_PLACES=1797, PETRI_TRANSITIONS=1817} [2022-11-20 11:06:00,558 INFO L288 CegarLoopForPetriNet]: 1800 programPoint places, -3 predicate places. [2022-11-20 11:06:00,558 INFO L495 AbstractCegarLoop]: Abstraction has has 1797 places, 1817 transitions, 3709 flow [2022-11-20 11:06:00,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1725.6666666666667) internal successors, (5177), 3 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:00,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:00,561 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] [2022-11-20 11:06:00,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:06:00,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:06:00,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1409363284, now seen corresponding path program 1 times [2022-11-20 11:06:00,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:00,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008425451] [2022-11-20 11:06:00,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:00,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:00,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:00,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008425451] [2022-11-20 11:06:00,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008425451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:00,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:00,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:06:00,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270686208] [2022-11-20 11:06:00,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:00,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:06:00,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:00,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:06:00,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:06:00,986 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1717 out of 1845 [2022-11-20 11:06:00,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1797 places, 1817 transitions, 3709 flow. Second operand has 4 states, 4 states have (on average 1719.25) internal successors, (6877), 4 states have internal predecessors, (6877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:00,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:00,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1717 of 1845 [2022-11-20 11:06:00,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:07,885 INFO L130 PetriNetUnfolder]: 919/16439 cut-off events. [2022-11-20 11:06:07,885 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-11-20 11:06:07,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17942 conditions, 16439 events. 919/16439 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 148293 event pairs, 262 based on Foata normal form. 0/15392 useless extension candidates. Maximal degree in co-relation 17906. Up to 735 conditions per place. [2022-11-20 11:06:08,014 INFO L137 encePairwiseOnDemand]: 1829/1845 looper letters, 167 selfloop transitions, 14 changer transitions 2/1890 dead transitions. [2022-11-20 11:06:08,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1792 places, 1890 transitions, 4221 flow [2022-11-20 11:06:08,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:06:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:06:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8770 transitions. [2022-11-20 11:06:08,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9506775067750678 [2022-11-20 11:06:08,031 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8770 transitions. [2022-11-20 11:06:08,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8770 transitions. [2022-11-20 11:06:08,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:08,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8770 transitions. [2022-11-20 11:06:08,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1754.0) internal successors, (8770), 5 states have internal predecessors, (8770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:08,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1845.0) internal successors, (11070), 6 states have internal predecessors, (11070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:08,073 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1845.0) internal successors, (11070), 6 states have internal predecessors, (11070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:08,073 INFO L175 Difference]: Start difference. First operand has 1797 places, 1817 transitions, 3709 flow. Second operand 5 states and 8770 transitions. [2022-11-20 11:06:08,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1792 places, 1890 transitions, 4221 flow [2022-11-20 11:06:08,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1791 places, 1890 transitions, 4209 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:06:08,109 INFO L231 Difference]: Finished difference. Result has 1794 places, 1819 transitions, 3753 flow [2022-11-20 11:06:08,112 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=3697, PETRI_DIFFERENCE_MINUEND_PLACES=1787, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3753, PETRI_PLACES=1794, PETRI_TRANSITIONS=1819} [2022-11-20 11:06:08,115 INFO L288 CegarLoopForPetriNet]: 1800 programPoint places, -6 predicate places. [2022-11-20 11:06:08,115 INFO L495 AbstractCegarLoop]: Abstraction has has 1794 places, 1819 transitions, 3753 flow [2022-11-20 11:06:08,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1719.25) internal successors, (6877), 4 states have internal predecessors, (6877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:08,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:08,118 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] [2022-11-20 11:06:08,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:06:08,119 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:06:08,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:08,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1417004801, now seen corresponding path program 1 times [2022-11-20 11:06:08,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:08,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471216873] [2022-11-20 11:06:08,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:08,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:08,336 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:06:08,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:08,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471216873] [2022-11-20 11:06:08,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471216873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:08,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:08,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:06:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415664057] [2022-11-20 11:06:08,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:08,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:06:08,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:08,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:06:08,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:06:08,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1717 out of 1845 [2022-11-20 11:06:08,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1794 places, 1819 transitions, 3753 flow. Second operand has 4 states, 4 states have (on average 1721.0) internal successors, (6884), 4 states have internal predecessors, (6884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:08,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:08,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1717 of 1845 [2022-11-20 11:06:08,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:14,777 INFO L130 PetriNetUnfolder]: 771/16010 cut-off events. [2022-11-20 11:06:14,777 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-11-20 11:06:14,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17383 conditions, 16010 events. 771/16010 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 145499 event pairs, 492 based on Foata normal form. 16/15005 useless extension candidates. Maximal degree in co-relation 17344. Up to 1131 conditions per place. [2022-11-20 11:06:14,901 INFO L137 encePairwiseOnDemand]: 1821/1845 looper letters, 92 selfloop transitions, 25 changer transitions 1/1825 dead transitions. [2022-11-20 11:06:14,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1794 places, 1825 transitions, 3993 flow [2022-11-20 11:06:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:06:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:06:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8701 transitions. [2022-11-20 11:06:14,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9431978319783197 [2022-11-20 11:06:14,921 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8701 transitions. [2022-11-20 11:06:14,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8701 transitions. [2022-11-20 11:06:14,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:14,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8701 transitions. [2022-11-20 11:06:14,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1740.2) internal successors, (8701), 5 states have internal predecessors, (8701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:14,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1845.0) internal successors, (11070), 6 states have internal predecessors, (11070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:14,967 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1845.0) internal successors, (11070), 6 states have internal predecessors, (11070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:14,967 INFO L175 Difference]: Start difference. First operand has 1794 places, 1819 transitions, 3753 flow. Second operand 5 states and 8701 transitions. [2022-11-20 11:06:14,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1794 places, 1825 transitions, 3993 flow [2022-11-20 11:06:14,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1792 places, 1825 transitions, 3969 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:06:15,272 INFO L231 Difference]: Finished difference. Result has 1793 places, 1820 transitions, 3806 flow [2022-11-20 11:06:15,274 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=3713, PETRI_DIFFERENCE_MINUEND_PLACES=1788, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1790, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3806, PETRI_PLACES=1793, PETRI_TRANSITIONS=1820} [2022-11-20 11:06:15,275 INFO L288 CegarLoopForPetriNet]: 1800 programPoint places, -7 predicate places. [2022-11-20 11:06:15,275 INFO L495 AbstractCegarLoop]: Abstraction has has 1793 places, 1820 transitions, 3806 flow [2022-11-20 11:06:15,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1721.0) internal successors, (6884), 4 states have internal predecessors, (6884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:15,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:15,278 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] [2022-11-20 11:06:15,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:06:15,279 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:06:15,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash 977480084, now seen corresponding path program 1 times [2022-11-20 11:06:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:15,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161306091] [2022-11-20 11:06:15,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:15,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:15,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161306091] [2022-11-20 11:06:15,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161306091] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:15,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536305234] [2022-11-20 11:06:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:15,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:15,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:15,560 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:15,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:06:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:15,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:06:15,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:15,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:15,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536305234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:15,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:15,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:06:15,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621945894] [2022-11-20 11:06:15,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:15,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:06:15,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:15,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:06:15,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:06:15,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1717 out of 1845 [2022-11-20 11:06:15,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1793 places, 1820 transitions, 3806 flow. Second operand has 6 states, 6 states have (on average 1719.8333333333333) internal successors, (10319), 6 states have internal predecessors, (10319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:15,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:15,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1717 of 1845 [2022-11-20 11:06:15,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:22,946 INFO L130 PetriNetUnfolder]: 906/16556 cut-off events. [2022-11-20 11:06:22,947 INFO L131 PetriNetUnfolder]: For 262/262 co-relation queries the response was YES. [2022-11-20 11:06:23,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18141 conditions, 16556 events. 906/16556 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 149114 event pairs, 194 based on Foata normal form. 1/15508 useless extension candidates. Maximal degree in co-relation 18102. Up to 661 conditions per place. [2022-11-20 11:06:23,070 INFO L137 encePairwiseOnDemand]: 1826/1845 looper letters, 160 selfloop transitions, 20 changer transitions 0/1887 dead transitions. [2022-11-20 11:06:23,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1798 places, 1887 transitions, 4298 flow [2022-11-20 11:06:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:06:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:06:23,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12200 transitions. [2022-11-20 11:06:23,096 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9446380178087496 [2022-11-20 11:06:23,096 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 12200 transitions. [2022-11-20 11:06:23,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 12200 transitions. [2022-11-20 11:06:23,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:23,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 12200 transitions. [2022-11-20 11:06:23,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1742.857142857143) internal successors, (12200), 7 states have internal predecessors, (12200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:23,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1845.0) internal successors, (14760), 8 states have internal predecessors, (14760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:23,151 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1845.0) internal successors, (14760), 8 states have internal predecessors, (14760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:23,151 INFO L175 Difference]: Start difference. First operand has 1793 places, 1820 transitions, 3806 flow. Second operand 7 states and 12200 transitions. [2022-11-20 11:06:23,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1798 places, 1887 transitions, 4298 flow [2022-11-20 11:06:23,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1794 places, 1887 transitions, 4267 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:06:23,184 INFO L231 Difference]: Finished difference. Result has 1794 places, 1819 transitions, 3811 flow [2022-11-20 11:06:23,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=3771, PETRI_DIFFERENCE_MINUEND_PLACES=1788, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1799, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3811, PETRI_PLACES=1794, PETRI_TRANSITIONS=1819} [2022-11-20 11:06:23,188 INFO L288 CegarLoopForPetriNet]: 1800 programPoint places, -6 predicate places. [2022-11-20 11:06:23,188 INFO L495 AbstractCegarLoop]: Abstraction has has 1794 places, 1819 transitions, 3811 flow [2022-11-20 11:06:23,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1719.8333333333333) internal successors, (10319), 6 states have internal predecessors, (10319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:23,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:23,192 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:23,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:23,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:23,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:06:23,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:23,400 INFO L85 PathProgramCache]: Analyzing trace with hash -128087875, now seen corresponding path program 1 times [2022-11-20 11:06:23,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:23,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494200820] [2022-11-20 11:06:23,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:23,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:23,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:23,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494200820] [2022-11-20 11:06:23,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494200820] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:23,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429788824] [2022-11-20 11:06:23,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:23,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:23,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:23,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:23,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:06:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:23,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:06:23,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:23,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:06:23,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:23,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429788824] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:06:23,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:06:23,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 11:06:23,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839101925] [2022-11-20 11:06:23,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:06:23,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:06:23,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:06:23,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:06:23,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1717 out of 1845 [2022-11-20 11:06:23,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1794 places, 1819 transitions, 3811 flow. Second operand has 10 states, 10 states have (on average 1720.4) internal successors, (17204), 10 states have internal predecessors, (17204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:23,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:23,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1717 of 1845 [2022-11-20 11:06:23,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:30,452 INFO L130 PetriNetUnfolder]: 771/16020 cut-off events. [2022-11-20 11:06:30,452 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2022-11-20 11:06:30,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17507 conditions, 16020 events. 771/16020 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 145626 event pairs, 248 based on Foata normal form. 2/15005 useless extension candidates. Maximal degree in co-relation 17468. Up to 575 conditions per place. [2022-11-20 11:06:30,581 INFO L137 encePairwiseOnDemand]: 1822/1845 looper letters, 163 selfloop transitions, 29 changer transitions 0/1899 dead transitions. [2022-11-20 11:06:30,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1803 places, 1899 transitions, 4371 flow [2022-11-20 11:06:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:06:30,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 11:06:30,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 17364 transitions. [2022-11-20 11:06:30,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411382113821138 [2022-11-20 11:06:30,621 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 17364 transitions. [2022-11-20 11:06:30,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 17364 transitions. [2022-11-20 11:06:30,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:30,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 17364 transitions. [2022-11-20 11:06:30,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 1736.4) internal successors, (17364), 10 states have internal predecessors, (17364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:30,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1845.0) internal successors, (20295), 11 states have internal predecessors, (20295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:30,705 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1845.0) internal successors, (20295), 11 states have internal predecessors, (20295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:30,706 INFO L175 Difference]: Start difference. First operand has 1794 places, 1819 transitions, 3811 flow. Second operand 10 states and 17364 transitions. [2022-11-20 11:06:30,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1803 places, 1899 transitions, 4371 flow [2022-11-20 11:06:30,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1798 places, 1899 transitions, 4333 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-11-20 11:06:30,752 INFO L231 Difference]: Finished difference. Result has 1802 places, 1823 transitions, 3900 flow [2022-11-20 11:06:30,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=3777, PETRI_DIFFERENCE_MINUEND_PLACES=1789, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1791, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3900, PETRI_PLACES=1802, PETRI_TRANSITIONS=1823} [2022-11-20 11:06:30,758 INFO L288 CegarLoopForPetriNet]: 1800 programPoint places, 2 predicate places. [2022-11-20 11:06:30,758 INFO L495 AbstractCegarLoop]: Abstraction has has 1802 places, 1823 transitions, 3900 flow [2022-11-20 11:06:30,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1720.4) internal successors, (17204), 10 states have internal predecessors, (17204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:30,764 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:30,764 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] [2022-11-20 11:06:30,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:30,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:30,970 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:06:30,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:30,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1076307177, now seen corresponding path program 2 times [2022-11-20 11:06:30,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:30,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472380736] [2022-11-20 11:06:30,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:30,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:31,191 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-20 11:06:31,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:31,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472380736] [2022-11-20 11:06:31,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472380736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:31,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:31,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:06:31,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797185196] [2022-11-20 11:06:31,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:31,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:06:31,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:31,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:06:31,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:06:31,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1717 out of 1845 [2022-11-20 11:06:31,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1802 places, 1823 transitions, 3900 flow. Second operand has 4 states, 4 states have (on average 1721.0) internal successors, (6884), 4 states have internal predecessors, (6884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:31,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:31,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1717 of 1845 [2022-11-20 11:06:31,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:37,806 INFO L130 PetriNetUnfolder]: 783/16022 cut-off events. [2022-11-20 11:06:37,806 INFO L131 PetriNetUnfolder]: For 466/466 co-relation queries the response was YES. [2022-11-20 11:06:37,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17641 conditions, 16022 events. 783/16022 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 145814 event pairs, 244 based on Foata normal form. 0/15007 useless extension candidates. Maximal degree in co-relation 17600. Up to 636 conditions per place. [2022-11-20 11:06:37,933 INFO L137 encePairwiseOnDemand]: 1829/1845 looper letters, 170 selfloop transitions, 14 changer transitions 0/1891 dead transitions. [2022-11-20 11:06:37,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1804 places, 1891 transitions, 4404 flow [2022-11-20 11:06:37,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:06:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:06:37,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8768 transitions. [2022-11-20 11:06:37,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504607046070461 [2022-11-20 11:06:37,958 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8768 transitions. [2022-11-20 11:06:37,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8768 transitions. [2022-11-20 11:06:37,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:37,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8768 transitions. [2022-11-20 11:06:38,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1753.6) internal successors, (8768), 5 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:38,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1845.0) internal successors, (11070), 6 states have internal predecessors, (11070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:38,026 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1845.0) internal successors, (11070), 6 states have internal predecessors, (11070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:38,027 INFO L175 Difference]: Start difference. First operand has 1802 places, 1823 transitions, 3900 flow. Second operand 5 states and 8768 transitions. [2022-11-20 11:06:38,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1804 places, 1891 transitions, 4404 flow [2022-11-20 11:06:38,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1801 places, 1891 transitions, 4372 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-11-20 11:06:38,065 INFO L231 Difference]: Finished difference. Result has 1801 places, 1821 transitions, 3892 flow [2022-11-20 11:06:38,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=3864, PETRI_DIFFERENCE_MINUEND_PLACES=1797, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1807, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3892, PETRI_PLACES=1801, PETRI_TRANSITIONS=1821} [2022-11-20 11:06:38,069 INFO L288 CegarLoopForPetriNet]: 1800 programPoint places, 1 predicate places. [2022-11-20 11:06:38,069 INFO L495 AbstractCegarLoop]: Abstraction has has 1801 places, 1821 transitions, 3892 flow [2022-11-20 11:06:38,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1721.0) internal successors, (6884), 4 states have internal predecessors, (6884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:38,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:38,072 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] [2022-11-20 11:06:38,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:06:38,073 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:06:38,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:38,073 INFO L85 PathProgramCache]: Analyzing trace with hash 516124783, now seen corresponding path program 1 times [2022-11-20 11:06:38,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:38,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010345267] [2022-11-20 11:06:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:38,525 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:06:38,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:38,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010345267] [2022-11-20 11:06:38,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010345267] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:38,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573362625] [2022-11-20 11:06:38,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:38,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:38,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:38,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:38,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:06:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:38,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:06:38,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:06:38,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:06:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:06:39,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573362625] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:06:39,048 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:06:39,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-11-20 11:06:39,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392996295] [2022-11-20 11:06:39,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:06:39,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:06:39,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:39,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:06:39,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:06:39,066 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1717 out of 1845 [2022-11-20 11:06:39,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1801 places, 1821 transitions, 3892 flow. Second operand has 11 states, 11 states have (on average 1720.6363636363637) internal successors, (18927), 11 states have internal predecessors, (18927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:39,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:39,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1717 of 1845 [2022-11-20 11:06:39,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:46,600 INFO L130 PetriNetUnfolder]: 904/16420 cut-off events. [2022-11-20 11:06:46,600 INFO L131 PetriNetUnfolder]: For 491/491 co-relation queries the response was YES. [2022-11-20 11:06:46,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18163 conditions, 16420 events. 904/16420 cut-off events. For 491/491 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 147587 event pairs, 192 based on Foata normal form. 1/15391 useless extension candidates. Maximal degree in co-relation 18121. Up to 637 conditions per place. [2022-11-20 11:06:46,705 INFO L137 encePairwiseOnDemand]: 1822/1845 looper letters, 167 selfloop transitions, 32 changer transitions 0/1904 dead transitions. [2022-11-20 11:06:46,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1813 places, 1904 transitions, 4480 flow [2022-11-20 11:06:46,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:06:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:06:46,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 22521 transitions. [2022-11-20 11:06:46,725 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389618511569731 [2022-11-20 11:06:46,726 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 22521 transitions. [2022-11-20 11:06:46,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 22521 transitions. [2022-11-20 11:06:46,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:46,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 22521 transitions. [2022-11-20 11:06:46,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 1732.3846153846155) internal successors, (22521), 13 states have internal predecessors, (22521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:46,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 1845.0) internal successors, (25830), 14 states have internal predecessors, (25830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:46,800 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 1845.0) internal successors, (25830), 14 states have internal predecessors, (25830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:46,801 INFO L175 Difference]: Start difference. First operand has 1801 places, 1821 transitions, 3892 flow. Second operand 13 states and 22521 transitions. [2022-11-20 11:06:46,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1813 places, 1904 transitions, 4480 flow [2022-11-20 11:06:46,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1810 places, 1904 transitions, 4456 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-20 11:06:46,835 INFO L231 Difference]: Finished difference. Result has 1814 places, 1825 transitions, 3997 flow [2022-11-20 11:06:46,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=3868, PETRI_DIFFERENCE_MINUEND_PLACES=1798, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1790, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3997, PETRI_PLACES=1814, PETRI_TRANSITIONS=1825} [2022-11-20 11:06:46,838 INFO L288 CegarLoopForPetriNet]: 1800 programPoint places, 14 predicate places. [2022-11-20 11:06:46,839 INFO L495 AbstractCegarLoop]: Abstraction has has 1814 places, 1825 transitions, 3997 flow [2022-11-20 11:06:46,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1720.6363636363637) internal successors, (18927), 11 states have internal predecessors, (18927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:46,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:46,843 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] [2022-11-20 11:06:46,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:47,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec4a9be-fef1-4fd9-9a82-fe5ee0f6ab66/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 11:06:47,057 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-20 11:06:47,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:47,058 INFO L85 PathProgramCache]: Analyzing trace with hash -660593828, now seen corresponding path program 2 times [2022-11-20 11:06:47,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:47,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131858084] [2022-11-20 11:06:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:47,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:47,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:47,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:47,230 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:06:47,231 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2022-11-20 11:06:47,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 97 remaining) [2022-11-20 11:06:47,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 97 remaining) [2022-11-20 11:06:47,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 97 remaining) [2022-11-20 11:06:47,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 97 remaining) [2022-11-20 11:06:47,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 97 remaining) [2022-11-20 11:06:47,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 97 remaining) [2022-11-20 11:06:47,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 97 remaining) [2022-11-20 11:06:47,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 97 remaining) [2022-11-20 11:06:47,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 97 remaining) [2022-11-20 11:06:47,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 97 remaining) [2022-11-20 11:06:47,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 97 remaining) [2022-11-20 11:06:47,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 97 remaining) [2022-11-20 11:06:47,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 97 remaining) [2022-11-20 11:06:47,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 97 remaining) [2022-11-20 11:06:47,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 97 remaining) [2022-11-20 11:06:47,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 97 remaining) [2022-11-20 11:06:47,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 97 remaining) [2022-11-20 11:06:47,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 97 remaining) [2022-11-20 11:06:47,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 97 remaining) [2022-11-20 11:06:47,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 97 remaining) [2022-11-20 11:06:47,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 97 remaining) [2022-11-20 11:06:47,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 97 remaining) [2022-11-20 11:06:47,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 97 remaining) [2022-11-20 11:06:47,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 97 remaining) [2022-11-20 11:06:47,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 97 remaining) [2022-11-20 11:06:47,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 97 remaining) [2022-11-20 11:06:47,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 97 remaining) [2022-11-20 11:06:47,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 97 remaining) [2022-11-20 11:06:47,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 97 remaining) [2022-11-20 11:06:47,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 97 remaining) [2022-11-20 11:06:47,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 97 remaining) [2022-11-20 11:06:47,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 97 remaining) [2022-11-20 11:06:47,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 97 remaining) [2022-11-20 11:06:47,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 97 remaining) [2022-11-20 11:06:47,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 97 remaining) [2022-11-20 11:06:47,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 97 remaining) [2022-11-20 11:06:47,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 97 remaining) [2022-11-20 11:06:47,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 97 remaining) [2022-11-20 11:06:47,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 97 remaining) [2022-11-20 11:06:47,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 97 remaining) [2022-11-20 11:06:47,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 97 remaining) [2022-11-20 11:06:47,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 97 remaining) [2022-11-20 11:06:47,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 97 remaining) [2022-11-20 11:06:47,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 97 remaining) [2022-11-20 11:06:47,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 97 remaining) [2022-11-20 11:06:47,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 97 remaining) [2022-11-20 11:06:47,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 97 remaining) [2022-11-20 11:06:47,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 97 remaining) [2022-11-20 11:06:47,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 97 remaining) [2022-11-20 11:06:47,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 97 remaining) [2022-11-20 11:06:47,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 97 remaining) [2022-11-20 11:06:47,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 97 remaining) [2022-11-20 11:06:47,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 97 remaining) [2022-11-20 11:06:47,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 97 remaining) [2022-11-20 11:06:47,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 97 remaining) [2022-11-20 11:06:47,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 97 remaining) [2022-11-20 11:06:47,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 97 remaining) [2022-11-20 11:06:47,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 97 remaining) [2022-11-20 11:06:47,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 97 remaining) [2022-11-20 11:06:47,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 97 remaining) [2022-11-20 11:06:47,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 97 remaining) [2022-11-20 11:06:47,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 97 remaining) [2022-11-20 11:06:47,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 97 remaining) [2022-11-20 11:06:47,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 97 remaining) [2022-11-20 11:06:47,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 97 remaining) [2022-11-20 11:06:47,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 97 remaining) [2022-11-20 11:06:47,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 97 remaining) [2022-11-20 11:06:47,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 97 remaining) [2022-11-20 11:06:47,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 97 remaining) [2022-11-20 11:06:47,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 97 remaining) [2022-11-20 11:06:47,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 97 remaining) [2022-11-20 11:06:47,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 97 remaining) [2022-11-20 11:06:47,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 97 remaining) [2022-11-20 11:06:47,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 97 remaining) [2022-11-20 11:06:47,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 97 remaining) [2022-11-20 11:06:47,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 97 remaining) [2022-11-20 11:06:47,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 97 remaining) [2022-11-20 11:06:47,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 97 remaining) [2022-11-20 11:06:47,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 97 remaining) [2022-11-20 11:06:47,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 97 remaining) [2022-11-20 11:06:47,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 97 remaining) [2022-11-20 11:06:47,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 97 remaining) [2022-11-20 11:06:47,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 97 remaining) [2022-11-20 11:06:47,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 97 remaining) [2022-11-20 11:06:47,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 97 remaining) [2022-11-20 11:06:47,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 97 remaining) [2022-11-20 11:06:47,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 97 remaining) [2022-11-20 11:06:47,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 97 remaining) [2022-11-20 11:06:47,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 97 remaining) [2022-11-20 11:06:47,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 97 remaining) [2022-11-20 11:06:47,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 97 remaining) [2022-11-20 11:06:47,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 97 remaining) [2022-11-20 11:06:47,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 97 remaining) [2022-11-20 11:06:47,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 97 remaining) [2022-11-20 11:06:47,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 97 remaining) [2022-11-20 11:06:47,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 97 remaining) [2022-11-20 11:06:47,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:06:47,253 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-11-20 11:06:47,255 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 11:06:47,256 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 11:06:47,415 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:06:47,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1959 places, 2007 transitions, 4032 flow [2022-11-20 11:06:49,391 INFO L130 PetriNetUnfolder]: 140/5215 cut-off events. [2022-11-20 11:06:49,391 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 11:06:49,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5229 conditions, 5215 events. 140/5215 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 31071 event pairs, 0 based on Foata normal form. 0/4815 useless extension candidates. Maximal degree in co-relation 3421. Up to 9 conditions per place. [2022-11-20 11:06:49,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 1959 places, 2007 transitions, 4032 flow [2022-11-20 11:06:49,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1959 places, 2007 transitions, 4032 flow [2022-11-20 11:06:49,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:06:49,565 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;@67ac960f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:06:49,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2022-11-20 11:06:49,569 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-20 11:06:49,569 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:06:49,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:49,570 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] [2022-11-20 11:06:49,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2022-11-20 11:06:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1387514049, now seen corresponding path program 1 times [2022-11-20 11:06:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:49,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439186541] [2022-11-20 11:06:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:49,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:49,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:49,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439186541] [2022-11-20 11:06:49,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439186541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:49,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:49,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:06:49,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228031149] [2022-11-20 11:06:49,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:49,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:06:49,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:49,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:06:49,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:06:49,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1919 out of 2007 [2022-11-20 11:06:49,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1959 places, 2007 transitions, 4032 flow. Second operand has 4 states, 4 states have (on average 1920.25) internal successors, (7681), 4 states have internal predecessors, (7681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:49,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:49,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1919 of 2007 [2022-11-20 11:06:49,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand