./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:46:17,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:46:17,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:46:17,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:46:17,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:46:17,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:46:17,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:46:17,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:46:17,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:46:17,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:46:17,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:46:17,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:46:17,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:46:17,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:46:17,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:46:17,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:46:17,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:46:17,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:46:17,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:46:17,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:46:17,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:46:17,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:46:17,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:46:17,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:46:17,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:46:17,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:46:17,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:46:17,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:46:17,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:46:17,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:46:17,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:46:17,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:46:17,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:46:17,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:46:17,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:46:17,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:46:17,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:46:17,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:46:17,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:46:17,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:46:17,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:46:17,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:46:17,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:46:17,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:46:17,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:46:17,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:46:17,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:46:17,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:46:17,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:46:17,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:46:17,316 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:46:17,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:46:17,317 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:46:17,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:46:17,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:46:17,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:46:17,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:46:17,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:46:17,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:46:17,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:46:17,319 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:46:17,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:46:17,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:46:17,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:46:17,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:46:17,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:46:17,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:46:17,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:46:17,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:46:17,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:46:17,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:46:17,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:46:17,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:46:17,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:46:17,323 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:46:17,324 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:46:17,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:46:17,324 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_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 [2022-11-18 19:46:17,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:46:17,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:46:17,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:46:17,648 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:46:17,649 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:46:17,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2022-11-18 19:46:17,731 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/data/bb886e4f2/9b4e54f18fab4cd3b39bb3e1de4397a6/FLAG23582d231 [2022-11-18 19:46:18,424 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:46:18,425 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2022-11-18 19:46:18,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/data/bb886e4f2/9b4e54f18fab4cd3b39bb3e1de4397a6/FLAG23582d231 [2022-11-18 19:46:18,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/data/bb886e4f2/9b4e54f18fab4cd3b39bb3e1de4397a6 [2022-11-18 19:46:18,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:46:18,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:46:18,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:46:18,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:46:18,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:46:18,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:46:18" (1/1) ... [2022-11-18 19:46:18,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0fd2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:18, skipping insertion in model container [2022-11-18 19:46:18,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:46:18" (1/1) ... [2022-11-18 19:46:18,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:46:18,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:46:19,383 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i[41323,41336] [2022-11-18 19:46:19,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:46:19,429 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:46:19,464 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i[41323,41336] [2022-11-18 19:46:19,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:46:19,541 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:46:19,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19 WrapperNode [2022-11-18 19:46:19,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:46:19,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:46:19,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:46:19,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:46:19,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,618 INFO L138 Inliner]: procedures = 271, calls = 41, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 269 [2022-11-18 19:46:19,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:46:19,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:46:19,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:46:19,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:46:19,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,660 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:46:19,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:46:19,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:46:19,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:46:19,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (1/1) ... [2022-11-18 19:46:19,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:46:19,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:19,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:46:19,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:46:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:46:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:46:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:46:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:46:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:46:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:46:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:46:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:46:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:46:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:46:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:46:19,801 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:46:20,004 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:46:20,006 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:46:20,523 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:46:20,534 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:46:20,534 INFO L300 CfgBuilder]: Removed 35 assume(true) statements. [2022-11-18 19:46:20,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:20 BoogieIcfgContainer [2022-11-18 19:46:20,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:46:20,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:46:20,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:46:20,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:46:20,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:46:18" (1/3) ... [2022-11-18 19:46:20,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4e69db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:46:20, skipping insertion in model container [2022-11-18 19:46:20,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:19" (2/3) ... [2022-11-18 19:46:20,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4e69db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:46:20, skipping insertion in model container [2022-11-18 19:46:20,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:20" (3/3) ... [2022-11-18 19:46:20,547 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_72-funloop_hard_racing.i [2022-11-18 19:46:20,558 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:46:20,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:46:20,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-18 19:46:20,571 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:46:20,682 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 19:46:20,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 296 transitions, 600 flow [2022-11-18 19:46:20,918 INFO L130 PetriNetUnfolder]: 73/453 cut-off events. [2022-11-18 19:46:20,918 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:46:20,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 453 events. 73/453 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2194 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2022-11-18 19:46:20,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 296 transitions, 600 flow [2022-11-18 19:46:20,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 293 transitions, 594 flow [2022-11-18 19:46:20,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:46:20,972 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;@7d28afc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:46:20,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-18 19:46:20,980 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-18 19:46:20,980 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:46:20,985 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:20,986 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] [2022-11-18 19:46:20,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 19:46:20,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:20,994 INFO L85 PathProgramCache]: Analyzing trace with hash 845188103, now seen corresponding path program 1 times [2022-11-18 19:46:21,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:21,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276132967] [2022-11-18 19:46:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:21,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:21,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:21,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:21,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276132967] [2022-11-18 19:46:21,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276132967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:21,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:21,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:21,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925819886] [2022-11-18 19:46:21,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:21,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:21,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:21,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:21,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:21,584 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 19:46:21,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 293 transitions, 594 flow. Second operand has 4 states, 4 states have (on average 242.5) internal successors, (970), 4 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:21,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:21,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 19:46:21,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:21,768 INFO L130 PetriNetUnfolder]: 9/389 cut-off events. [2022-11-18 19:46:21,769 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 19:46:21,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 389 events. 9/389 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1762 event pairs, 0 based on Foata normal form. 62/402 useless extension candidates. Maximal degree in co-relation 210. Up to 15 conditions per place. [2022-11-18 19:46:21,776 INFO L137 encePairwiseOnDemand]: 251/296 looper letters, 17 selfloop transitions, 4 changer transitions 0/259 dead transitions. [2022-11-18 19:46:21,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 259 transitions, 568 flow [2022-11-18 19:46:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:21,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1268 transitions. [2022-11-18 19:46:21,806 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8567567567567568 [2022-11-18 19:46:21,808 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1268 transitions. [2022-11-18 19:46:21,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1268 transitions. [2022-11-18 19:46:21,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:21,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1268 transitions. [2022-11-18 19:46:21,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 253.6) internal successors, (1268), 5 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:21,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:21,844 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:21,847 INFO L175 Difference]: Start difference. First operand has 252 places, 293 transitions, 594 flow. Second operand 5 states and 1268 transitions. [2022-11-18 19:46:21,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 259 transitions, 568 flow [2022-11-18 19:46:21,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 259 transitions, 568 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:46:21,869 INFO L231 Difference]: Finished difference. Result has 256 places, 255 transitions, 544 flow [2022-11-18 19:46:21,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=544, PETRI_PLACES=256, PETRI_TRANSITIONS=255} [2022-11-18 19:46:21,879 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 4 predicate places. [2022-11-18 19:46:21,880 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 255 transitions, 544 flow [2022-11-18 19:46:21,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 242.5) internal successors, (970), 4 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:21,881 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:21,882 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:21,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:46:21,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 19:46:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash -685977515, now seen corresponding path program 1 times [2022-11-18 19:46:21,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:21,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519144118] [2022-11-18 19:46:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:21,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:46:22,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:22,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519144118] [2022-11-18 19:46:22,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519144118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:22,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:22,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:22,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094823249] [2022-11-18 19:46:22,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:22,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:22,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:22,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:22,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:22,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 19:46:22,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 255 transitions, 544 flow. Second operand has 4 states, 4 states have (on average 244.25) internal successors, (977), 4 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:22,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 19:46:22,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:22,236 INFO L130 PetriNetUnfolder]: 9/388 cut-off events. [2022-11-18 19:46:22,237 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 19:46:22,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 388 events. 9/388 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1756 event pairs, 0 based on Foata normal form. 1/343 useless extension candidates. Maximal degree in co-relation 378. Up to 7 conditions per place. [2022-11-18 19:46:22,243 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 9 selfloop transitions, 8 changer transitions 0/255 dead transitions. [2022-11-18 19:46:22,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 255 transitions, 576 flow [2022-11-18 19:46:22,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:22,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:22,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1220 transitions. [2022-11-18 19:46:22,249 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2022-11-18 19:46:22,249 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1220 transitions. [2022-11-18 19:46:22,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1220 transitions. [2022-11-18 19:46:22,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:22,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1220 transitions. [2022-11-18 19:46:22,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,261 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,262 INFO L175 Difference]: Start difference. First operand has 256 places, 255 transitions, 544 flow. Second operand 5 states and 1220 transitions. [2022-11-18 19:46:22,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 255 transitions, 576 flow [2022-11-18 19:46:22,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 255 transitions, 574 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:46:22,270 INFO L231 Difference]: Finished difference. Result has 259 places, 255 transitions, 562 flow [2022-11-18 19:46:22,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=562, PETRI_PLACES=259, PETRI_TRANSITIONS=255} [2022-11-18 19:46:22,272 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 7 predicate places. [2022-11-18 19:46:22,272 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 255 transitions, 562 flow [2022-11-18 19:46:22,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 244.25) internal successors, (977), 4 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,273 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:22,273 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:22,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:46:22,274 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 19:46:22,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:22,275 INFO L85 PathProgramCache]: Analyzing trace with hash 209534281, now seen corresponding path program 1 times [2022-11-18 19:46:22,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:22,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97637365] [2022-11-18 19:46:22,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:22,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:22,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:22,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:22,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97637365] [2022-11-18 19:46:22,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97637365] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:22,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61251878] [2022-11-18 19:46:22,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:22,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:22,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:22,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:22,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:46:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:22,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:46:22,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:22,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:22,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61251878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:22,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:22,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 19:46:22,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753646891] [2022-11-18 19:46:22,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:22,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:22,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:22,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:22,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:46:22,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 19:46:22,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 255 transitions, 562 flow. Second operand has 5 states, 5 states have (on average 243.8) internal successors, (1219), 5 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:22,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 19:46:22,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:22,866 INFO L130 PetriNetUnfolder]: 9/387 cut-off events. [2022-11-18 19:46:22,866 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 19:46:22,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 387 events. 9/387 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1749 event pairs, 0 based on Foata normal form. 1/342 useless extension candidates. Maximal degree in co-relation 376. Up to 10 conditions per place. [2022-11-18 19:46:22,872 INFO L137 encePairwiseOnDemand]: 292/296 looper letters, 11 selfloop transitions, 5 changer transitions 0/254 dead transitions. [2022-11-18 19:46:22,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 254 transitions, 590 flow [2022-11-18 19:46:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:46:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:46:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 977 transitions. [2022-11-18 19:46:22,876 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825168918918919 [2022-11-18 19:46:22,876 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 977 transitions. [2022-11-18 19:46:22,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 977 transitions. [2022-11-18 19:46:22,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:22,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 977 transitions. [2022-11-18 19:46:22,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 244.25) internal successors, (977), 4 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,886 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,886 INFO L175 Difference]: Start difference. First operand has 259 places, 255 transitions, 562 flow. Second operand 4 states and 977 transitions. [2022-11-18 19:46:22,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 254 transitions, 590 flow [2022-11-18 19:46:22,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 254 transitions, 578 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:22,893 INFO L231 Difference]: Finished difference. Result has 258 places, 254 transitions, 556 flow [2022-11-18 19:46:22,894 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=556, PETRI_PLACES=258, PETRI_TRANSITIONS=254} [2022-11-18 19:46:22,897 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 6 predicate places. [2022-11-18 19:46:22,897 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 254 transitions, 556 flow [2022-11-18 19:46:22,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 243.8) internal successors, (1219), 5 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:22,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:22,899 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:22,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:23,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:23,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 19:46:23,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:23,106 INFO L85 PathProgramCache]: Analyzing trace with hash -212299625, now seen corresponding path program 1 times [2022-11-18 19:46:23,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:23,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35460505] [2022-11-18 19:46:23,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:23,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:23,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:23,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:23,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35460505] [2022-11-18 19:46:23,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35460505] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:23,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044181616] [2022-11-18 19:46:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:23,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:23,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:23,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:23,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:46:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:23,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:46:23,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:23,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:23,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044181616] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:23,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:23,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 19:46:23,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324305394] [2022-11-18 19:46:23,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:23,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:46:23,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:23,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:46:23,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:46:23,546 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 19:46:23,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 254 transitions, 556 flow. Second operand has 10 states, 10 states have (on average 243.7) internal successors, (2437), 10 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:23,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:23,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 19:46:23,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:23,739 INFO L130 PetriNetUnfolder]: 9/395 cut-off events. [2022-11-18 19:46:23,740 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 19:46:23,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 395 events. 9/395 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1736 event pairs, 0 based on Foata normal form. 2/351 useless extension candidates. Maximal degree in co-relation 366. Up to 7 conditions per place. [2022-11-18 19:46:23,745 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 18 selfloop transitions, 9 changer transitions 0/265 dead transitions. [2022-11-18 19:46:23,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 265 transitions, 648 flow [2022-11-18 19:46:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:46:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:46:23,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2198 transitions. [2022-11-18 19:46:23,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825075075075075 [2022-11-18 19:46:23,751 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2198 transitions. [2022-11-18 19:46:23,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2198 transitions. [2022-11-18 19:46:23,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:23,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2198 transitions. [2022-11-18 19:46:23,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 244.22222222222223) internal successors, (2198), 9 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:23,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 296.0) internal successors, (2960), 10 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:23,767 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 296.0) internal successors, (2960), 10 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:23,768 INFO L175 Difference]: Start difference. First operand has 258 places, 254 transitions, 556 flow. Second operand 9 states and 2198 transitions. [2022-11-18 19:46:23,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 265 transitions, 648 flow [2022-11-18 19:46:23,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 265 transitions, 634 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:23,775 INFO L231 Difference]: Finished difference. Result has 267 places, 258 transitions, 602 flow [2022-11-18 19:46:23,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=602, PETRI_PLACES=267, PETRI_TRANSITIONS=258} [2022-11-18 19:46:23,777 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 15 predicate places. [2022-11-18 19:46:23,777 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 258 transitions, 602 flow [2022-11-18 19:46:23,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 243.7) internal successors, (2437), 10 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:23,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:23,779 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:23,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:23,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:23,987 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 19:46:23,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1291795671, now seen corresponding path program 2 times [2022-11-18 19:46:23,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:23,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925836004] [2022-11-18 19:46:23,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:23,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 19:46:24,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:24,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925836004] [2022-11-18 19:46:24,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925836004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:24,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:24,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:24,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794276853] [2022-11-18 19:46:24,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:24,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:24,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:24,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:24,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:24,203 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 19:46:24,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 258 transitions, 602 flow. Second operand has 4 states, 4 states have (on average 242.75) internal successors, (971), 4 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:24,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:24,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 19:46:24,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:24,344 INFO L130 PetriNetUnfolder]: 6/267 cut-off events. [2022-11-18 19:46:24,345 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-18 19:46:24,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 267 events. 6/267 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 811 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 250. Up to 7 conditions per place. [2022-11-18 19:46:24,349 INFO L137 encePairwiseOnDemand]: 289/296 looper letters, 10 selfloop transitions, 4 changer transitions 0/258 dead transitions. [2022-11-18 19:46:24,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 258 transitions, 630 flow [2022-11-18 19:46:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:24,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1222 transitions. [2022-11-18 19:46:24,354 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256756756756757 [2022-11-18 19:46:24,355 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1222 transitions. [2022-11-18 19:46:24,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1222 transitions. [2022-11-18 19:46:24,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:24,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1222 transitions. [2022-11-18 19:46:24,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:24,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:24,363 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:24,363 INFO L175 Difference]: Start difference. First operand has 267 places, 258 transitions, 602 flow. Second operand 5 states and 1222 transitions. [2022-11-18 19:46:24,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 258 transitions, 630 flow [2022-11-18 19:46:24,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 258 transitions, 614 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 19:46:24,373 INFO L231 Difference]: Finished difference. Result has 266 places, 256 transitions, 594 flow [2022-11-18 19:46:24,374 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=594, PETRI_PLACES=266, PETRI_TRANSITIONS=256} [2022-11-18 19:46:24,378 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 14 predicate places. [2022-11-18 19:46:24,378 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 256 transitions, 594 flow [2022-11-18 19:46:24,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 242.75) internal successors, (971), 4 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:24,379 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:24,379 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:24,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:46:24,380 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 19:46:24,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:24,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1301276799, now seen corresponding path program 1 times [2022-11-18 19:46:24,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:24,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710141957] [2022-11-18 19:46:24,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:24,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 19:46:24,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:24,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710141957] [2022-11-18 19:46:24,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710141957] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:24,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479324807] [2022-11-18 19:46:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:24,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:24,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:24,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:24,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:46:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:24,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:46:24,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 19:46:24,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 19:46:24,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479324807] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:24,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:24,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 19:46:24,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008058781] [2022-11-18 19:46:24,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:24,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:46:24,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:24,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:46:24,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:46:24,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 19:46:24,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 256 transitions, 594 flow. Second operand has 18 states, 18 states have (on average 244.05555555555554) internal successors, (4393), 18 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:24,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:24,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 19:46:24,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:25,316 INFO L130 PetriNetUnfolder]: 6/295 cut-off events. [2022-11-18 19:46:25,316 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-18 19:46:25,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 295 events. 6/295 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 812 event pairs, 0 based on Foata normal form. 4/273 useless extension candidates. Maximal degree in co-relation 243. Up to 9 conditions per place. [2022-11-18 19:46:25,320 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 34 selfloop transitions, 21 changer transitions 0/291 dead transitions. [2022-11-18 19:46:25,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 291 transitions, 858 flow [2022-11-18 19:46:25,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:46:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:46:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5120 transitions. [2022-11-18 19:46:25,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8236808236808236 [2022-11-18 19:46:25,331 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5120 transitions. [2022-11-18 19:46:25,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5120 transitions. [2022-11-18 19:46:25,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:25,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5120 transitions. [2022-11-18 19:46:25,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 243.8095238095238) internal successors, (5120), 21 states have internal predecessors, (5120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:25,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 296.0) internal successors, (6512), 22 states have internal predecessors, (6512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:25,363 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 296.0) internal successors, (6512), 22 states have internal predecessors, (6512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:25,363 INFO L175 Difference]: Start difference. First operand has 266 places, 256 transitions, 594 flow. Second operand 21 states and 5120 transitions. [2022-11-18 19:46:25,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 291 transitions, 858 flow [2022-11-18 19:46:25,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 291 transitions, 850 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:46:25,372 INFO L231 Difference]: Finished difference. Result has 287 places, 269 transitions, 742 flow [2022-11-18 19:46:25,373 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=742, PETRI_PLACES=287, PETRI_TRANSITIONS=269} [2022-11-18 19:46:25,376 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 35 predicate places. [2022-11-18 19:46:25,376 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 269 transitions, 742 flow [2022-11-18 19:46:25,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 244.05555555555554) internal successors, (4393), 18 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:25,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:25,397 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 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] [2022-11-18 19:46:25,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:25,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:25,615 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 19:46:25,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:25,615 INFO L85 PathProgramCache]: Analyzing trace with hash -792104705, now seen corresponding path program 2 times [2022-11-18 19:46:25,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:25,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947214824] [2022-11-18 19:46:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:25,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 19:46:26,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:26,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947214824] [2022-11-18 19:46:26,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947214824] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:26,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319480434] [2022-11-18 19:46:26,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:46:26,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:26,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:26,213 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:26,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:46:26,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:46:26,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:26,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:46:26,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 19:46:26,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 19:46:26,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319480434] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:26,912 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:26,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 19:46:26,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518888747] [2022-11-18 19:46:26,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:26,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:46:26,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:26,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:46:26,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:46:26,922 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 19:46:26,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 269 transitions, 742 flow. Second operand has 23 states, 23 states have (on average 244.30434782608697) internal successors, (5619), 23 states have internal predecessors, (5619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:26,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:26,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 19:46:26,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:27,540 INFO L130 PetriNetUnfolder]: 6/316 cut-off events. [2022-11-18 19:46:27,541 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2022-11-18 19:46:27,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 316 events. 6/316 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 813 event pairs, 0 based on Foata normal form. 3/293 useless extension candidates. Maximal degree in co-relation 334. Up to 12 conditions per place. [2022-11-18 19:46:27,550 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 46 selfloop transitions, 30 changer transitions 0/312 dead transitions. [2022-11-18 19:46:27,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 312 transitions, 1104 flow [2022-11-18 19:46:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 19:46:27,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 19:46:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7309 transitions. [2022-11-18 19:46:27,606 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8230855855855855 [2022-11-18 19:46:27,606 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7309 transitions. [2022-11-18 19:46:27,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7309 transitions. [2022-11-18 19:46:27,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:27,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7309 transitions. [2022-11-18 19:46:27,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 243.63333333333333) internal successors, (7309), 30 states have internal predecessors, (7309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:27,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 296.0) internal successors, (9176), 31 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:27,648 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 296.0) internal successors, (9176), 31 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:27,649 INFO L175 Difference]: Start difference. First operand has 287 places, 269 transitions, 742 flow. Second operand 30 states and 7309 transitions. [2022-11-18 19:46:27,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 312 transitions, 1104 flow [2022-11-18 19:46:27,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 312 transitions, 1024 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-18 19:46:27,659 INFO L231 Difference]: Finished difference. Result has 312 places, 279 transitions, 840 flow [2022-11-18 19:46:27,660 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=840, PETRI_PLACES=312, PETRI_TRANSITIONS=279} [2022-11-18 19:46:27,660 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 60 predicate places. [2022-11-18 19:46:27,661 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 279 transitions, 840 flow [2022-11-18 19:46:27,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 244.30434782608697) internal successors, (5619), 23 states have internal predecessors, (5619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:27,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:27,663 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 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] [2022-11-18 19:46:27,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:27,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 19:46:27,870 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 19:46:27,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:27,870 INFO L85 PathProgramCache]: Analyzing trace with hash -62847603, now seen corresponding path program 3 times [2022-11-18 19:46:27,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:27,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367361318] [2022-11-18 19:46:27,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:27,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:46:27,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:46:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:46:27,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:46:27,973 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:46:27,974 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2022-11-18 19:46:27,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2022-11-18 19:46:27,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2022-11-18 19:46:27,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2022-11-18 19:46:27,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2022-11-18 19:46:27,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2022-11-18 19:46:27,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2022-11-18 19:46:27,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2022-11-18 19:46:27,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2022-11-18 19:46:27,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2022-11-18 19:46:27,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2022-11-18 19:46:27,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2022-11-18 19:46:27,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2022-11-18 19:46:27,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2022-11-18 19:46:27,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2022-11-18 19:46:27,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2022-11-18 19:46:27,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2022-11-18 19:46:27,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2022-11-18 19:46:27,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2022-11-18 19:46:27,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2022-11-18 19:46:27,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2022-11-18 19:46:27,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2022-11-18 19:46:27,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2022-11-18 19:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2022-11-18 19:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2022-11-18 19:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2022-11-18 19:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2022-11-18 19:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2022-11-18 19:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2022-11-18 19:46:27,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:46:27,990 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2022-11-18 19:46:27,993 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 19:46:27,993 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 19:46:28,061 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:46:28,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 380 transitions, 778 flow [2022-11-18 19:46:28,218 INFO L130 PetriNetUnfolder]: 118/731 cut-off events. [2022-11-18 19:46:28,218 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 19:46:28,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 731 events. 118/731 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3938 event pairs, 0 based on Foata normal form. 0/555 useless extension candidates. Maximal degree in co-relation 455. Up to 12 conditions per place. [2022-11-18 19:46:28,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 380 transitions, 778 flow [2022-11-18 19:46:28,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 325 places, 380 transitions, 778 flow [2022-11-18 19:46:28,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:46:28,252 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;@7d28afc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:46:28,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-18 19:46:28,256 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-18 19:46:28,256 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:46:28,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:28,257 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] [2022-11-18 19:46:28,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:28,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:28,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1913492483, now seen corresponding path program 1 times [2022-11-18 19:46:28,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:28,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937252096] [2022-11-18 19:46:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:28,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:28,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937252096] [2022-11-18 19:46:28,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937252096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:28,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:28,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:28,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640573319] [2022-11-18 19:46:28,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:28,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:28,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:28,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:28,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:28,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 380 transitions, 778 flow. Second operand has 4 states, 4 states have (on average 311.5) internal successors, (1246), 4 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:28,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:28,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:28,540 INFO L130 PetriNetUnfolder]: 17/629 cut-off events. [2022-11-18 19:46:28,540 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-18 19:46:28,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 629 events. 17/629 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3350 event pairs, 0 based on Foata normal form. 126/672 useless extension candidates. Maximal degree in co-relation 415. Up to 19 conditions per place. [2022-11-18 19:46:28,554 INFO L137 encePairwiseOnDemand]: 323/380 looper letters, 19 selfloop transitions, 4 changer transitions 0/333 dead transitions. [2022-11-18 19:46:28,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 333 transitions, 730 flow [2022-11-18 19:46:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1627 transitions. [2022-11-18 19:46:28,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8563157894736843 [2022-11-18 19:46:28,560 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1627 transitions. [2022-11-18 19:46:28,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1627 transitions. [2022-11-18 19:46:28,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:28,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1627 transitions. [2022-11-18 19:46:28,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 325.4) internal successors, (1627), 5 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,570 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,570 INFO L175 Difference]: Start difference. First operand has 325 places, 380 transitions, 778 flow. Second operand 5 states and 1627 transitions. [2022-11-18 19:46:28,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 333 transitions, 730 flow [2022-11-18 19:46:28,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 333 transitions, 730 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:46:28,578 INFO L231 Difference]: Finished difference. Result has 328 places, 329 transitions, 702 flow [2022-11-18 19:46:28,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=702, PETRI_PLACES=328, PETRI_TRANSITIONS=329} [2022-11-18 19:46:28,582 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 3 predicate places. [2022-11-18 19:46:28,582 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 329 transitions, 702 flow [2022-11-18 19:46:28,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 311.5) internal successors, (1246), 4 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,583 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:28,583 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:28,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:46:28,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:28,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:28,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1736378411, now seen corresponding path program 1 times [2022-11-18 19:46:28,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:28,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674021122] [2022-11-18 19:46:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:28,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:46:28,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:28,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674021122] [2022-11-18 19:46:28,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674021122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:28,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:28,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:28,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188334352] [2022-11-18 19:46:28,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:28,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:28,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:28,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:28,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:28,639 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:28,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 329 transitions, 702 flow. Second operand has 4 states, 4 states have (on average 313.25) internal successors, (1253), 4 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:28,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:28,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:28,845 INFO L130 PetriNetUnfolder]: 17/628 cut-off events. [2022-11-18 19:46:28,845 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 19:46:28,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 628 events. 17/628 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3351 event pairs, 0 based on Foata normal form. 1/549 useless extension candidates. Maximal degree in co-relation 629. Up to 11 conditions per place. [2022-11-18 19:46:28,856 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 11 selfloop transitions, 8 changer transitions 0/329 dead transitions. [2022-11-18 19:46:28,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 329 transitions, 738 flow [2022-11-18 19:46:28,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:28,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1567 transitions. [2022-11-18 19:46:28,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8247368421052632 [2022-11-18 19:46:28,862 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1567 transitions. [2022-11-18 19:46:28,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1567 transitions. [2022-11-18 19:46:28,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:28,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1567 transitions. [2022-11-18 19:46:28,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.4) internal successors, (1567), 5 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,872 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,873 INFO L175 Difference]: Start difference. First operand has 328 places, 329 transitions, 702 flow. Second operand 5 states and 1567 transitions. [2022-11-18 19:46:28,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 329 transitions, 738 flow [2022-11-18 19:46:28,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 329 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:46:28,881 INFO L231 Difference]: Finished difference. Result has 331 places, 329 transitions, 720 flow [2022-11-18 19:46:28,882 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=720, PETRI_PLACES=331, PETRI_TRANSITIONS=329} [2022-11-18 19:46:28,883 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 6 predicate places. [2022-11-18 19:46:28,883 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 329 transitions, 720 flow [2022-11-18 19:46:28,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 313.25) internal successors, (1253), 4 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:28,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:28,884 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:28,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:46:28,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:28,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:28,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2006845253, now seen corresponding path program 1 times [2022-11-18 19:46:28,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:28,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862988313] [2022-11-18 19:46:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:28,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:28,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:28,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862988313] [2022-11-18 19:46:28,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862988313] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:28,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152305918] [2022-11-18 19:46:28,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:28,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:28,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:28,969 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:28,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:46:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:29,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:46:29,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:29,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:29,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152305918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:29,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:29,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 19:46:29,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3487532] [2022-11-18 19:46:29,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:29,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:29,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:29,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:46:29,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:29,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 329 transitions, 720 flow. Second operand has 5 states, 5 states have (on average 312.8) internal successors, (1564), 5 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:29,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:29,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:29,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:29,311 INFO L130 PetriNetUnfolder]: 17/627 cut-off events. [2022-11-18 19:46:29,311 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-11-18 19:46:29,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 627 events. 17/627 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3337 event pairs, 0 based on Foata normal form. 1/548 useless extension candidates. Maximal degree in co-relation 627. Up to 14 conditions per place. [2022-11-18 19:46:29,325 INFO L137 encePairwiseOnDemand]: 376/380 looper letters, 13 selfloop transitions, 5 changer transitions 0/328 dead transitions. [2022-11-18 19:46:29,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 328 transitions, 752 flow [2022-11-18 19:46:29,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:46:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:46:29,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1255 transitions. [2022-11-18 19:46:29,329 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256578947368421 [2022-11-18 19:46:29,329 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1255 transitions. [2022-11-18 19:46:29,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1255 transitions. [2022-11-18 19:46:29,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:29,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1255 transitions. [2022-11-18 19:46:29,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:29,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:29,338 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:29,338 INFO L175 Difference]: Start difference. First operand has 331 places, 329 transitions, 720 flow. Second operand 4 states and 1255 transitions. [2022-11-18 19:46:29,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 328 transitions, 752 flow [2022-11-18 19:46:29,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 328 transitions, 740 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:29,346 INFO L231 Difference]: Finished difference. Result has 330 places, 328 transitions, 714 flow [2022-11-18 19:46:29,346 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=714, PETRI_PLACES=330, PETRI_TRANSITIONS=328} [2022-11-18 19:46:29,347 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 5 predicate places. [2022-11-18 19:46:29,347 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 328 transitions, 714 flow [2022-11-18 19:46:29,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 312.8) internal successors, (1564), 5 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:29,348 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:29,349 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:29,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:29,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 19:46:29,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:29,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:29,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1200530405, now seen corresponding path program 1 times [2022-11-18 19:46:29,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:29,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086083320] [2022-11-18 19:46:29,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:29,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:29,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:29,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086083320] [2022-11-18 19:46:29,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086083320] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:29,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136930371] [2022-11-18 19:46:29,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:29,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:29,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:29,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:29,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:46:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:29,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:46:29,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:29,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:29,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136930371] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:29,826 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:29,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 19:46:29,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009103729] [2022-11-18 19:46:29,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:29,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:46:29,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:29,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:46:29,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:46:29,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:29,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 328 transitions, 714 flow. Second operand has 10 states, 10 states have (on average 312.7) internal successors, (3127), 10 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:29,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:29,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:29,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:30,083 INFO L130 PetriNetUnfolder]: 17/635 cut-off events. [2022-11-18 19:46:30,083 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-18 19:46:30,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 635 events. 17/635 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3323 event pairs, 0 based on Foata normal form. 2/557 useless extension candidates. Maximal degree in co-relation 617. Up to 11 conditions per place. [2022-11-18 19:46:30,097 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 20 selfloop transitions, 9 changer transitions 0/339 dead transitions. [2022-11-18 19:46:30,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 339 transitions, 810 flow [2022-11-18 19:46:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:46:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:46:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2821 transitions. [2022-11-18 19:46:30,105 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8248538011695906 [2022-11-18 19:46:30,105 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2821 transitions. [2022-11-18 19:46:30,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2821 transitions. [2022-11-18 19:46:30,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:30,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2821 transitions. [2022-11-18 19:46:30,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 313.44444444444446) internal successors, (2821), 9 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,123 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,123 INFO L175 Difference]: Start difference. First operand has 330 places, 328 transitions, 714 flow. Second operand 9 states and 2821 transitions. [2022-11-18 19:46:30,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 339 transitions, 810 flow [2022-11-18 19:46:30,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 339 transitions, 796 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:30,132 INFO L231 Difference]: Finished difference. Result has 339 places, 332 transitions, 760 flow [2022-11-18 19:46:30,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=760, PETRI_PLACES=339, PETRI_TRANSITIONS=332} [2022-11-18 19:46:30,133 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 14 predicate places. [2022-11-18 19:46:30,133 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 332 transitions, 760 flow [2022-11-18 19:46:30,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 312.7) internal successors, (3127), 10 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:30,135 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:30,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:30,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 19:46:30,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:30,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:30,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1612147803, now seen corresponding path program 2 times [2022-11-18 19:46:30,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:30,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886485190] [2022-11-18 19:46:30,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:30,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 19:46:30,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:30,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886485190] [2022-11-18 19:46:30,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886485190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:30,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:30,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:30,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681690600] [2022-11-18 19:46:30,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:30,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:30,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:30,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:30,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:30,413 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:30,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 332 transitions, 760 flow. Second operand has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:30,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:30,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:30,601 INFO L130 PetriNetUnfolder]: 13/516 cut-off events. [2022-11-18 19:46:30,602 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-18 19:46:30,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 516 events. 13/516 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2446 event pairs, 0 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 520. Up to 21 conditions per place. [2022-11-18 19:46:30,613 INFO L137 encePairwiseOnDemand]: 373/380 looper letters, 19 selfloop transitions, 4 changer transitions 0/339 dead transitions. [2022-11-18 19:46:30,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 339 transitions, 820 flow [2022-11-18 19:46:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1576 transitions. [2022-11-18 19:46:30,617 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8294736842105264 [2022-11-18 19:46:30,617 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1576 transitions. [2022-11-18 19:46:30,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1576 transitions. [2022-11-18 19:46:30,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:30,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1576 transitions. [2022-11-18 19:46:30,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 315.2) internal successors, (1576), 5 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,626 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,626 INFO L175 Difference]: Start difference. First operand has 339 places, 332 transitions, 760 flow. Second operand 5 states and 1576 transitions. [2022-11-18 19:46:30,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 339 transitions, 820 flow [2022-11-18 19:46:30,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 339 transitions, 804 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 19:46:30,634 INFO L231 Difference]: Finished difference. Result has 342 places, 335 transitions, 776 flow [2022-11-18 19:46:30,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=776, PETRI_PLACES=342, PETRI_TRANSITIONS=335} [2022-11-18 19:46:30,635 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 17 predicate places. [2022-11-18 19:46:30,635 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 335 transitions, 776 flow [2022-11-18 19:46:30,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:30,637 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-18 19:46:30,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:46:30,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:30,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1725951910, now seen corresponding path program 1 times [2022-11-18 19:46:30,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:30,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372576076] [2022-11-18 19:46:30,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:30,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 19:46:30,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:30,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372576076] [2022-11-18 19:46:30,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372576076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:30,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:30,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:30,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436736905] [2022-11-18 19:46:30,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:30,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:30,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:30,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:30,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:30,709 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:30,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 335 transitions, 776 flow. Second operand has 4 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:30,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:30,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:30,882 INFO L130 PetriNetUnfolder]: 13/515 cut-off events. [2022-11-18 19:46:30,882 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-11-18 19:46:30,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 515 events. 13/515 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2447 event pairs, 0 based on Foata normal form. 1/458 useless extension candidates. Maximal degree in co-relation 527. Up to 10 conditions per place. [2022-11-18 19:46:30,897 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 11 selfloop transitions, 8 changer transitions 0/335 dead transitions. [2022-11-18 19:46:30,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 335 transitions, 812 flow [2022-11-18 19:46:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:30,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:30,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1567 transitions. [2022-11-18 19:46:30,901 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8247368421052632 [2022-11-18 19:46:30,901 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1567 transitions. [2022-11-18 19:46:30,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1567 transitions. [2022-11-18 19:46:30,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:30,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1567 transitions. [2022-11-18 19:46:30,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.4) internal successors, (1567), 5 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,911 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,911 INFO L175 Difference]: Start difference. First operand has 342 places, 335 transitions, 776 flow. Second operand 5 states and 1567 transitions. [2022-11-18 19:46:30,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 335 transitions, 812 flow [2022-11-18 19:46:30,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 335 transitions, 810 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:46:30,920 INFO L231 Difference]: Finished difference. Result has 345 places, 335 transitions, 794 flow [2022-11-18 19:46:30,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=794, PETRI_PLACES=345, PETRI_TRANSITIONS=335} [2022-11-18 19:46:30,921 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 20 predicate places. [2022-11-18 19:46:30,922 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 335 transitions, 794 flow [2022-11-18 19:46:30,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:30,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:30,923 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-18 19:46:30,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:46:30,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:30,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:30,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1964902600, now seen corresponding path program 1 times [2022-11-18 19:46:30,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:30,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943068013] [2022-11-18 19:46:30,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:30,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:31,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:31,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943068013] [2022-11-18 19:46:31,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943068013] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:31,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126980539] [2022-11-18 19:46:31,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:31,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:31,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:31,081 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:31,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:46:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:31,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:46:31,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:31,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:31,448 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:31,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126980539] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:31,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:31,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 19:46:31,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24070559] [2022-11-18 19:46:31,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:31,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:46:31,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:31,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:46:31,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:46:31,458 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:31,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 335 transitions, 794 flow. Second operand has 18 states, 18 states have (on average 313.1111111111111) internal successors, (5636), 18 states have internal predecessors, (5636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:31,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:31,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:31,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:31,904 INFO L130 PetriNetUnfolder]: 13/543 cut-off events. [2022-11-18 19:46:31,904 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-11-18 19:46:31,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 543 events. 13/543 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2440 event pairs, 0 based on Foata normal form. 4/489 useless extension candidates. Maximal degree in co-relation 521. Up to 11 conditions per place. [2022-11-18 19:46:31,919 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 36 selfloop transitions, 21 changer transitions 0/370 dead transitions. [2022-11-18 19:46:31,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 370 transitions, 1062 flow [2022-11-18 19:46:31,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:46:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:46:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6571 transitions. [2022-11-18 19:46:31,931 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8234335839598997 [2022-11-18 19:46:31,932 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6571 transitions. [2022-11-18 19:46:31,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6571 transitions. [2022-11-18 19:46:31,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:31,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6571 transitions. [2022-11-18 19:46:31,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 312.9047619047619) internal successors, (6571), 21 states have internal predecessors, (6571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:31,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 380.0) internal successors, (8360), 22 states have internal predecessors, (8360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:31,966 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 380.0) internal successors, (8360), 22 states have internal predecessors, (8360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:31,966 INFO L175 Difference]: Start difference. First operand has 345 places, 335 transitions, 794 flow. Second operand 21 states and 6571 transitions. [2022-11-18 19:46:31,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 370 transitions, 1062 flow [2022-11-18 19:46:31,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 370 transitions, 1050 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:31,976 INFO L231 Difference]: Finished difference. Result has 367 places, 348 transitions, 938 flow [2022-11-18 19:46:31,977 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=938, PETRI_PLACES=367, PETRI_TRANSITIONS=348} [2022-11-18 19:46:31,978 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 42 predicate places. [2022-11-18 19:46:31,978 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 348 transitions, 938 flow [2022-11-18 19:46:31,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 313.1111111111111) internal successors, (5636), 18 states have internal predecessors, (5636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:31,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:31,981 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 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] [2022-11-18 19:46:31,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:32,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 19:46:32,188 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:32,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:32,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1743582904, now seen corresponding path program 2 times [2022-11-18 19:46:32,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:32,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739258475] [2022-11-18 19:46:32,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:32,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:32,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:32,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739258475] [2022-11-18 19:46:32,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739258475] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:32,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583074556] [2022-11-18 19:46:32,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:46:32,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:32,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:32,568 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:32,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:46:32,729 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:46:32,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:32,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:46:32,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:32,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:33,125 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:33,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583074556] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:33,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:33,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 19:46:33,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574596496] [2022-11-18 19:46:33,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:33,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:46:33,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:33,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:46:33,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:46:33,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:33,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 348 transitions, 938 flow. Second operand has 23 states, 23 states have (on average 313.3478260869565) internal successors, (7207), 23 states have internal predecessors, (7207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:33,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:33,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:33,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:33,703 INFO L130 PetriNetUnfolder]: 13/564 cut-off events. [2022-11-18 19:46:33,703 INFO L131 PetriNetUnfolder]: For 241/241 co-relation queries the response was YES. [2022-11-18 19:46:33,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 564 events. 13/564 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2440 event pairs, 0 based on Foata normal form. 3/509 useless extension candidates. Maximal degree in co-relation 575. Up to 12 conditions per place. [2022-11-18 19:46:33,715 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 48 selfloop transitions, 30 changer transitions 0/391 dead transitions. [2022-11-18 19:46:33,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 391 transitions, 1304 flow [2022-11-18 19:46:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 19:46:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 19:46:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9381 transitions. [2022-11-18 19:46:33,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8228947368421052 [2022-11-18 19:46:33,733 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 9381 transitions. [2022-11-18 19:46:33,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 9381 transitions. [2022-11-18 19:46:33,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:33,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 9381 transitions. [2022-11-18 19:46:33,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 312.7) internal successors, (9381), 30 states have internal predecessors, (9381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:33,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 380.0) internal successors, (11780), 31 states have internal predecessors, (11780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:33,786 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 380.0) internal successors, (11780), 31 states have internal predecessors, (11780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:33,787 INFO L175 Difference]: Start difference. First operand has 367 places, 348 transitions, 938 flow. Second operand 30 states and 9381 transitions. [2022-11-18 19:46:33,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 391 transitions, 1304 flow [2022-11-18 19:46:33,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 391 transitions, 1224 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-18 19:46:33,797 INFO L231 Difference]: Finished difference. Result has 392 places, 358 transitions, 1036 flow [2022-11-18 19:46:33,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1036, PETRI_PLACES=392, PETRI_TRANSITIONS=358} [2022-11-18 19:46:33,799 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 67 predicate places. [2022-11-18 19:46:33,800 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 358 transitions, 1036 flow [2022-11-18 19:46:33,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 313.3478260869565) internal successors, (7207), 23 states have internal predecessors, (7207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:33,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:33,802 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 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] [2022-11-18 19:46:33,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:34,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:34,020 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:34,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1305508618, now seen corresponding path program 3 times [2022-11-18 19:46:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:34,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759989190] [2022-11-18 19:46:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:34,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:46:34,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:34,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759989190] [2022-11-18 19:46:34,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759989190] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:34,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640012317] [2022-11-18 19:46:34,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:46:34,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:34,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:34,189 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:34,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:46:34,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:46:34,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:34,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:46:34,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:34,406 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:46:34,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:34,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640012317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:34,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:34,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 19:46:34,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770376500] [2022-11-18 19:46:34,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:34,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:34,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:34,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:34,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:46:34,411 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 19:46:34,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 358 transitions, 1036 flow. Second operand has 5 states, 5 states have (on average 313.2) internal successors, (1566), 5 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:34,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:34,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 19:46:34,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:34,656 INFO L130 PetriNetUnfolder]: 13/563 cut-off events. [2022-11-18 19:46:34,656 INFO L131 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2022-11-18 19:46:34,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 563 events. 13/563 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2437 event pairs, 0 based on Foata normal form. 1/506 useless extension candidates. Maximal degree in co-relation 536. Up to 17 conditions per place. [2022-11-18 19:46:34,673 INFO L137 encePairwiseOnDemand]: 376/380 looper letters, 13 selfloop transitions, 5 changer transitions 0/357 dead transitions. [2022-11-18 19:46:34,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 357 transitions, 1068 flow [2022-11-18 19:46:34,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:46:34,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:46:34,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1255 transitions. [2022-11-18 19:46:34,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256578947368421 [2022-11-18 19:46:34,676 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1255 transitions. [2022-11-18 19:46:34,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1255 transitions. [2022-11-18 19:46:34,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:34,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1255 transitions. [2022-11-18 19:46:34,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:34,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:34,685 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:34,685 INFO L175 Difference]: Start difference. First operand has 392 places, 358 transitions, 1036 flow. Second operand 4 states and 1255 transitions. [2022-11-18 19:46:34,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 357 transitions, 1068 flow [2022-11-18 19:46:34,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 357 transitions, 1022 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 19:46:34,696 INFO L231 Difference]: Finished difference. Result has 376 places, 357 transitions, 996 flow [2022-11-18 19:46:34,697 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=996, PETRI_PLACES=376, PETRI_TRANSITIONS=357} [2022-11-18 19:46:34,697 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 51 predicate places. [2022-11-18 19:46:34,698 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 357 transitions, 996 flow [2022-11-18 19:46:34,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 313.2) internal successors, (1566), 5 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:34,698 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:34,699 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:34,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:34,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 19:46:34,915 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:34,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:34,916 INFO L85 PathProgramCache]: Analyzing trace with hash -630712475, now seen corresponding path program 1 times [2022-11-18 19:46:34,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:34,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503962267] [2022-11-18 19:46:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:34,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:46:35,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:35,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503962267] [2022-11-18 19:46:35,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503962267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:35,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:35,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:46:35,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786214558] [2022-11-18 19:46:35,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:35,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:46:35,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:35,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:46:35,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:46:35,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 380 [2022-11-18 19:46:35,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 357 transitions, 996 flow. Second operand has 11 states, 11 states have (on average 267.3636363636364) internal successors, (2941), 11 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:35,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:35,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 380 [2022-11-18 19:46:35,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:46,732 INFO L130 PetriNetUnfolder]: 12171/46062 cut-off events. [2022-11-18 19:46:46,732 INFO L131 PetriNetUnfolder]: For 782/793 co-relation queries the response was YES. [2022-11-18 19:46:47,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64256 conditions, 46062 events. 12171/46062 cut-off events. For 782/793 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 645557 event pairs, 2111 based on Foata normal form. 1/40203 useless extension candidates. Maximal degree in co-relation 63989. Up to 9013 conditions per place. [2022-11-18 19:46:47,305 INFO L137 encePairwiseOnDemand]: 360/380 looper letters, 342 selfloop transitions, 71 changer transitions 0/709 dead transitions. [2022-11-18 19:46:47,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 709 transitions, 2607 flow [2022-11-18 19:46:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 19:46:47,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-18 19:46:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6785 transitions. [2022-11-18 19:46:47,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7439692982456141 [2022-11-18 19:46:47,317 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6785 transitions. [2022-11-18 19:46:47,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6785 transitions. [2022-11-18 19:46:47,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:47,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6785 transitions. [2022-11-18 19:46:47,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 282.7083333333333) internal successors, (6785), 24 states have internal predecessors, (6785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:47,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 380.0) internal successors, (9500), 25 states have internal predecessors, (9500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:47,351 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 380.0) internal successors, (9500), 25 states have internal predecessors, (9500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:47,351 INFO L175 Difference]: Start difference. First operand has 376 places, 357 transitions, 996 flow. Second operand 24 states and 6785 transitions. [2022-11-18 19:46:47,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 709 transitions, 2607 flow [2022-11-18 19:46:47,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 709 transitions, 2597 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:47,373 INFO L231 Difference]: Finished difference. Result has 414 places, 443 transitions, 1554 flow [2022-11-18 19:46:47,374 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1554, PETRI_PLACES=414, PETRI_TRANSITIONS=443} [2022-11-18 19:46:47,374 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 89 predicate places. [2022-11-18 19:46:47,374 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 443 transitions, 1554 flow [2022-11-18 19:46:47,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 267.3636363636364) internal successors, (2941), 11 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:47,376 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:47,376 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:47,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:46:47,377 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:47,377 INFO L85 PathProgramCache]: Analyzing trace with hash -954203115, now seen corresponding path program 1 times [2022-11-18 19:46:47,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:47,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067093374] [2022-11-18 19:46:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:47,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:46:47,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:47,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067093374] [2022-11-18 19:46:47,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067093374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:47,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229406780] [2022-11-18 19:46:47,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:47,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:47,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:47,507 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:47,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 19:46:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:47,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:46:47,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-11-18 19:46:47,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:47,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229406780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:47,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:47,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-18 19:46:47,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612454788] [2022-11-18 19:46:47,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:47,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:46:47,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:47,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:46:47,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:46:47,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 380 [2022-11-18 19:46:47,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 443 transitions, 1554 flow. Second operand has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:47,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:47,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 380 [2022-11-18 19:46:47,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:49,235 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1318] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_7| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of2ForFork0_thidvar0_4) InVars {t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} AuxVars[] AssignedVars[][383], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, t_funThread1of2ForFork0NotInUse, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), t_funThread2of2ForFork0NotInUse, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 19:46:49,235 INFO L383 tUnfolder$Statistics]: this new event has 225 ancestors and is cut-off event [2022-11-18 19:46:49,245 INFO L386 tUnfolder$Statistics]: existing Event has 213 ancestors and is cut-off event [2022-11-18 19:46:49,245 INFO L386 tUnfolder$Statistics]: existing Event has 183 ancestors and is cut-off event [2022-11-18 19:46:49,245 INFO L386 tUnfolder$Statistics]: existing Event has 213 ancestors and is cut-off event [2022-11-18 19:46:49,502 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1318] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_7| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of2ForFork0_thidvar0_4) InVars {t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} AuxVars[] AssignedVars[][383], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, t_funThread1of2ForFork0NotInUse, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), 20#t_funENTRYtrue, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread2of2ForFork0InUse, Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 19:46:49,503 INFO L383 tUnfolder$Statistics]: this new event has 237 ancestors and is cut-off event [2022-11-18 19:46:49,503 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-18 19:46:49,503 INFO L386 tUnfolder$Statistics]: existing Event has 225 ancestors and is cut-off event [2022-11-18 19:46:49,503 INFO L386 tUnfolder$Statistics]: existing Event has 225 ancestors and is cut-off event [2022-11-18 19:46:49,712 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1319] t_funEXIT-->L958-5: Formula: (= v_t_funThread2of2ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_9| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} AuxVars[] AssignedVars[][416], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, t_funThread1of2ForFork0NotInUse, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), t_funThread2of2ForFork0NotInUse, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 19:46:49,712 INFO L383 tUnfolder$Statistics]: this new event has 252 ancestors and is cut-off event [2022-11-18 19:46:49,713 INFO L386 tUnfolder$Statistics]: existing Event has 240 ancestors and is cut-off event [2022-11-18 19:46:49,713 INFO L386 tUnfolder$Statistics]: existing Event has 210 ancestors and is cut-off event [2022-11-18 19:46:49,713 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-18 19:46:49,745 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1319] t_funEXIT-->L958-5: Formula: (= v_t_funThread2of2ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_9| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} AuxVars[] AssignedVars[][416], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), t_funThread1of2ForFork0InUse, t_funThread2of2ForFork0NotInUse, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 97#L941-6true, Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 19:46:49,745 INFO L383 tUnfolder$Statistics]: this new event has 254 ancestors and is cut-off event [2022-11-18 19:46:49,746 INFO L386 tUnfolder$Statistics]: existing Event has 242 ancestors and is cut-off event [2022-11-18 19:46:49,746 INFO L386 tUnfolder$Statistics]: existing Event has 212 ancestors and is cut-off event [2022-11-18 19:46:49,746 INFO L386 tUnfolder$Statistics]: existing Event has 254 ancestors and is cut-off event [2022-11-18 19:46:49,799 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1318] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_7| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of2ForFork0_thidvar0_4) InVars {t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} AuxVars[] AssignedVars[][383], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, t_funThread1of2ForFork0NotInUse, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread2of2ForFork0InUse, Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 232#L941-10true, 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 19:46:49,799 INFO L383 tUnfolder$Statistics]: this new event has 258 ancestors and is cut-off event [2022-11-18 19:46:49,799 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-11-18 19:46:49,800 INFO L386 tUnfolder$Statistics]: existing Event has 246 ancestors and is cut-off event [2022-11-18 19:46:49,800 INFO L386 tUnfolder$Statistics]: existing Event has 246 ancestors and is cut-off event [2022-11-18 19:46:49,887 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1160] L946-4-->L946-5: Formula: (and (= |v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset_1| (+ (* |v_t_funThread1of2ForFork0_~i~0#1_9| 28) |v_~#cache~0.offset_11|)) (= |v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base_1| |v_~#cache~0.base_12|)) InVars {~#cache~0.offset=|v_~#cache~0.offset_11|, ~#cache~0.base=|v_~#cache~0.base_12|, t_funThread1of2ForFork0_~i~0#1=|v_t_funThread1of2ForFork0_~i~0#1_9|} OutVars{~#cache~0.offset=|v_~#cache~0.offset_11|, ~#cache~0.base=|v_~#cache~0.base_12|, t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base=|v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base_1|, t_funThread1of2ForFork0_~i~0#1=|v_t_funThread1of2ForFork0_~i~0#1_9|, t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset=|v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset_1|} AuxVars[] AssignedVars[t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset, t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base][201], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), t_funThread1of2ForFork0InUse, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread2of2ForFork0InUse, Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, 181#L946-5true, 280#L959true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 232#L941-10true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 19:46:49,887 INFO L383 tUnfolder$Statistics]: this new event has 247 ancestors and is cut-off event [2022-11-18 19:46:49,888 INFO L386 tUnfolder$Statistics]: existing Event has 247 ancestors and is cut-off event [2022-11-18 19:46:49,888 INFO L386 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2022-11-18 19:46:49,888 INFO L386 tUnfolder$Statistics]: existing Event has 235 ancestors and is cut-off event [2022-11-18 19:46:49,958 INFO L130 PetriNetUnfolder]: 671/7942 cut-off events. [2022-11-18 19:46:49,958 INFO L131 PetriNetUnfolder]: For 3660/3837 co-relation queries the response was YES. [2022-11-18 19:46:50,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10841 conditions, 7942 events. 671/7942 cut-off events. For 3660/3837 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 88552 event pairs, 89 based on Foata normal form. 16/6896 useless extension candidates. Maximal degree in co-relation 10639. Up to 257 conditions per place. [2022-11-18 19:46:50,186 INFO L137 encePairwiseOnDemand]: 377/380 looper letters, 14 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2022-11-18 19:46:50,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 447 transitions, 1594 flow [2022-11-18 19:46:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:46:50,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:46:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2022-11-18 19:46:50,190 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8412280701754385 [2022-11-18 19:46:50,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 959 transitions. [2022-11-18 19:46:50,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 959 transitions. [2022-11-18 19:46:50,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:50,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 959 transitions. [2022-11-18 19:46:50,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:50,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:50,197 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:50,197 INFO L175 Difference]: Start difference. First operand has 414 places, 443 transitions, 1554 flow. Second operand 3 states and 959 transitions. [2022-11-18 19:46:50,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 447 transitions, 1594 flow [2022-11-18 19:46:50,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 447 transitions, 1593 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:46:50,241 INFO L231 Difference]: Finished difference. Result has 416 places, 444 transitions, 1565 flow [2022-11-18 19:46:50,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=1553, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1565, PETRI_PLACES=416, PETRI_TRANSITIONS=444} [2022-11-18 19:46:50,242 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 91 predicate places. [2022-11-18 19:46:50,243 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 444 transitions, 1565 flow [2022-11-18 19:46:50,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:50,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:50,244 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 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] [2022-11-18 19:46:50,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:50,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:50,450 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 19:46:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:50,451 INFO L85 PathProgramCache]: Analyzing trace with hash 805498546, now seen corresponding path program 1 times [2022-11-18 19:46:50,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:50,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299816235] [2022-11-18 19:46:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:50,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:46:50,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:46:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:46:50,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:46:50,551 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:46:50,552 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2022-11-18 19:46:50,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 35 remaining) [2022-11-18 19:46:50,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 35 remaining) [2022-11-18 19:46:50,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 35 remaining) [2022-11-18 19:46:50,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 35 remaining) [2022-11-18 19:46:50,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 35 remaining) [2022-11-18 19:46:50,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 35 remaining) [2022-11-18 19:46:50,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 35 remaining) [2022-11-18 19:46:50,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 35 remaining) [2022-11-18 19:46:50,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 35 remaining) [2022-11-18 19:46:50,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 35 remaining) [2022-11-18 19:46:50,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 35 remaining) [2022-11-18 19:46:50,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 35 remaining) [2022-11-18 19:46:50,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 35 remaining) [2022-11-18 19:46:50,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 35 remaining) [2022-11-18 19:46:50,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 35 remaining) [2022-11-18 19:46:50,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 35 remaining) [2022-11-18 19:46:50,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 35 remaining) [2022-11-18 19:46:50,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 35 remaining) [2022-11-18 19:46:50,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 35 remaining) [2022-11-18 19:46:50,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 35 remaining) [2022-11-18 19:46:50,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 35 remaining) [2022-11-18 19:46:50,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 35 remaining) [2022-11-18 19:46:50,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 35 remaining) [2022-11-18 19:46:50,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 35 remaining) [2022-11-18 19:46:50,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 35 remaining) [2022-11-18 19:46:50,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 35 remaining) [2022-11-18 19:46:50,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 35 remaining) [2022-11-18 19:46:50,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 35 remaining) [2022-11-18 19:46:50,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 35 remaining) [2022-11-18 19:46:50,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 35 remaining) [2022-11-18 19:46:50,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 35 remaining) [2022-11-18 19:46:50,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 35 remaining) [2022-11-18 19:46:50,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 35 remaining) [2022-11-18 19:46:50,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 35 remaining) [2022-11-18 19:46:50,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 19:46:50,564 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:50,565 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 19:46:50,565 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 19:46:50,644 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 19:46:50,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 396 places, 464 transitions, 958 flow [2022-11-18 19:46:51,062 INFO L130 PetriNetUnfolder]: 168/1050 cut-off events. [2022-11-18 19:46:51,062 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 19:46:51,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 1050 events. 168/1050 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5992 event pairs, 1 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 739. Up to 16 conditions per place. [2022-11-18 19:46:51,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 396 places, 464 transitions, 958 flow [2022-11-18 19:46:51,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 396 places, 464 transitions, 958 flow [2022-11-18 19:46:51,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:46:51,103 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;@7d28afc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:46:51,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-11-18 19:46:51,106 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-18 19:46:51,106 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:46:51,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:51,107 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] [2022-11-18 19:46:51,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:51,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:51,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1409541075, now seen corresponding path program 1 times [2022-11-18 19:46:51,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:51,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082782626] [2022-11-18 19:46:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:51,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:51,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:51,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082782626] [2022-11-18 19:46:51,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082782626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:51,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:51,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:51,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590082534] [2022-11-18 19:46:51,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:51,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:51,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:51,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:51,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:51,148 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:51,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 464 transitions, 958 flow. Second operand has 4 states, 4 states have (on average 380.5) internal successors, (1522), 4 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:51,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:51,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:51,396 INFO L130 PetriNetUnfolder]: 27/905 cut-off events. [2022-11-18 19:46:51,396 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-18 19:46:51,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 968 conditions, 905 events. 27/905 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5230 event pairs, 1 based on Foata normal form. 258/1041 useless extension candidates. Maximal degree in co-relation 662. Up to 28 conditions per place. [2022-11-18 19:46:51,421 INFO L137 encePairwiseOnDemand]: 395/464 looper letters, 21 selfloop transitions, 4 changer transitions 0/404 dead transitions. [2022-11-18 19:46:51,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 404 transitions, 888 flow [2022-11-18 19:46:51,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:51,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1986 transitions. [2022-11-18 19:46:51,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8560344827586207 [2022-11-18 19:46:51,426 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1986 transitions. [2022-11-18 19:46:51,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1986 transitions. [2022-11-18 19:46:51,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:51,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1986 transitions. [2022-11-18 19:46:51,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 397.2) internal successors, (1986), 5 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,434 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,434 INFO L175 Difference]: Start difference. First operand has 396 places, 464 transitions, 958 flow. Second operand 5 states and 1986 transitions. [2022-11-18 19:46:51,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 404 transitions, 888 flow [2022-11-18 19:46:51,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 404 transitions, 888 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:46:51,442 INFO L231 Difference]: Finished difference. Result has 398 places, 400 transitions, 856 flow [2022-11-18 19:46:51,443 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=856, PETRI_PLACES=398, PETRI_TRANSITIONS=400} [2022-11-18 19:46:51,444 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 2 predicate places. [2022-11-18 19:46:51,444 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 400 transitions, 856 flow [2022-11-18 19:46:51,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 380.5) internal successors, (1522), 4 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,444 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:51,445 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:51,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 19:46:51,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:51,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1391406635, now seen corresponding path program 1 times [2022-11-18 19:46:51,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:51,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432709237] [2022-11-18 19:46:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:51,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:46:51,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:51,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432709237] [2022-11-18 19:46:51,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432709237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:51,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:51,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:51,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402336205] [2022-11-18 19:46:51,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:51,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:51,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:51,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:51,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:51,488 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:51,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 400 transitions, 856 flow. Second operand has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:51,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:51,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:51,719 INFO L130 PetriNetUnfolder]: 27/904 cut-off events. [2022-11-18 19:46:51,720 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-11-18 19:46:51,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 904 events. 27/904 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5225 event pairs, 1 based on Foata normal form. 1/786 useless extension candidates. Maximal degree in co-relation 927. Up to 20 conditions per place. [2022-11-18 19:46:51,741 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 13 selfloop transitions, 8 changer transitions 0/400 dead transitions. [2022-11-18 19:46:51,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 400 transitions, 896 flow [2022-11-18 19:46:51,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:51,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1914 transitions. [2022-11-18 19:46:51,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 19:46:51,746 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1914 transitions. [2022-11-18 19:46:51,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1914 transitions. [2022-11-18 19:46:51,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:51,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1914 transitions. [2022-11-18 19:46:51,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 382.8) internal successors, (1914), 5 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,753 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,753 INFO L175 Difference]: Start difference. First operand has 398 places, 400 transitions, 856 flow. Second operand 5 states and 1914 transitions. [2022-11-18 19:46:51,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 400 transitions, 896 flow [2022-11-18 19:46:51,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 400 transitions, 894 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:46:51,763 INFO L231 Difference]: Finished difference. Result has 401 places, 400 transitions, 874 flow [2022-11-18 19:46:51,764 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=874, PETRI_PLACES=401, PETRI_TRANSITIONS=400} [2022-11-18 19:46:51,764 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 5 predicate places. [2022-11-18 19:46:51,764 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 400 transitions, 874 flow [2022-11-18 19:46:51,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:51,765 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:51,765 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:51,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 19:46:51,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:51,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:51,766 INFO L85 PathProgramCache]: Analyzing trace with hash -183931115, now seen corresponding path program 1 times [2022-11-18 19:46:51,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:51,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035225704] [2022-11-18 19:46:51,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:51,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:51,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:51,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035225704] [2022-11-18 19:46:51,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035225704] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:51,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391815324] [2022-11-18 19:46:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:51,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:51,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:51,827 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:51,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 19:46:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:51,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:46:51,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:52,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:52,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:52,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391815324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:52,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:52,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 19:46:52,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876770284] [2022-11-18 19:46:52,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:52,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:52,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:52,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:52,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:46:52,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:52,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 400 transitions, 874 flow. Second operand has 5 states, 5 states have (on average 381.8) internal successors, (1909), 5 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:52,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:52,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:52,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:52,399 INFO L130 PetriNetUnfolder]: 27/903 cut-off events. [2022-11-18 19:46:52,399 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-11-18 19:46:52,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 903 events. 27/903 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5217 event pairs, 1 based on Foata normal form. 1/785 useless extension candidates. Maximal degree in co-relation 925. Up to 23 conditions per place. [2022-11-18 19:46:52,422 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 15 selfloop transitions, 5 changer transitions 0/399 dead transitions. [2022-11-18 19:46:52,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 399 transitions, 910 flow [2022-11-18 19:46:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:46:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:46:52,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1533 transitions. [2022-11-18 19:46:52,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8259698275862069 [2022-11-18 19:46:52,426 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1533 transitions. [2022-11-18 19:46:52,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1533 transitions. [2022-11-18 19:46:52,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:52,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1533 transitions. [2022-11-18 19:46:52,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 383.25) internal successors, (1533), 4 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:52,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:52,433 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:52,433 INFO L175 Difference]: Start difference. First operand has 401 places, 400 transitions, 874 flow. Second operand 4 states and 1533 transitions. [2022-11-18 19:46:52,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 399 transitions, 910 flow [2022-11-18 19:46:52,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 399 transitions, 898 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:52,442 INFO L231 Difference]: Finished difference. Result has 400 places, 399 transitions, 868 flow [2022-11-18 19:46:52,443 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=868, PETRI_PLACES=400, PETRI_TRANSITIONS=399} [2022-11-18 19:46:52,444 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 4 predicate places. [2022-11-18 19:46:52,444 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 399 transitions, 868 flow [2022-11-18 19:46:52,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 381.8) internal successors, (1909), 5 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:52,445 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:52,445 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:52,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:52,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:52,651 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:52,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1973769465, now seen corresponding path program 1 times [2022-11-18 19:46:52,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:52,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485393736] [2022-11-18 19:46:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:52,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:52,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:52,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:52,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485393736] [2022-11-18 19:46:52,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485393736] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:52,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611973470] [2022-11-18 19:46:52,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:52,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:52,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:52,706 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:52,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 19:46:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:52,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:46:52,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:52,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:52,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:52,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611973470] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:52,908 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:52,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 19:46:52,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828961122] [2022-11-18 19:46:52,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:52,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:46:52,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:52,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:46:52,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:46:52,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:52,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 399 transitions, 868 flow. Second operand has 10 states, 10 states have (on average 381.7) internal successors, (3817), 10 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:52,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:52,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:52,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:53,264 INFO L130 PetriNetUnfolder]: 27/911 cut-off events. [2022-11-18 19:46:53,264 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-18 19:46:53,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1013 conditions, 911 events. 27/911 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5197 event pairs, 1 based on Foata normal form. 2/794 useless extension candidates. Maximal degree in co-relation 915. Up to 20 conditions per place. [2022-11-18 19:46:53,288 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 22 selfloop transitions, 9 changer transitions 0/410 dead transitions. [2022-11-18 19:46:53,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 410 transitions, 968 flow [2022-11-18 19:46:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:46:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:46:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3444 transitions. [2022-11-18 19:46:53,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8247126436781609 [2022-11-18 19:46:53,293 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3444 transitions. [2022-11-18 19:46:53,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3444 transitions. [2022-11-18 19:46:53,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:53,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3444 transitions. [2022-11-18 19:46:53,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 382.6666666666667) internal successors, (3444), 9 states have internal predecessors, (3444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 464.0) internal successors, (4640), 10 states have internal predecessors, (4640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,306 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 464.0) internal successors, (4640), 10 states have internal predecessors, (4640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,307 INFO L175 Difference]: Start difference. First operand has 400 places, 399 transitions, 868 flow. Second operand 9 states and 3444 transitions. [2022-11-18 19:46:53,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 410 transitions, 968 flow [2022-11-18 19:46:53,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 410 transitions, 954 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:53,315 INFO L231 Difference]: Finished difference. Result has 409 places, 403 transitions, 914 flow [2022-11-18 19:46:53,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=914, PETRI_PLACES=409, PETRI_TRANSITIONS=403} [2022-11-18 19:46:53,317 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 13 predicate places. [2022-11-18 19:46:53,317 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 403 transitions, 914 flow [2022-11-18 19:46:53,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 381.7) internal successors, (3817), 10 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:53,318 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:46:53,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:53,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 19:46:53,525 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:53,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:53,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2104083655, now seen corresponding path program 2 times [2022-11-18 19:46:53,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:53,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708588844] [2022-11-18 19:46:53,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:53,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 19:46:53,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:53,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708588844] [2022-11-18 19:46:53,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708588844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:53,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:53,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:53,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464710274] [2022-11-18 19:46:53,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:53,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:53,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:53,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:53,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:53,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:53,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 403 transitions, 914 flow. Second operand has 4 states, 4 states have (on average 380.75) internal successors, (1523), 4 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:53,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:53,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:53,877 INFO L130 PetriNetUnfolder]: 23/792 cut-off events. [2022-11-18 19:46:53,877 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2022-11-18 19:46:53,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 792 events. 23/792 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4336 event pairs, 1 based on Foata normal form. 0/691 useless extension candidates. Maximal degree in co-relation 828. Up to 40 conditions per place. [2022-11-18 19:46:53,902 INFO L137 encePairwiseOnDemand]: 457/464 looper letters, 21 selfloop transitions, 4 changer transitions 0/410 dead transitions. [2022-11-18 19:46:53,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 410 transitions, 978 flow [2022-11-18 19:46:53,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1923 transitions. [2022-11-18 19:46:53,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8288793103448275 [2022-11-18 19:46:53,906 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1923 transitions. [2022-11-18 19:46:53,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1923 transitions. [2022-11-18 19:46:53,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:53,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1923 transitions. [2022-11-18 19:46:53,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 384.6) internal successors, (1923), 5 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,921 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,922 INFO L175 Difference]: Start difference. First operand has 409 places, 403 transitions, 914 flow. Second operand 5 states and 1923 transitions. [2022-11-18 19:46:53,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 410 transitions, 978 flow [2022-11-18 19:46:53,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 410 transitions, 962 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 19:46:53,931 INFO L231 Difference]: Finished difference. Result has 412 places, 406 transitions, 930 flow [2022-11-18 19:46:53,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=930, PETRI_PLACES=412, PETRI_TRANSITIONS=406} [2022-11-18 19:46:53,933 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 16 predicate places. [2022-11-18 19:46:53,934 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 406 transitions, 930 flow [2022-11-18 19:46:53,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 380.75) internal successors, (1523), 4 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:53,935 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:53,935 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-18 19:46:53,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 19:46:53,935 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:53,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:53,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2118770970, now seen corresponding path program 1 times [2022-11-18 19:46:53,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:53,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312296052] [2022-11-18 19:46:53,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:53,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 19:46:54,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:54,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312296052] [2022-11-18 19:46:54,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312296052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:54,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:54,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:54,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595326548] [2022-11-18 19:46:54,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:54,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:54,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:54,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:54,019 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:54,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 406 transitions, 930 flow. Second operand has 4 states, 4 states have (on average 382.75) internal successors, (1531), 4 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:54,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:54,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:54,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:54,326 INFO L130 PetriNetUnfolder]: 23/790 cut-off events. [2022-11-18 19:46:54,326 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2022-11-18 19:46:54,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 790 events. 23/790 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4306 event pairs, 1 based on Foata normal form. 2/698 useless extension candidates. Maximal degree in co-relation 838. Up to 20 conditions per place. [2022-11-18 19:46:54,345 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 13 selfloop transitions, 8 changer transitions 0/406 dead transitions. [2022-11-18 19:46:54,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 406 transitions, 970 flow [2022-11-18 19:46:54,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:46:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:46:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1914 transitions. [2022-11-18 19:46:54,349 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 19:46:54,349 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1914 transitions. [2022-11-18 19:46:54,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1914 transitions. [2022-11-18 19:46:54,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:54,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1914 transitions. [2022-11-18 19:46:54,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 382.8) internal successors, (1914), 5 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:54,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:54,356 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:54,357 INFO L175 Difference]: Start difference. First operand has 412 places, 406 transitions, 930 flow. Second operand 5 states and 1914 transitions. [2022-11-18 19:46:54,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 406 transitions, 970 flow [2022-11-18 19:46:54,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 406 transitions, 968 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:46:54,366 INFO L231 Difference]: Finished difference. Result has 415 places, 406 transitions, 948 flow [2022-11-18 19:46:54,366 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=948, PETRI_PLACES=415, PETRI_TRANSITIONS=406} [2022-11-18 19:46:54,367 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 19 predicate places. [2022-11-18 19:46:54,367 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 406 transitions, 948 flow [2022-11-18 19:46:54,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.75) internal successors, (1531), 4 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:54,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:54,368 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-18 19:46:54,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 19:46:54,368 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1257392036, now seen corresponding path program 1 times [2022-11-18 19:46:54,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:54,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975867268] [2022-11-18 19:46:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:54,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:54,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:54,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975867268] [2022-11-18 19:46:54,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975867268] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:54,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157711816] [2022-11-18 19:46:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:54,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:54,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:54,506 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:54,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 19:46:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:54,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:46:54,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:54,694 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:54,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:54,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157711816] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:54,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:54,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 19:46:54,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995175328] [2022-11-18 19:46:54,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:54,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:46:54,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:54,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:46:54,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:46:54,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:54,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 406 transitions, 948 flow. Second operand has 18 states, 18 states have (on average 382.1111111111111) internal successors, (6878), 18 states have internal predecessors, (6878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:54,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:54,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:54,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:55,312 INFO L130 PetriNetUnfolder]: 23/818 cut-off events. [2022-11-18 19:46:55,313 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-11-18 19:46:55,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 818 events. 23/818 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4307 event pairs, 1 based on Foata normal form. 4/728 useless extension candidates. Maximal degree in co-relation 828. Up to 20 conditions per place. [2022-11-18 19:46:55,338 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 38 selfloop transitions, 21 changer transitions 0/441 dead transitions. [2022-11-18 19:46:55,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 441 transitions, 1220 flow [2022-11-18 19:46:55,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:46:55,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:46:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8022 transitions. [2022-11-18 19:46:55,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8232758620689655 [2022-11-18 19:46:55,349 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8022 transitions. [2022-11-18 19:46:55,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8022 transitions. [2022-11-18 19:46:55,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:55,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8022 transitions. [2022-11-18 19:46:55,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 382.0) internal successors, (8022), 21 states have internal predecessors, (8022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:55,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 464.0) internal successors, (10208), 22 states have internal predecessors, (10208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:55,376 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 464.0) internal successors, (10208), 22 states have internal predecessors, (10208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:55,377 INFO L175 Difference]: Start difference. First operand has 415 places, 406 transitions, 948 flow. Second operand 21 states and 8022 transitions. [2022-11-18 19:46:55,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 441 transitions, 1220 flow [2022-11-18 19:46:55,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 441 transitions, 1208 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:46:55,387 INFO L231 Difference]: Finished difference. Result has 437 places, 419 transitions, 1092 flow [2022-11-18 19:46:55,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1092, PETRI_PLACES=437, PETRI_TRANSITIONS=419} [2022-11-18 19:46:55,388 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 41 predicate places. [2022-11-18 19:46:55,388 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 419 transitions, 1092 flow [2022-11-18 19:46:55,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 382.1111111111111) internal successors, (6878), 18 states have internal predecessors, (6878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:55,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:55,391 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 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] [2022-11-18 19:46:55,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:55,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 19:46:55,597 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:55,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash -454429660, now seen corresponding path program 2 times [2022-11-18 19:46:55,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:55,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052030917] [2022-11-18 19:46:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:55,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:55,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:55,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052030917] [2022-11-18 19:46:55,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052030917] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:55,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300739667] [2022-11-18 19:46:55,947 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:46:55,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:55,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:55,949 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:55,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 19:46:56,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:46:56,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:56,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:46:56,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:56,239 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:56,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 19:46:56,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300739667] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:46:56,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:46:56,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 19:46:56,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638656270] [2022-11-18 19:46:56,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:46:56,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:46:56,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:56,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:46:56,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:46:56,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:56,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 419 transitions, 1092 flow. Second operand has 23 states, 23 states have (on average 382.3478260869565) internal successors, (8794), 23 states have internal predecessors, (8794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:56,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:56,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:56,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:57,226 INFO L130 PetriNetUnfolder]: 23/839 cut-off events. [2022-11-18 19:46:57,227 INFO L131 PetriNetUnfolder]: For 274/274 co-relation queries the response was YES. [2022-11-18 19:46:57,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 839 events. 23/839 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4307 event pairs, 1 based on Foata normal form. 3/748 useless extension candidates. Maximal degree in co-relation 828. Up to 20 conditions per place. [2022-11-18 19:46:57,249 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 50 selfloop transitions, 30 changer transitions 0/462 dead transitions. [2022-11-18 19:46:57,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 462 transitions, 1462 flow [2022-11-18 19:46:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 19:46:57,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 19:46:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11453 transitions. [2022-11-18 19:46:57,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8227729885057471 [2022-11-18 19:46:57,269 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 11453 transitions. [2022-11-18 19:46:57,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 11453 transitions. [2022-11-18 19:46:57,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:57,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 11453 transitions. [2022-11-18 19:46:57,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 381.76666666666665) internal successors, (11453), 30 states have internal predecessors, (11453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:57,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 464.0) internal successors, (14384), 31 states have internal predecessors, (14384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:57,320 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 464.0) internal successors, (14384), 31 states have internal predecessors, (14384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:57,320 INFO L175 Difference]: Start difference. First operand has 437 places, 419 transitions, 1092 flow. Second operand 30 states and 11453 transitions. [2022-11-18 19:46:57,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 462 transitions, 1462 flow [2022-11-18 19:46:57,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 462 transitions, 1382 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-18 19:46:57,336 INFO L231 Difference]: Finished difference. Result has 462 places, 429 transitions, 1190 flow [2022-11-18 19:46:57,337 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=462, PETRI_TRANSITIONS=429} [2022-11-18 19:46:57,337 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 66 predicate places. [2022-11-18 19:46:57,337 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 429 transitions, 1190 flow [2022-11-18 19:46:57,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 382.3478260869565) internal successors, (8794), 23 states have internal predecessors, (8794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:57,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:57,340 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 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] [2022-11-18 19:46:57,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:57,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 19:46:57,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:57,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2122892894, now seen corresponding path program 3 times [2022-11-18 19:46:57,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:57,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998010670] [2022-11-18 19:46:57,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:57,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:57,702 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:46:57,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:57,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998010670] [2022-11-18 19:46:57,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998010670] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:57,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269194521] [2022-11-18 19:46:57,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:46:57,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:57,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:57,705 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:57,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 19:46:57,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:46:57,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:46:57,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:46:57,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:46:57,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:57,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269194521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:57,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:57,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 19:46:57,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929712646] [2022-11-18 19:46:57,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:57,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:46:57,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 19:46:57,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 429 transitions, 1190 flow. Second operand has 5 states, 5 states have (on average 382.2) internal successors, (1911), 5 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:57,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:57,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 19:46:57,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:46:58,322 INFO L130 PetriNetUnfolder]: 23/837 cut-off events. [2022-11-18 19:46:58,322 INFO L131 PetriNetUnfolder]: For 235/235 co-relation queries the response was YES. [2022-11-18 19:46:58,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 837 events. 23/837 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4303 event pairs, 1 based on Foata normal form. 2/745 useless extension candidates. Maximal degree in co-relation 846. Up to 30 conditions per place. [2022-11-18 19:46:58,351 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 15 selfloop transitions, 5 changer transitions 0/428 dead transitions. [2022-11-18 19:46:58,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 428 transitions, 1226 flow [2022-11-18 19:46:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:46:58,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:46:58,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1533 transitions. [2022-11-18 19:46:58,355 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8259698275862069 [2022-11-18 19:46:58,355 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1533 transitions. [2022-11-18 19:46:58,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1533 transitions. [2022-11-18 19:46:58,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:46:58,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1533 transitions. [2022-11-18 19:46:58,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 383.25) internal successors, (1533), 4 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,364 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,365 INFO L175 Difference]: Start difference. First operand has 462 places, 429 transitions, 1190 flow. Second operand 4 states and 1533 transitions. [2022-11-18 19:46:58,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 428 transitions, 1226 flow [2022-11-18 19:46:58,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 428 transitions, 1180 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 19:46:58,379 INFO L231 Difference]: Finished difference. Result has 446 places, 428 transitions, 1150 flow [2022-11-18 19:46:58,380 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1150, PETRI_PLACES=446, PETRI_TRANSITIONS=428} [2022-11-18 19:46:58,380 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 50 predicate places. [2022-11-18 19:46:58,380 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 428 transitions, 1150 flow [2022-11-18 19:46:58,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 382.2) internal successors, (1911), 5 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:46:58,382 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:58,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:58,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ddc225-b058-48d1-a865-c3162cdc8f92/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-18 19:46:58,588 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 19:46:58,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:58,588 INFO L85 PathProgramCache]: Analyzing trace with hash -133430329, now seen corresponding path program 1 times [2022-11-18 19:46:58,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:58,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358392196] [2022-11-18 19:46:58,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:58,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 19:46:59,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:59,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358392196] [2022-11-18 19:46:59,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358392196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:59,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:59,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:46:59,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664978130] [2022-11-18 19:46:59,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:59,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:46:59,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:59,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:46:59,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:46:59,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 464 [2022-11-18 19:46:59,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 428 transitions, 1150 flow. Second operand has 11 states, 11 states have (on average 330.3636363636364) internal successors, (3634), 11 states have internal predecessors, (3634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:59,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:46:59,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 464 [2022-11-18 19:46:59,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand