./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:30:14,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:30:14,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:30:14,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:30:14,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:30:14,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:30:14,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:30:14,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:30:14,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:30:14,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:30:14,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:30:14,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:30:14,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:30:14,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:30:14,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:30:14,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:30:14,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:30:14,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:30:14,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:30:14,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:30:14,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:30:14,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:30:14,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:30:14,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:30:14,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:30:14,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:30:14,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:30:14,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:30:14,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:30:14,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:30:14,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:30:14,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:30:14,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:30:14,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:30:14,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:30:14,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:30:14,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:30:14,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:30:14,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:30:14,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:30:14,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:30:14,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 09:30:14,304 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:30:14,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:30:14,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:30:14,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:30:14,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:30:14,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:30:14,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:30:14,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:30:14,310 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:30:14,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:30:14,312 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:30:14,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:30:14,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:30:14,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:30:14,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:30:14,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:30:14,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:30:14,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:30:14,314 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 09:30:14,314 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:30:14,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:30:14,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:30:14,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:30:14,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:30:14,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:30:14,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:30:14,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:14,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:30:14,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:30:14,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:30:14,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:30:14,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:30:14,318 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:30:14,318 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:30:14,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:30:14,319 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_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2022-11-20 09:30:14,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:30:14,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:30:14,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:30:14,588 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:30:14,588 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:30:14,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2022-11-20 09:30:17,635 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:30:17,995 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:30:17,996 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2022-11-20 09:30:18,013 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/data/85c31bb41/9659b5cc9a634620939d7b000405e3b6/FLAGee05758bc [2022-11-20 09:30:18,032 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/data/85c31bb41/9659b5cc9a634620939d7b000405e3b6 [2022-11-20 09:30:18,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:30:18,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:30:18,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:18,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:30:18,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:30:18,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402d7a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18, skipping insertion in model container [2022-11-20 09:30:18,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:30:18,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:30:18,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i[41323,41336] [2022-11-20 09:30:18,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:18,697 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:30:18,752 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i[41323,41336] [2022-11-20 09:30:18,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:18,841 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:30:18,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18 WrapperNode [2022-11-20 09:30:18,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:18,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:30:18,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:30:18,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:30:18,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,917 INFO L138 Inliner]: procedures = 271, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 266 [2022-11-20 09:30:18,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:30:18,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:30:18,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:30:18,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:30:18,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:30:18,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:30:18,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:30:18,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:30:18,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (1/1) ... [2022-11-20 09:30:18,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:19,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:19,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:30:19,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:30:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:30:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:30:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:30:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:30:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 09:30:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:30:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 09:30:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 09:30:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:30:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:30:19,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:30:19,068 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:30:19,211 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:30:19,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:30:19,753 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:30:19,763 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:30:19,771 INFO L300 CfgBuilder]: Removed 35 assume(true) statements. [2022-11-20 09:30:19,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:19 BoogieIcfgContainer [2022-11-20 09:30:19,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:30:19,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:30:19,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:30:19,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:30:19,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:30:18" (1/3) ... [2022-11-20 09:30:19,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c179c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:19, skipping insertion in model container [2022-11-20 09:30:19,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:18" (2/3) ... [2022-11-20 09:30:19,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c179c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:19, skipping insertion in model container [2022-11-20 09:30:19,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:19" (3/3) ... [2022-11-20 09:30:19,789 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2022-11-20 09:30:19,799 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:30:19,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:30:19,810 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-20 09:30:19,810 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:30:19,938 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 09:30:19,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 293 transitions, 594 flow [2022-11-20 09:30:20,118 INFO L130 PetriNetUnfolder]: 73/447 cut-off events. [2022-11-20 09:30:20,130 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 09:30:20,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 447 events. 73/447 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2147 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2022-11-20 09:30:20,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 293 transitions, 594 flow [2022-11-20 09:30:20,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 290 transitions, 588 flow [2022-11-20 09:30:20,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:30:20,203 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;@6562796a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:30:20,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-20 09:30:20,219 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-20 09:30:20,219 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:30:20,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:20,220 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] [2022-11-20 09:30:20,221 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)] === [2022-11-20 09:30:20,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2050206312, now seen corresponding path program 1 times [2022-11-20 09:30:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:20,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579312597] [2022-11-20 09:30:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:20,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:20,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579312597] [2022-11-20 09:30:20,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579312597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:20,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:20,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:20,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443194375] [2022-11-20 09:30:20,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:20,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:20,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:20,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:20,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:20,638 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 293 [2022-11-20 09:30:20,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 290 transitions, 588 flow. Second operand has 4 states, 4 states have (on average 239.5) internal successors, (958), 4 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:20,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:20,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 293 [2022-11-20 09:30:20,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:20,887 INFO L130 PetriNetUnfolder]: 9/383 cut-off events. [2022-11-20 09:30:20,887 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 09:30:20,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 383 events. 9/383 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1743 event pairs, 0 based on Foata normal form. 62/396 useless extension candidates. Maximal degree in co-relation 207. Up to 15 conditions per place. [2022-11-20 09:30:20,895 INFO L137 encePairwiseOnDemand]: 248/293 looper letters, 17 selfloop transitions, 4 changer transitions 0/256 dead transitions. [2022-11-20 09:30:20,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 256 transitions, 562 flow [2022-11-20 09:30:20,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:20,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1253 transitions. [2022-11-20 09:30:20,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8552901023890785 [2022-11-20 09:30:20,923 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1253 transitions. [2022-11-20 09:30:20,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1253 transitions. [2022-11-20 09:30:20,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:20,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1253 transitions. [2022-11-20 09:30:20,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 250.6) internal successors, (1253), 5 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) [2022-11-20 09:30:20,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:20,950 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:20,952 INFO L175 Difference]: Start difference. First operand has 249 places, 290 transitions, 588 flow. Second operand 5 states and 1253 transitions. [2022-11-20 09:30:20,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 256 transitions, 562 flow [2022-11-20 09:30:20,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 256 transitions, 562 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:20,971 INFO L231 Difference]: Finished difference. Result has 253 places, 252 transitions, 538 flow [2022-11-20 09:30:20,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=538, PETRI_PLACES=253, PETRI_TRANSITIONS=252} [2022-11-20 09:30:20,980 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, 4 predicate places. [2022-11-20 09:30:20,980 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 252 transitions, 538 flow [2022-11-20 09:30:20,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 239.5) internal successors, (958), 4 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:20,982 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:20,983 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] [2022-11-20 09:30:20,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:30:20,983 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)] === [2022-11-20 09:30:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:20,984 INFO L85 PathProgramCache]: Analyzing trace with hash 147182989, now seen corresponding path program 1 times [2022-11-20 09:30:20,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:20,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213620297] [2022-11-20 09:30:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:20,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 09:30:21,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:21,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213620297] [2022-11-20 09:30:21,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213620297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:21,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:21,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:21,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610057641] [2022-11-20 09:30:21,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:21,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:21,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:21,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 293 [2022-11-20 09:30:21,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 252 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 241.25) internal successors, (965), 4 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:21,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 293 [2022-11-20 09:30:21,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:21,220 INFO L130 PetriNetUnfolder]: 9/382 cut-off events. [2022-11-20 09:30:21,221 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 09:30:21,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 382 events. 9/382 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1723 event pairs, 0 based on Foata normal form. 1/337 useless extension candidates. Maximal degree in co-relation 372. Up to 7 conditions per place. [2022-11-20 09:30:21,225 INFO L137 encePairwiseOnDemand]: 287/293 looper letters, 9 selfloop transitions, 8 changer transitions 0/252 dead transitions. [2022-11-20 09:30:21,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 252 transitions, 570 flow [2022-11-20 09:30:21,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:21,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:21,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1205 transitions. [2022-11-20 09:30:21,229 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8225255972696246 [2022-11-20 09:30:21,229 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1205 transitions. [2022-11-20 09:30:21,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1205 transitions. [2022-11-20 09:30:21,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:21,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1205 transitions. [2022-11-20 09:30:21,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,238 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,238 INFO L175 Difference]: Start difference. First operand has 253 places, 252 transitions, 538 flow. Second operand 5 states and 1205 transitions. [2022-11-20 09:30:21,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 252 transitions, 570 flow [2022-11-20 09:30:21,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 252 transitions, 568 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:30:21,245 INFO L231 Difference]: Finished difference. Result has 256 places, 252 transitions, 556 flow [2022-11-20 09:30:21,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=556, PETRI_PLACES=256, PETRI_TRANSITIONS=252} [2022-11-20 09:30:21,247 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, 7 predicate places. [2022-11-20 09:30:21,247 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 252 transitions, 556 flow [2022-11-20 09:30:21,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 241.25) internal successors, (965), 4 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:21,248 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] [2022-11-20 09:30:21,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:30:21,249 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)] === [2022-11-20 09:30:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:21,250 INFO L85 PathProgramCache]: Analyzing trace with hash 267706104, now seen corresponding path program 1 times [2022-11-20 09:30:21,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:21,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464728378] [2022-11-20 09:30:21,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:21,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:21,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:21,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:21,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464728378] [2022-11-20 09:30:21,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464728378] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:21,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768449037] [2022-11-20 09:30:21,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:21,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:21,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:21,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:21,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 09:30:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:21,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:21,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:21,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:21,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768449037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:21,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:21,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-20 09:30:21,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753072159] [2022-11-20 09:30:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:21,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:21,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:30:21,649 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 293 [2022-11-20 09:30:21,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 252 transitions, 556 flow. Second operand has 5 states, 5 states have (on average 240.8) internal successors, (1204), 5 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:21,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 293 [2022-11-20 09:30:21,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:21,769 INFO L130 PetriNetUnfolder]: 9/381 cut-off events. [2022-11-20 09:30:21,769 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 09:30:21,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 381 events. 9/381 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1729 event pairs, 0 based on Foata normal form. 1/336 useless extension candidates. Maximal degree in co-relation 370. Up to 10 conditions per place. [2022-11-20 09:30:21,773 INFO L137 encePairwiseOnDemand]: 289/293 looper letters, 11 selfloop transitions, 5 changer transitions 0/251 dead transitions. [2022-11-20 09:30:21,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 251 transitions, 584 flow [2022-11-20 09:30:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:30:21,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 09:30:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 965 transitions. [2022-11-20 09:30:21,777 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8233788395904437 [2022-11-20 09:30:21,777 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 965 transitions. [2022-11-20 09:30:21,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 965 transitions. [2022-11-20 09:30:21,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:21,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 965 transitions. [2022-11-20 09:30:21,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 241.25) internal successors, (965), 4 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,785 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,785 INFO L175 Difference]: Start difference. First operand has 256 places, 252 transitions, 556 flow. Second operand 4 states and 965 transitions. [2022-11-20 09:30:21,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 251 transitions, 584 flow [2022-11-20 09:30:21,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 251 transitions, 572 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:30:21,793 INFO L231 Difference]: Finished difference. Result has 255 places, 251 transitions, 550 flow [2022-11-20 09:30:21,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=550, PETRI_PLACES=255, PETRI_TRANSITIONS=251} [2022-11-20 09:30:21,794 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, 6 predicate places. [2022-11-20 09:30:21,795 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 251 transitions, 550 flow [2022-11-20 09:30:21,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.8) internal successors, (1204), 5 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:21,796 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:21,796 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] [2022-11-20 09:30:21,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:22,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-20 09:30:22,005 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)] === [2022-11-20 09:30:22,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:22,005 INFO L85 PathProgramCache]: Analyzing trace with hash -370937995, now seen corresponding path program 1 times [2022-11-20 09:30:22,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:22,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273129777] [2022-11-20 09:30:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:22,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:22,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:22,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273129777] [2022-11-20 09:30:22,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273129777] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:22,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145721479] [2022-11-20 09:30:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:22,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:22,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:22,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:22,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 09:30:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:22,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:22,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:22,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:22,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145721479] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:22,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:30:22,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 09:30:22,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109731081] [2022-11-20 09:30:22,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:22,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:30:22,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:22,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:30:22,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:30:22,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 293 [2022-11-20 09:30:22,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 251 transitions, 550 flow. Second operand has 10 states, 10 states have (on average 240.7) internal successors, (2407), 10 states have internal predecessors, (2407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:22,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:22,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 293 [2022-11-20 09:30:22,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:22,526 INFO L130 PetriNetUnfolder]: 9/389 cut-off events. [2022-11-20 09:30:22,526 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-20 09:30:22,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 389 events. 9/389 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1716 event pairs, 0 based on Foata normal form. 2/345 useless extension candidates. Maximal degree in co-relation 360. Up to 7 conditions per place. [2022-11-20 09:30:22,530 INFO L137 encePairwiseOnDemand]: 287/293 looper letters, 18 selfloop transitions, 9 changer transitions 0/262 dead transitions. [2022-11-20 09:30:22,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 262 transitions, 642 flow [2022-11-20 09:30:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:30:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 09:30:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2171 transitions. [2022-11-20 09:30:22,535 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8232840348881304 [2022-11-20 09:30:22,535 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2171 transitions. [2022-11-20 09:30:22,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2171 transitions. [2022-11-20 09:30:22,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:22,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2171 transitions. [2022-11-20 09:30:22,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 241.22222222222223) internal successors, (2171), 9 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:22,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 293.0) internal successors, (2930), 10 states have internal predecessors, (2930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:22,548 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 293.0) internal successors, (2930), 10 states have internal predecessors, (2930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:22,548 INFO L175 Difference]: Start difference. First operand has 255 places, 251 transitions, 550 flow. Second operand 9 states and 2171 transitions. [2022-11-20 09:30:22,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 262 transitions, 642 flow [2022-11-20 09:30:22,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 262 transitions, 628 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:30:22,555 INFO L231 Difference]: Finished difference. Result has 264 places, 255 transitions, 596 flow [2022-11-20 09:30:22,556 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=596, PETRI_PLACES=264, PETRI_TRANSITIONS=255} [2022-11-20 09:30:22,557 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, 15 predicate places. [2022-11-20 09:30:22,558 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 255 transitions, 596 flow [2022-11-20 09:30:22,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 240.7) internal successors, (2407), 10 states have internal predecessors, (2407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:22,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:22,559 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] [2022-11-20 09:30:22,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:22,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:22,770 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)] === [2022-11-20 09:30:22,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:22,770 INFO L85 PathProgramCache]: Analyzing trace with hash 565464021, now seen corresponding path program 2 times [2022-11-20 09:30:22,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:22,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795806549] [2022-11-20 09:30:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:22,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 09:30:22,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:22,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795806549] [2022-11-20 09:30:22,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795806549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:22,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:22,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:22,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255298625] [2022-11-20 09:30:22,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:22,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:22,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:22,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:22,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:22,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 293 [2022-11-20 09:30:22,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 255 transitions, 596 flow. Second operand has 4 states, 4 states have (on average 239.75) internal successors, (959), 4 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) [2022-11-20 09:30:22,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:22,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 293 [2022-11-20 09:30:22,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:22,937 INFO L130 PetriNetUnfolder]: 6/264 cut-off events. [2022-11-20 09:30:22,938 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-20 09:30:22,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 264 events. 6/264 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 815 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 247. Up to 7 conditions per place. [2022-11-20 09:30:22,941 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 10 selfloop transitions, 4 changer transitions 0/255 dead transitions. [2022-11-20 09:30:22,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 255 transitions, 624 flow [2022-11-20 09:30:22,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:22,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:22,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1207 transitions. [2022-11-20 09:30:22,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8238907849829351 [2022-11-20 09:30:22,945 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1207 transitions. [2022-11-20 09:30:22,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1207 transitions. [2022-11-20 09:30:22,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:22,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1207 transitions. [2022-11-20 09:30:22,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 241.4) internal successors, (1207), 5 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:22,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:22,952 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:22,952 INFO L175 Difference]: Start difference. First operand has 264 places, 255 transitions, 596 flow. Second operand 5 states and 1207 transitions. [2022-11-20 09:30:22,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 255 transitions, 624 flow [2022-11-20 09:30:22,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 255 transitions, 608 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-20 09:30:22,958 INFO L231 Difference]: Finished difference. Result has 263 places, 253 transitions, 588 flow [2022-11-20 09:30:22,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=588, PETRI_PLACES=263, PETRI_TRANSITIONS=253} [2022-11-20 09:30:22,959 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, 14 predicate places. [2022-11-20 09:30:22,959 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 253 transitions, 588 flow [2022-11-20 09:30:22,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 239.75) internal successors, (959), 4 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) [2022-11-20 09:30:22,959 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:22,960 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] [2022-11-20 09:30:22,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:30:22,960 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)] === [2022-11-20 09:30:22,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:22,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2004313565, now seen corresponding path program 1 times [2022-11-20 09:30:22,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:22,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949947704] [2022-11-20 09:30:22,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:22,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:23,134 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:30:23,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:23,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949947704] [2022-11-20 09:30:23,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949947704] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:23,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797702345] [2022-11-20 09:30:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:23,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:23,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:23,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:23,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 09:30:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:23,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:30:23,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:23,330 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:30:23,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:30:23,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797702345] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:23,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:30:23,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 09:30:23,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384233565] [2022-11-20 09:30:23,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:23,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:30:23,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:23,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:30:23,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:30:23,462 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 293 [2022-11-20 09:30:23,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 253 transitions, 588 flow. Second operand has 18 states, 18 states have (on average 241.05555555555554) internal successors, (4339), 18 states have internal predecessors, (4339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:23,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:23,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 293 [2022-11-20 09:30:23,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:23,779 INFO L130 PetriNetUnfolder]: 6/292 cut-off events. [2022-11-20 09:30:23,779 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-20 09:30:23,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 292 events. 6/292 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 818 event pairs, 0 based on Foata normal form. 4/270 useless extension candidates. Maximal degree in co-relation 240. Up to 9 conditions per place. [2022-11-20 09:30:23,783 INFO L137 encePairwiseOnDemand]: 287/293 looper letters, 34 selfloop transitions, 21 changer transitions 0/288 dead transitions. [2022-11-20 09:30:23,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 288 transitions, 852 flow [2022-11-20 09:30:23,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 09:30:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 09:30:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5057 transitions. [2022-11-20 09:30:23,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8218755078823338 [2022-11-20 09:30:23,793 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5057 transitions. [2022-11-20 09:30:23,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5057 transitions. [2022-11-20 09:30:23,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:23,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5057 transitions. [2022-11-20 09:30:23,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 240.8095238095238) internal successors, (5057), 21 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:23,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 293.0) internal successors, (6446), 22 states have internal predecessors, (6446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:23,822 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 293.0) internal successors, (6446), 22 states have internal predecessors, (6446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:23,822 INFO L175 Difference]: Start difference. First operand has 263 places, 253 transitions, 588 flow. Second operand 21 states and 5057 transitions. [2022-11-20 09:30:23,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 288 transitions, 852 flow [2022-11-20 09:30:23,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 288 transitions, 844 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:30:23,831 INFO L231 Difference]: Finished difference. Result has 284 places, 266 transitions, 736 flow [2022-11-20 09:30:23,832 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=736, PETRI_PLACES=284, PETRI_TRANSITIONS=266} [2022-11-20 09:30:23,834 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, 35 predicate places. [2022-11-20 09:30:23,835 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 266 transitions, 736 flow [2022-11-20 09:30:23,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 241.05555555555554) internal successors, (4339), 18 states have internal predecessors, (4339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:23,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:23,852 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] [2022-11-20 09:30:23,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:24,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:24,063 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)] === [2022-11-20 09:30:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash -675944803, now seen corresponding path program 2 times [2022-11-20 09:30:24,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:24,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595693376] [2022-11-20 09:30:24,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:24,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:30:24,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:24,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595693376] [2022-11-20 09:30:24,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595693376] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:24,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834220150] [2022-11-20 09:30:24,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:30:24,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:24,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:24,483 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:24,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 09:30:24,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 09:30:24,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:30:24,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 09:30:24,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:24,724 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:30:24,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:30:24,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834220150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:24,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:30:24,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 09:30:24,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363134176] [2022-11-20 09:30:24,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:24,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 09:30:24,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:24,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 09:30:24,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 09:30:24,968 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 293 [2022-11-20 09:30:24,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 266 transitions, 736 flow. Second operand has 23 states, 23 states have (on average 241.30434782608697) internal successors, (5550), 23 states have internal predecessors, (5550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:24,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:24,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 293 [2022-11-20 09:30:24,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:25,428 INFO L130 PetriNetUnfolder]: 6/313 cut-off events. [2022-11-20 09:30:25,428 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2022-11-20 09:30:25,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 313 events. 6/313 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 817 event pairs, 0 based on Foata normal form. 3/290 useless extension candidates. Maximal degree in co-relation 334. Up to 12 conditions per place. [2022-11-20 09:30:25,432 INFO L137 encePairwiseOnDemand]: 287/293 looper letters, 46 selfloop transitions, 30 changer transitions 0/309 dead transitions. [2022-11-20 09:30:25,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 309 transitions, 1098 flow [2022-11-20 09:30:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 09:30:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 09:30:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7219 transitions. [2022-11-20 09:30:25,445 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8212741751990899 [2022-11-20 09:30:25,445 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7219 transitions. [2022-11-20 09:30:25,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7219 transitions. [2022-11-20 09:30:25,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:25,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7219 transitions. [2022-11-20 09:30:25,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 240.63333333333333) internal successors, (7219), 30 states have internal predecessors, (7219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:25,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 293.0) internal successors, (9083), 31 states have internal predecessors, (9083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:25,481 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 293.0) internal successors, (9083), 31 states have internal predecessors, (9083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:25,482 INFO L175 Difference]: Start difference. First operand has 284 places, 266 transitions, 736 flow. Second operand 30 states and 7219 transitions. [2022-11-20 09:30:25,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 309 transitions, 1098 flow [2022-11-20 09:30:25,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 309 transitions, 1018 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-20 09:30:25,489 INFO L231 Difference]: Finished difference. Result has 309 places, 276 transitions, 834 flow [2022-11-20 09:30:25,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=834, PETRI_PLACES=309, PETRI_TRANSITIONS=276} [2022-11-20 09:30:25,491 INFO L288 CegarLoopForPetriNet]: 249 programPoint places, 60 predicate places. [2022-11-20 09:30:25,491 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 276 transitions, 834 flow [2022-11-20 09:30:25,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 241.30434782608697) internal successors, (5550), 23 states have internal predecessors, (5550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:25,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:25,493 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] [2022-11-20 09:30:25,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:25,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 09:30:25,699 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)] === [2022-11-20 09:30:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:25,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1005585442, now seen corresponding path program 3 times [2022-11-20 09:30:25,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:25,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608466071] [2022-11-20 09:30:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:25,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:30:25,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:30:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:30:25,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:30:25,791 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:30:25,792 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2022-11-20 09:30:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2022-11-20 09:30:25,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2022-11-20 09:30:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2022-11-20 09:30:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2022-11-20 09:30:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2022-11-20 09:30:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2022-11-20 09:30:25,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2022-11-20 09:30:25,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2022-11-20 09:30:25,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2022-11-20 09:30:25,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2022-11-20 09:30:25,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2022-11-20 09:30:25,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2022-11-20 09:30:25,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2022-11-20 09:30:25,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2022-11-20 09:30:25,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2022-11-20 09:30:25,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2022-11-20 09:30:25,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2022-11-20 09:30:25,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2022-11-20 09:30:25,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2022-11-20 09:30:25,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2022-11-20 09:30:25,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2022-11-20 09:30:25,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2022-11-20 09:30:25,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2022-11-20 09:30:25,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2022-11-20 09:30:25,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2022-11-20 09:30:25,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2022-11-20 09:30:25,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2022-11-20 09:30:25,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2022-11-20 09:30:25,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:30:25,800 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2022-11-20 09:30:25,802 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 09:30:25,802 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 09:30:25,839 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 09:30:25,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 322 places, 377 transitions, 772 flow [2022-11-20 09:30:25,940 INFO L130 PetriNetUnfolder]: 118/722 cut-off events. [2022-11-20 09:30:25,941 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 09:30:25,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 722 events. 118/722 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3912 event pairs, 0 based on Foata normal form. 0/546 useless extension candidates. Maximal degree in co-relation 449. Up to 12 conditions per place. [2022-11-20 09:30:25,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 322 places, 377 transitions, 772 flow [2022-11-20 09:30:25,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 322 places, 377 transitions, 772 flow [2022-11-20 09:30:25,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:30:25,962 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;@6562796a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:30:25,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-20 09:30:25,964 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-20 09:30:25,965 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:30:25,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:25,965 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] [2022-11-20 09:30:25,965 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)] === [2022-11-20 09:30:25,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:25,965 INFO L85 PathProgramCache]: Analyzing trace with hash 567003969, now seen corresponding path program 1 times [2022-11-20 09:30:25,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:25,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926682476] [2022-11-20 09:30:25,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:25,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:25,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:25,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:25,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926682476] [2022-11-20 09:30:26,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926682476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:26,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:26,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:26,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34690710] [2022-11-20 09:30:26,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:26,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:26,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:26,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:26,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:26,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:26,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 377 transitions, 772 flow. Second operand has 4 states, 4 states have (on average 308.5) internal successors, (1234), 4 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:26,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:26,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:26,162 INFO L130 PetriNetUnfolder]: 17/620 cut-off events. [2022-11-20 09:30:26,163 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-20 09:30:26,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 620 events. 17/620 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3330 event pairs, 0 based on Foata normal form. 125/662 useless extension candidates. Maximal degree in co-relation 409. Up to 19 conditions per place. [2022-11-20 09:30:26,173 INFO L137 encePairwiseOnDemand]: 320/377 looper letters, 19 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2022-11-20 09:30:26,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 330 transitions, 724 flow [2022-11-20 09:30:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:26,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:26,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1612 transitions. [2022-11-20 09:30:26,177 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8551724137931035 [2022-11-20 09:30:26,177 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1612 transitions. [2022-11-20 09:30:26,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1612 transitions. [2022-11-20 09:30:26,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:26,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1612 transitions. [2022-11-20 09:30:26,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 322.4) internal successors, (1612), 5 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 377.0) internal successors, (2262), 6 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,185 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 377.0) internal successors, (2262), 6 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,185 INFO L175 Difference]: Start difference. First operand has 322 places, 377 transitions, 772 flow. Second operand 5 states and 1612 transitions. [2022-11-20 09:30:26,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 330 transitions, 724 flow [2022-11-20 09:30:26,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 330 transitions, 724 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:26,191 INFO L231 Difference]: Finished difference. Result has 325 places, 326 transitions, 696 flow [2022-11-20 09:30:26,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=696, PETRI_PLACES=325, PETRI_TRANSITIONS=326} [2022-11-20 09:30:26,192 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 3 predicate places. [2022-11-20 09:30:26,193 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 326 transitions, 696 flow [2022-11-20 09:30:26,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 308.5) internal successors, (1234), 4 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:26,193 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] [2022-11-20 09:30:26,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:30:26,194 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)] === [2022-11-20 09:30:26,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:26,194 INFO L85 PathProgramCache]: Analyzing trace with hash -646269267, now seen corresponding path program 1 times [2022-11-20 09:30:26,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:26,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229170258] [2022-11-20 09:30:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:26,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:26,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 09:30:26,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:26,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229170258] [2022-11-20 09:30:26,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229170258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:26,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:26,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:26,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945000609] [2022-11-20 09:30:26,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:26,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:26,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:26,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:26,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:26,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 326 transitions, 696 flow. Second operand has 4 states, 4 states have (on average 310.25) internal successors, (1241), 4 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:26,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:26,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:26,369 INFO L130 PetriNetUnfolder]: 17/619 cut-off events. [2022-11-20 09:30:26,369 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-20 09:30:26,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 619 events. 17/619 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3333 event pairs, 0 based on Foata normal form. 1/540 useless extension candidates. Maximal degree in co-relation 620. Up to 11 conditions per place. [2022-11-20 09:30:26,381 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 11 selfloop transitions, 8 changer transitions 0/326 dead transitions. [2022-11-20 09:30:26,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 326 transitions, 732 flow [2022-11-20 09:30:26,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:26,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:26,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1552 transitions. [2022-11-20 09:30:26,385 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.823342175066313 [2022-11-20 09:30:26,385 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1552 transitions. [2022-11-20 09:30:26,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1552 transitions. [2022-11-20 09:30:26,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:26,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1552 transitions. [2022-11-20 09:30:26,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 310.4) internal successors, (1552), 5 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 377.0) internal successors, (2262), 6 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,394 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 377.0) internal successors, (2262), 6 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,394 INFO L175 Difference]: Start difference. First operand has 325 places, 326 transitions, 696 flow. Second operand 5 states and 1552 transitions. [2022-11-20 09:30:26,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 326 transitions, 732 flow [2022-11-20 09:30:26,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 326 transitions, 730 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:30:26,400 INFO L231 Difference]: Finished difference. Result has 328 places, 326 transitions, 714 flow [2022-11-20 09:30:26,401 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=714, PETRI_PLACES=328, PETRI_TRANSITIONS=326} [2022-11-20 09:30:26,402 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 6 predicate places. [2022-11-20 09:30:26,402 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 326 transitions, 714 flow [2022-11-20 09:30:26,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 310.25) internal successors, (1241), 4 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:26,403 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] [2022-11-20 09:30:26,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:30:26,404 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)] === [2022-11-20 09:30:26,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:26,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1440490321, now seen corresponding path program 1 times [2022-11-20 09:30:26,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:26,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478356034] [2022-11-20 09:30:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:26,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:26,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:26,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:26,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478356034] [2022-11-20 09:30:26,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478356034] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:26,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655152886] [2022-11-20 09:30:26,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:26,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:26,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:26,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:26,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 09:30:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:26,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:26,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:26,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:26,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655152886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:26,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:26,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-20 09:30:26,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754255502] [2022-11-20 09:30:26,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:26,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:26,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:26,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:26,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:30:26,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:26,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 326 transitions, 714 flow. Second operand has 5 states, 5 states have (on average 309.8) internal successors, (1549), 5 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:26,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:26,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:26,818 INFO L130 PetriNetUnfolder]: 17/618 cut-off events. [2022-11-20 09:30:26,818 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-11-20 09:30:26,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 618 events. 17/618 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3317 event pairs, 0 based on Foata normal form. 1/539 useless extension candidates. Maximal degree in co-relation 618. Up to 14 conditions per place. [2022-11-20 09:30:26,830 INFO L137 encePairwiseOnDemand]: 373/377 looper letters, 13 selfloop transitions, 5 changer transitions 0/325 dead transitions. [2022-11-20 09:30:26,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 325 transitions, 746 flow [2022-11-20 09:30:26,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:30:26,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 09:30:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1243 transitions. [2022-11-20 09:30:26,834 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8242705570291777 [2022-11-20 09:30:26,834 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1243 transitions. [2022-11-20 09:30:26,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1243 transitions. [2022-11-20 09:30:26,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:26,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1243 transitions. [2022-11-20 09:30:26,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 310.75) internal successors, (1243), 4 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,842 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,842 INFO L175 Difference]: Start difference. First operand has 328 places, 326 transitions, 714 flow. Second operand 4 states and 1243 transitions. [2022-11-20 09:30:26,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 325 transitions, 746 flow [2022-11-20 09:30:26,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 325 transitions, 734 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:30:26,848 INFO L231 Difference]: Finished difference. Result has 327 places, 325 transitions, 708 flow [2022-11-20 09:30:26,849 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=708, PETRI_PLACES=327, PETRI_TRANSITIONS=325} [2022-11-20 09:30:26,850 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 5 predicate places. [2022-11-20 09:30:26,850 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 325 transitions, 708 flow [2022-11-20 09:30:26,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 309.8) internal successors, (1549), 5 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:26,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:26,851 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] [2022-11-20 09:30:26,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-20 09:30:27,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 09:30:27,056 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)] === [2022-11-20 09:30:27,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:27,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1862115680, now seen corresponding path program 1 times [2022-11-20 09:30:27,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:27,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22368534] [2022-11-20 09:30:27,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:27,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:27,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:27,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:27,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22368534] [2022-11-20 09:30:27,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22368534] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:27,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073130953] [2022-11-20 09:30:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:27,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:27,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:27,109 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:27,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 09:30:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:27,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:27,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:27,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:27,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:27,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:27,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073130953] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:27,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:30:27,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 09:30:27,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940054274] [2022-11-20 09:30:27,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:27,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:30:27,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:27,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:30:27,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:30:27,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:27,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 325 transitions, 708 flow. Second operand has 10 states, 10 states have (on average 309.7) internal successors, (3097), 10 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:27,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:27,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:27,460 INFO L130 PetriNetUnfolder]: 17/626 cut-off events. [2022-11-20 09:30:27,460 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-20 09:30:27,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 626 events. 17/626 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3308 event pairs, 0 based on Foata normal form. 2/548 useless extension candidates. Maximal degree in co-relation 608. Up to 11 conditions per place. [2022-11-20 09:30:27,477 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 20 selfloop transitions, 9 changer transitions 0/336 dead transitions. [2022-11-20 09:30:27,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 336 transitions, 804 flow [2022-11-20 09:30:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:30:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 09:30:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2794 transitions. [2022-11-20 09:30:27,486 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8234600648393752 [2022-11-20 09:30:27,486 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2794 transitions. [2022-11-20 09:30:27,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2794 transitions. [2022-11-20 09:30:27,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:27,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2794 transitions. [2022-11-20 09:30:27,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 310.44444444444446) internal successors, (2794), 9 states have internal predecessors, (2794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 377.0) internal successors, (3770), 10 states have internal predecessors, (3770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,502 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 377.0) internal successors, (3770), 10 states have internal predecessors, (3770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,502 INFO L175 Difference]: Start difference. First operand has 327 places, 325 transitions, 708 flow. Second operand 9 states and 2794 transitions. [2022-11-20 09:30:27,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 336 transitions, 804 flow [2022-11-20 09:30:27,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 336 transitions, 790 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:30:27,509 INFO L231 Difference]: Finished difference. Result has 336 places, 329 transitions, 754 flow [2022-11-20 09:30:27,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=754, PETRI_PLACES=336, PETRI_TRANSITIONS=329} [2022-11-20 09:30:27,511 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 14 predicate places. [2022-11-20 09:30:27,511 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 329 transitions, 754 flow [2022-11-20 09:30:27,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 309.7) internal successors, (3097), 10 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,512 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:27,512 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] [2022-11-20 09:30:27,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:27,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:27,719 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)] === [2022-11-20 09:30:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1720053024, now seen corresponding path program 2 times [2022-11-20 09:30:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:27,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059702761] [2022-11-20 09:30:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 09:30:27,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:27,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059702761] [2022-11-20 09:30:27,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059702761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:27,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:27,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:27,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551879522] [2022-11-20 09:30:27,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:27,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:27,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:27,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:27,781 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:27,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 329 transitions, 754 flow. Second operand has 4 states, 4 states have (on average 308.75) internal successors, (1235), 4 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:27,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:27,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:27,939 INFO L130 PetriNetUnfolder]: 13/510 cut-off events. [2022-11-20 09:30:27,939 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-20 09:30:27,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 510 events. 13/510 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2446 event pairs, 0 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 514. Up to 21 conditions per place. [2022-11-20 09:30:27,950 INFO L137 encePairwiseOnDemand]: 370/377 looper letters, 19 selfloop transitions, 4 changer transitions 0/336 dead transitions. [2022-11-20 09:30:27,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 336 transitions, 814 flow [2022-11-20 09:30:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1561 transitions. [2022-11-20 09:30:27,956 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8281167108753316 [2022-11-20 09:30:27,956 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1561 transitions. [2022-11-20 09:30:27,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1561 transitions. [2022-11-20 09:30:27,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:27,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1561 transitions. [2022-11-20 09:30:27,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 312.2) internal successors, (1561), 5 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 377.0) internal successors, (2262), 6 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,964 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 377.0) internal successors, (2262), 6 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,964 INFO L175 Difference]: Start difference. First operand has 336 places, 329 transitions, 754 flow. Second operand 5 states and 1561 transitions. [2022-11-20 09:30:27,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 336 transitions, 814 flow [2022-11-20 09:30:27,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 336 transitions, 798 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-20 09:30:27,970 INFO L231 Difference]: Finished difference. Result has 339 places, 332 transitions, 770 flow [2022-11-20 09:30:27,971 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=770, PETRI_PLACES=339, PETRI_TRANSITIONS=332} [2022-11-20 09:30:27,973 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 17 predicate places. [2022-11-20 09:30:27,973 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 332 transitions, 770 flow [2022-11-20 09:30:27,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 308.75) internal successors, (1235), 4 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:27,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:27,974 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] [2022-11-20 09:30:27,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:30:27,975 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)] === [2022-11-20 09:30:27,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:27,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1935443863, now seen corresponding path program 1 times [2022-11-20 09:30:27,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:27,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592228191] [2022-11-20 09:30:27,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:27,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:28,029 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 09:30:28,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:28,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592228191] [2022-11-20 09:30:28,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592228191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:28,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:28,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365854466] [2022-11-20 09:30:28,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:28,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:28,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:28,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:28,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:28,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:28,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 332 transitions, 770 flow. Second operand has 4 states, 4 states have (on average 310.75) internal successors, (1243), 4 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:28,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:28,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:28,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:28,173 INFO L130 PetriNetUnfolder]: 13/509 cut-off events. [2022-11-20 09:30:28,174 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-11-20 09:30:28,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 509 events. 13/509 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2441 event pairs, 0 based on Foata normal form. 1/452 useless extension candidates. Maximal degree in co-relation 521. Up to 10 conditions per place. [2022-11-20 09:30:28,185 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 11 selfloop transitions, 8 changer transitions 0/332 dead transitions. [2022-11-20 09:30:28,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 332 transitions, 806 flow [2022-11-20 09:30:28,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:28,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1552 transitions. [2022-11-20 09:30:28,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.823342175066313 [2022-11-20 09:30:28,188 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1552 transitions. [2022-11-20 09:30:28,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1552 transitions. [2022-11-20 09:30:28,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:28,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1552 transitions. [2022-11-20 09:30:28,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 310.4) internal successors, (1552), 5 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:28,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 377.0) internal successors, (2262), 6 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:28,195 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 377.0) internal successors, (2262), 6 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:28,195 INFO L175 Difference]: Start difference. First operand has 339 places, 332 transitions, 770 flow. Second operand 5 states and 1552 transitions. [2022-11-20 09:30:28,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 332 transitions, 806 flow [2022-11-20 09:30:28,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 332 transitions, 804 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:30:28,202 INFO L231 Difference]: Finished difference. Result has 342 places, 332 transitions, 788 flow [2022-11-20 09:30:28,203 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=788, PETRI_PLACES=342, PETRI_TRANSITIONS=332} [2022-11-20 09:30:28,204 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 20 predicate places. [2022-11-20 09:30:28,204 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 332 transitions, 788 flow [2022-11-20 09:30:28,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 310.75) internal successors, (1243), 4 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:28,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:28,205 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] [2022-11-20 09:30:28,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:30:28,206 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)] === [2022-11-20 09:30:28,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:28,206 INFO L85 PathProgramCache]: Analyzing trace with hash 130783430, now seen corresponding path program 1 times [2022-11-20 09:30:28,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:28,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386381494] [2022-11-20 09:30:28,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:28,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:28,330 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:30:28,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:28,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386381494] [2022-11-20 09:30:28,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386381494] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:28,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181620399] [2022-11-20 09:30:28,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:28,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:28,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:28,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:28,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 09:30:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:28,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:30:28,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:30:28,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:30:28,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181620399] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:28,650 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:30:28,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 09:30:28,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353360334] [2022-11-20 09:30:28,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:28,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:30:28,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:28,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:30:28,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:30:28,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:28,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 332 transitions, 788 flow. Second operand has 18 states, 18 states have (on average 310.1111111111111) internal successors, (5582), 18 states have internal predecessors, (5582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:28,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:28,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:28,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:29,011 INFO L130 PetriNetUnfolder]: 13/537 cut-off events. [2022-11-20 09:30:29,012 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-11-20 09:30:29,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 537 events. 13/537 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2440 event pairs, 0 based on Foata normal form. 4/483 useless extension candidates. Maximal degree in co-relation 515. Up to 11 conditions per place. [2022-11-20 09:30:29,022 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 36 selfloop transitions, 21 changer transitions 0/367 dead transitions. [2022-11-20 09:30:29,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 367 transitions, 1056 flow [2022-11-20 09:30:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 09:30:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 09:30:29,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6508 transitions. [2022-11-20 09:30:29,035 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8220285461664772 [2022-11-20 09:30:29,035 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6508 transitions. [2022-11-20 09:30:29,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6508 transitions. [2022-11-20 09:30:29,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:29,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6508 transitions. [2022-11-20 09:30:29,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 309.9047619047619) internal successors, (6508), 21 states have internal predecessors, (6508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:29,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 377.0) internal successors, (8294), 22 states have internal predecessors, (8294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:29,080 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 377.0) internal successors, (8294), 22 states have internal predecessors, (8294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:29,081 INFO L175 Difference]: Start difference. First operand has 342 places, 332 transitions, 788 flow. Second operand 21 states and 6508 transitions. [2022-11-20 09:30:29,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 367 transitions, 1056 flow [2022-11-20 09:30:29,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 367 transitions, 1044 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:30:29,090 INFO L231 Difference]: Finished difference. Result has 364 places, 345 transitions, 932 flow [2022-11-20 09:30:29,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=932, PETRI_PLACES=364, PETRI_TRANSITIONS=345} [2022-11-20 09:30:29,092 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 42 predicate places. [2022-11-20 09:30:29,092 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 345 transitions, 932 flow [2022-11-20 09:30:29,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 310.1111111111111) internal successors, (5582), 18 states have internal predecessors, (5582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:29,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:29,095 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] [2022-11-20 09:30:29,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:29,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:29,302 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)] === [2022-11-20 09:30:29,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:29,302 INFO L85 PathProgramCache]: Analyzing trace with hash 49396678, now seen corresponding path program 2 times [2022-11-20 09:30:29,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:29,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008380692] [2022-11-20 09:30:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:29,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:30:29,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:29,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008380692] [2022-11-20 09:30:29,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008380692] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:29,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088150807] [2022-11-20 09:30:29,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:30:29,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:29,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:29,700 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:29,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 09:30:29,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 09:30:29,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:30:29,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 09:30:29,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:30:29,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:30:30,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088150807] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:30,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:30:30,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 09:30:30,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926555228] [2022-11-20 09:30:30,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:30,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 09:30:30,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:30,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 09:30:30,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 09:30:30,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:30,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 345 transitions, 932 flow. Second operand has 23 states, 23 states have (on average 310.3478260869565) internal successors, (7138), 23 states have internal predecessors, (7138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:30,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:30,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:30,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:30,727 INFO L130 PetriNetUnfolder]: 13/558 cut-off events. [2022-11-20 09:30:30,727 INFO L131 PetriNetUnfolder]: For 241/241 co-relation queries the response was YES. [2022-11-20 09:30:30,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 558 events. 13/558 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2445 event pairs, 0 based on Foata normal form. 3/503 useless extension candidates. Maximal degree in co-relation 572. Up to 12 conditions per place. [2022-11-20 09:30:30,738 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 48 selfloop transitions, 30 changer transitions 0/388 dead transitions. [2022-11-20 09:30:30,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 388 transitions, 1298 flow [2022-11-20 09:30:30,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 09:30:30,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 09:30:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9291 transitions. [2022-11-20 09:30:30,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8214854111405836 [2022-11-20 09:30:30,750 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 9291 transitions. [2022-11-20 09:30:30,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 9291 transitions. [2022-11-20 09:30:30,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:30,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 9291 transitions. [2022-11-20 09:30:30,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 309.7) internal successors, (9291), 30 states have internal predecessors, (9291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:30,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 377.0) internal successors, (11687), 31 states have internal predecessors, (11687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:30,793 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 377.0) internal successors, (11687), 31 states have internal predecessors, (11687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:30,794 INFO L175 Difference]: Start difference. First operand has 364 places, 345 transitions, 932 flow. Second operand 30 states and 9291 transitions. [2022-11-20 09:30:30,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 388 transitions, 1298 flow [2022-11-20 09:30:30,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 388 transitions, 1218 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-20 09:30:30,803 INFO L231 Difference]: Finished difference. Result has 389 places, 355 transitions, 1030 flow [2022-11-20 09:30:30,805 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1030, PETRI_PLACES=389, PETRI_TRANSITIONS=355} [2022-11-20 09:30:30,844 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 67 predicate places. [2022-11-20 09:30:30,844 INFO L495 AbstractCegarLoop]: Abstraction has has 389 places, 355 transitions, 1030 flow [2022-11-20 09:30:30,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 310.3478260869565) internal successors, (7138), 23 states have internal predecessors, (7138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:30,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:30,847 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] [2022-11-20 09:30:30,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-20 09:30:31,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-20 09:30:31,048 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)] === [2022-11-20 09:30:31,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:31,048 INFO L85 PathProgramCache]: Analyzing trace with hash 208792922, now seen corresponding path program 3 times [2022-11-20 09:30:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:31,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925558302] [2022-11-20 09:30:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:31,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:30:31,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:31,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925558302] [2022-11-20 09:30:31,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925558302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:31,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398411986] [2022-11-20 09:30:31,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 09:30:31,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:31,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:31,229 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:31,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 09:30:31,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 09:30:31,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:30:31,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:31,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:30:31,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:31,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398411986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:31,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:31,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-20 09:30:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325116579] [2022-11-20 09:30:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:31,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:30:31,410 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 377 [2022-11-20 09:30:31,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 355 transitions, 1030 flow. Second operand has 5 states, 5 states have (on average 310.2) internal successors, (1551), 5 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:31,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:31,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 377 [2022-11-20 09:30:31,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:31,564 INFO L130 PetriNetUnfolder]: 13/557 cut-off events. [2022-11-20 09:30:31,564 INFO L131 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2022-11-20 09:30:31,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 794 conditions, 557 events. 13/557 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2431 event pairs, 0 based on Foata normal form. 1/500 useless extension candidates. Maximal degree in co-relation 530. Up to 17 conditions per place. [2022-11-20 09:30:31,576 INFO L137 encePairwiseOnDemand]: 373/377 looper letters, 13 selfloop transitions, 5 changer transitions 0/354 dead transitions. [2022-11-20 09:30:31,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 354 transitions, 1062 flow [2022-11-20 09:30:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:30:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 09:30:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1243 transitions. [2022-11-20 09:30:31,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8242705570291777 [2022-11-20 09:30:31,578 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1243 transitions. [2022-11-20 09:30:31,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1243 transitions. [2022-11-20 09:30:31,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:31,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1243 transitions. [2022-11-20 09:30:31,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 310.75) internal successors, (1243), 4 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:31,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:31,584 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:31,584 INFO L175 Difference]: Start difference. First operand has 389 places, 355 transitions, 1030 flow. Second operand 4 states and 1243 transitions. [2022-11-20 09:30:31,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 354 transitions, 1062 flow [2022-11-20 09:30:31,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 354 transitions, 1016 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 09:30:31,593 INFO L231 Difference]: Finished difference. Result has 373 places, 354 transitions, 990 flow [2022-11-20 09:30:31,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=990, PETRI_PLACES=373, PETRI_TRANSITIONS=354} [2022-11-20 09:30:31,594 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 51 predicate places. [2022-11-20 09:30:31,594 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 354 transitions, 990 flow [2022-11-20 09:30:31,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 310.2) internal successors, (1551), 5 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:31,595 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:31,595 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] [2022-11-20 09:30:31,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:31,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 09:30:31,809 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)] === [2022-11-20 09:30:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:31,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2019785586, now seen corresponding path program 1 times [2022-11-20 09:30:31,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:31,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401219478] [2022-11-20 09:30:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:31,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:30:32,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:32,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401219478] [2022-11-20 09:30:32,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401219478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:32,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:32,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:30:32,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110200375] [2022-11-20 09:30:32,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:32,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:30:32,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:32,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:30:32,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:30:32,801 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 377 [2022-11-20 09:30:32,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 354 transitions, 990 flow. Second operand has 13 states, 13 states have (on average 241.15384615384616) internal successors, (3135), 13 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:32,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:32,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 377 [2022-11-20 09:30:32,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:54,090 INFO L130 PetriNetUnfolder]: 37636/105887 cut-off events. [2022-11-20 09:30:54,091 INFO L131 PetriNetUnfolder]: For 938/940 co-relation queries the response was YES. [2022-11-20 09:30:54,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160932 conditions, 105887 events. 37636/105887 cut-off events. For 938/940 co-relation queries the response was YES. Maximal size of possible extension queue 3066. Compared 1506362 event pairs, 8178 based on Foata normal form. 0/93636 useless extension candidates. Maximal degree in co-relation 160664. Up to 31621 conditions per place. [2022-11-20 09:30:55,352 INFO L137 encePairwiseOnDemand]: 356/377 looper letters, 524 selfloop transitions, 72 changer transitions 0/866 dead transitions. [2022-11-20 09:30:55,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 866 transitions, 3287 flow [2022-11-20 09:30:55,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 09:30:55,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-20 09:30:55,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6583 transitions. [2022-11-20 09:30:55,565 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6984615384615385 [2022-11-20 09:30:55,566 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 6583 transitions. [2022-11-20 09:30:55,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 6583 transitions. [2022-11-20 09:30:55,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:55,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 6583 transitions. [2022-11-20 09:30:55,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 263.32) internal successors, (6583), 25 states have internal predecessors, (6583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:55,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 377.0) internal successors, (9802), 26 states have internal predecessors, (9802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:55,593 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 377.0) internal successors, (9802), 26 states have internal predecessors, (9802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:55,593 INFO L175 Difference]: Start difference. First operand has 373 places, 354 transitions, 990 flow. Second operand 25 states and 6583 transitions. [2022-11-20 09:30:55,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 866 transitions, 3287 flow [2022-11-20 09:30:55,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 866 transitions, 3277 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:30:55,616 INFO L231 Difference]: Finished difference. Result has 412 places, 440 transitions, 1550 flow [2022-11-20 09:30:55,616 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1550, PETRI_PLACES=412, PETRI_TRANSITIONS=440} [2022-11-20 09:30:55,617 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 90 predicate places. [2022-11-20 09:30:55,617 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 440 transitions, 1550 flow [2022-11-20 09:30:55,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 241.15384615384616) internal successors, (3135), 13 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:55,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:55,618 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] [2022-11-20 09:30:55,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 09:30:55,619 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)] === [2022-11-20 09:30:55,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:55,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1824131942, now seen corresponding path program 1 times [2022-11-20 09:30:55,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:55,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150168218] [2022-11-20 09:30:55,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:55,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:30:55,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:55,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150168218] [2022-11-20 09:30:55,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150168218] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:55,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297269271] [2022-11-20 09:30:55,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:55,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:55,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:55,736 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:55,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 09:30:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:55,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:55,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-11-20 09:30:55,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:55,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297269271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:55,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:55,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-20 09:30:55,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768034573] [2022-11-20 09:30:55,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:55,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:55,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:55,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:55,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:55,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 377 [2022-11-20 09:30:55,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 440 transitions, 1550 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:55,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:55,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 377 [2022-11-20 09:30:55,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:57,463 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1308] t_funEXIT-->L958-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem57#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~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_7|} AuxVars[] AssignedVars[][380], [t_funThread1of2ForFork0NotInUse, Black: 1620#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread2of2ForFork0NotInUse, Black: 1603#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1231#(<= |ULTIMATE.start_main_~i~1#1| 7), 459#true, Black: 327#(= |ULTIMATE.start_main_~i~1#1| 0), 2232#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 744#true, 1215#true, Black: 463#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 631#(< |ULTIMATE.start_main_~i~1#1| 10), 753#true, Black: 739#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 736#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 737#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2248#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2272#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2256#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2266#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2262#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2233#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2268#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2258#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2260#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2264#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2250#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2246#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 268#L958-4true, Black: 2244#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2254#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2242#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2278#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 335#true, Black: 2252#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 1066#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1089#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 761#(<= |ULTIMATE.start_main_~i~1#1| 3), 2298#true, Black: 1049#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-20 09:30:57,464 INFO L383 tUnfolder$Statistics]: this new event has 222 ancestors and is cut-off event [2022-11-20 09:30:57,464 INFO L386 tUnfolder$Statistics]: existing Event has 210 ancestors and is cut-off event [2022-11-20 09:30:57,464 INFO L386 tUnfolder$Statistics]: existing Event has 210 ancestors and is cut-off event [2022-11-20 09:30:57,465 INFO L386 tUnfolder$Statistics]: existing Event has 180 ancestors and is cut-off event [2022-11-20 09:30:57,730 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1308] t_funEXIT-->L958-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem57#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~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_7|} AuxVars[] AssignedVars[][380], [t_funThread1of2ForFork0NotInUse, Black: 1620#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1603#(< |ULTIMATE.start_main_~i~1#1| 10), t_funThread2of2ForFork0InUse, Black: 1231#(<= |ULTIMATE.start_main_~i~1#1| 7), 459#true, Black: 327#(= |ULTIMATE.start_main_~i~1#1| 0), 2232#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 744#true, 1215#true, Black: 463#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 631#(< |ULTIMATE.start_main_~i~1#1| 10), 19#t_funENTRYtrue, 753#true, Black: 739#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 736#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 737#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2248#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2272#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2256#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2266#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2262#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2233#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2268#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2258#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2260#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2264#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2250#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2246#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 268#L958-4true, Black: 2244#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2254#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2242#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2278#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 335#true, Black: 2252#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 1066#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1089#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 761#(<= |ULTIMATE.start_main_~i~1#1| 3), 2298#true, Black: 1049#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-20 09:30:57,730 INFO L383 tUnfolder$Statistics]: this new event has 234 ancestors and is cut-off event [2022-11-20 09:30:57,731 INFO L386 tUnfolder$Statistics]: existing Event has 192 ancestors and is cut-off event [2022-11-20 09:30:57,731 INFO L386 tUnfolder$Statistics]: existing Event has 222 ancestors and is cut-off event [2022-11-20 09:30:57,731 INFO L386 tUnfolder$Statistics]: existing Event has 222 ancestors and is cut-off event [2022-11-20 09:30:57,840 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1309] t_funEXIT-->L958-4: Formula: (= v_t_funThread2of2ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem57#1_9| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} AuxVars[] AssignedVars[][414], [Black: 1620#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread1of2ForFork0InUse, Black: 1603#(< |ULTIMATE.start_main_~i~1#1| 10), t_funThread2of2ForFork0NotInUse, Black: 1231#(<= |ULTIMATE.start_main_~i~1#1| 7), 459#true, Black: 327#(= |ULTIMATE.start_main_~i~1#1| 0), 2232#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 744#true, 15#L940true, 1215#true, Black: 463#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 631#(< |ULTIMATE.start_main_~i~1#1| 10), 753#true, Black: 739#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 736#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 737#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2248#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2272#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2256#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2266#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2262#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2233#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2268#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2258#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2260#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2264#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2250#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2246#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 268#L958-4true, Black: 2244#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2254#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2242#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2278#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 335#true, Black: 2252#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 1066#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1089#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 761#(<= |ULTIMATE.start_main_~i~1#1| 3), 2298#true, Black: 1049#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-20 09:30:57,841 INFO L383 tUnfolder$Statistics]: this new event has 242 ancestors and is cut-off event [2022-11-20 09:30:57,841 INFO L386 tUnfolder$Statistics]: existing Event has 200 ancestors and is cut-off event [2022-11-20 09:30:57,841 INFO L386 tUnfolder$Statistics]: existing Event has 230 ancestors and is cut-off event [2022-11-20 09:30:57,841 INFO L386 tUnfolder$Statistics]: existing Event has 242 ancestors and is cut-off event [2022-11-20 09:30:57,949 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1309] t_funEXIT-->L958-4: Formula: (= v_t_funThread2of2ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem57#1_9| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} AuxVars[] AssignedVars[][414], [t_funThread1of2ForFork0NotInUse, Black: 1620#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1603#(< |ULTIMATE.start_main_~i~1#1| 10), t_funThread2of2ForFork0NotInUse, Black: 1231#(<= |ULTIMATE.start_main_~i~1#1| 7), 459#true, Black: 327#(= |ULTIMATE.start_main_~i~1#1| 0), 2232#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 744#true, 1215#true, Black: 463#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 631#(< |ULTIMATE.start_main_~i~1#1| 10), 753#true, Black: 739#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 736#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 737#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2248#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2272#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2256#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2266#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2262#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2233#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2268#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2258#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2260#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2264#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2250#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2246#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 268#L958-4true, Black: 2244#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2254#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2242#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2278#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 335#true, Black: 2252#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 1066#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1089#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 761#(<= |ULTIMATE.start_main_~i~1#1| 3), 2298#true, Black: 1049#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-20 09:30:57,950 INFO L383 tUnfolder$Statistics]: this new event has 249 ancestors and is cut-off event [2022-11-20 09:30:57,950 INFO L386 tUnfolder$Statistics]: existing Event has 267 ancestors and is cut-off event [2022-11-20 09:30:57,950 INFO L386 tUnfolder$Statistics]: existing Event has 207 ancestors and is cut-off event [2022-11-20 09:30:57,950 INFO L386 tUnfolder$Statistics]: existing Event has 237 ancestors and is cut-off event [2022-11-20 09:30:57,991 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1309] t_funEXIT-->L958-4: Formula: (= v_t_funThread2of2ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem57#1_9| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} AuxVars[] AssignedVars[][414], [Black: 1620#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread1of2ForFork0InUse, Black: 1603#(< |ULTIMATE.start_main_~i~1#1| 10), t_funThread2of2ForFork0NotInUse, Black: 1231#(<= |ULTIMATE.start_main_~i~1#1| 7), 459#true, Black: 327#(= |ULTIMATE.start_main_~i~1#1| 0), 744#true, 1215#true, Black: 463#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 631#(< |ULTIMATE.start_main_~i~1#1| 10), 753#true, Black: 739#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), 2262#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 736#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 737#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2248#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2272#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2256#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2266#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 97#L941-6true, Black: 2233#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2268#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2258#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2232#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2260#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2264#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2250#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 268#L958-4true, Black: 2246#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2244#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2254#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2242#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2278#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 335#true, Black: 2252#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 1066#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1089#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 761#(<= |ULTIMATE.start_main_~i~1#1| 3), 2298#true, Black: 1049#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-20 09:30:57,991 INFO L383 tUnfolder$Statistics]: this new event has 251 ancestors and is cut-off event [2022-11-20 09:30:57,991 INFO L386 tUnfolder$Statistics]: existing Event has 209 ancestors and is cut-off event [2022-11-20 09:30:57,991 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is cut-off event [2022-11-20 09:30:57,991 INFO L386 tUnfolder$Statistics]: existing Event has 251 ancestors and is cut-off event [2022-11-20 09:30:58,053 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1308] t_funEXIT-->L958-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem57#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~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem57#1=|v_ULTIMATE.start_main_#t~mem57#1_7|} AuxVars[] AssignedVars[][380], [t_funThread1of2ForFork0NotInUse, Black: 1620#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1603#(< |ULTIMATE.start_main_~i~1#1| 10), t_funThread2of2ForFork0InUse, Black: 1231#(<= |ULTIMATE.start_main_~i~1#1| 7), 459#true, Black: 327#(= |ULTIMATE.start_main_~i~1#1| 0), 2232#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 744#true, 231#L941-10true, 1215#true, Black: 463#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 631#(< |ULTIMATE.start_main_~i~1#1| 10), 753#true, Black: 739#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 736#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 737#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2248#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2272#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2256#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2266#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2262#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2233#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2268#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2258#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2260#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2264#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2250#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 268#L958-4true, Black: 2246#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2244#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2254#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2242#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2278#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 335#true, Black: 2252#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 1066#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1089#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 761#(<= |ULTIMATE.start_main_~i~1#1| 3), 2298#true, Black: 1049#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-20 09:30:58,053 INFO L383 tUnfolder$Statistics]: this new event has 255 ancestors and is cut-off event [2022-11-20 09:30:58,053 INFO L386 tUnfolder$Statistics]: existing Event has 213 ancestors and is cut-off event [2022-11-20 09:30:58,054 INFO L386 tUnfolder$Statistics]: existing Event has 243 ancestors and is cut-off event [2022-11-20 09:30:58,054 INFO L386 tUnfolder$Statistics]: existing Event has 243 ancestors and is cut-off event [2022-11-20 09:30:58,190 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1150] L947-1-->L947-2: Formula: (and (= (+ (* |v_t_funThread1of2ForFork0_~i~0#1_9| 28) |v_~#cache~0.offset_9|) |v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset_1|) (= |v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base_1| |v_~#cache~0.base_10|)) InVars {~#cache~0.offset=|v_~#cache~0.offset_9|, ~#cache~0.base=|v_~#cache~0.base_10|, t_funThread1of2ForFork0_~i~0#1=|v_t_funThread1of2ForFork0_~i~0#1_9|} OutVars{~#cache~0.offset=|v_~#cache~0.offset_9|, ~#cache~0.base=|v_~#cache~0.base_10|, 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][203], [Black: 1620#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread1of2ForFork0InUse, Black: 1603#(< |ULTIMATE.start_main_~i~1#1| 10), t_funThread2of2ForFork0InUse, Black: 1231#(<= |ULTIMATE.start_main_~i~1#1| 7), 283#L959true, 459#true, Black: 327#(= |ULTIMATE.start_main_~i~1#1| 0), 2232#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 744#true, 231#L941-10true, 1215#true, Black: 463#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 631#(< |ULTIMATE.start_main_~i~1#1| 10), 753#true, Black: 739#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 736#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 737#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2248#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2272#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2256#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2266#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2262#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2233#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2268#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2258#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 38#L947-2true, Black: 2260#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2264#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2250#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2246#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2244#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2254#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2242#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2278#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 335#true, Black: 2252#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 1066#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1089#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 761#(<= |ULTIMATE.start_main_~i~1#1| 3), 2298#true, Black: 1049#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-20 09:30:58,191 INFO L383 tUnfolder$Statistics]: this new event has 244 ancestors and is cut-off event [2022-11-20 09:30:58,191 INFO L386 tUnfolder$Statistics]: existing Event has 244 ancestors and is cut-off event [2022-11-20 09:30:58,191 INFO L386 tUnfolder$Statistics]: existing Event has 202 ancestors and is cut-off event [2022-11-20 09:30:58,192 INFO L386 tUnfolder$Statistics]: existing Event has 232 ancestors and is cut-off event [2022-11-20 09:30:58,266 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([892] L954-17-->L954-18: Formula: (= |v_#valid_8| (store |v_#valid_9| |v_ULTIMATE.start_main_~#t_ids~0#1.base_5| 0)) InVars {ULTIMATE.start_main_~#t_ids~0#1.base=|v_ULTIMATE.start_main_~#t_ids~0#1.base_5|, #valid=|v_#valid_9|} OutVars{ULTIMATE.start_main_~#t_ids~0#1.base=|v_ULTIMATE.start_main_~#t_ids~0#1.base_5|, #valid=|v_#valid_8|} AuxVars[] AssignedVars[#valid][376], [Black: 1620#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread1of2ForFork0InUse, t_funThread2of2ForFork0NotInUse, Black: 1603#(< |ULTIMATE.start_main_~i~1#1| 10), 154#L941-10true, Black: 1231#(<= |ULTIMATE.start_main_~i~1#1| 7), 459#true, Black: 327#(= |ULTIMATE.start_main_~i~1#1| 0), 744#true, 2231#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 1215#true, Black: 463#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 631#(< |ULTIMATE.start_main_~i~1#1| 10), 753#true, Black: 739#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 736#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 737#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2248#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2272#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2256#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2266#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2262#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2233#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2268#(and (= |~#__global_lock~0.offset| 0) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2258#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2232#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2260#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2264#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2250#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2246#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2244#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2254#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2242#(and (= |~#__global_lock~0.offset| 0) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 2278#(and (= |~#__global_lock~0.offset| 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), 335#true, Black: 2252#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= |~#__global_lock~0.offset| 0) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= (select |#valid| 4) 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|)) (< |~#cache~0.base| (+ 5 |~#__global_lock~0.offset|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0) (<= (+ 4 |~#__global_lock~0.offset|) |~#cache~0.base|)), Black: 1066#(< |ULTIMATE.start_main_~i~1#1| 9), 13#L954-18true, Black: 1089#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 761#(<= |ULTIMATE.start_main_~i~1#1| 3), 2298#true, Black: 1049#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-20 09:30:58,267 INFO L383 tUnfolder$Statistics]: this new event has 264 ancestors and is cut-off event [2022-11-20 09:30:58,267 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-20 09:30:58,267 INFO L386 tUnfolder$Statistics]: existing Event has 225 ancestors and is cut-off event [2022-11-20 09:30:58,268 INFO L386 tUnfolder$Statistics]: existing Event has 210 ancestors and is cut-off event [2022-11-20 09:30:58,268 INFO L130 PetriNetUnfolder]: 673/8183 cut-off events. [2022-11-20 09:30:58,268 INFO L131 PetriNetUnfolder]: For 3563/3750 co-relation queries the response was YES. [2022-11-20 09:30:58,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11064 conditions, 8183 events. 673/8183 cut-off events. For 3563/3750 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 91625 event pairs, 88 based on Foata normal form. 19/7086 useless extension candidates. Maximal degree in co-relation 10868. Up to 255 conditions per place. [2022-11-20 09:30:58,435 INFO L137 encePairwiseOnDemand]: 374/377 looper letters, 14 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2022-11-20 09:30:58,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 444 transitions, 1590 flow [2022-11-20 09:30:58,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:58,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:30:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 950 transitions. [2022-11-20 09:30:58,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8399646330680813 [2022-11-20 09:30:58,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 950 transitions. [2022-11-20 09:30:58,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 950 transitions. [2022-11-20 09:30:58,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:58,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 950 transitions. [2022-11-20 09:30:58,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:58,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:58,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:58,451 INFO L175 Difference]: Start difference. First operand has 412 places, 440 transitions, 1550 flow. Second operand 3 states and 950 transitions. [2022-11-20 09:30:58,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 444 transitions, 1590 flow [2022-11-20 09:30:58,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 444 transitions, 1587 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:30:58,493 INFO L231 Difference]: Finished difference. Result has 413 places, 441 transitions, 1559 flow [2022-11-20 09:30:58,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=1547, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1559, PETRI_PLACES=413, PETRI_TRANSITIONS=441} [2022-11-20 09:30:58,494 INFO L288 CegarLoopForPetriNet]: 322 programPoint places, 91 predicate places. [2022-11-20 09:30:58,495 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 441 transitions, 1559 flow [2022-11-20 09:30:58,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:58,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:58,495 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] [2022-11-20 09:30:58,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:58,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:58,700 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)] === [2022-11-20 09:30:58,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:58,701 INFO L85 PathProgramCache]: Analyzing trace with hash -34019281, now seen corresponding path program 1 times [2022-11-20 09:30:58,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:58,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265984585] [2022-11-20 09:30:58,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:58,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:30:58,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:30:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:30:58,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:30:58,800 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:30:58,800 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2022-11-20 09:30:58,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 35 remaining) [2022-11-20 09:30:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 35 remaining) [2022-11-20 09:30:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 35 remaining) [2022-11-20 09:30:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 35 remaining) [2022-11-20 09:30:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 35 remaining) [2022-11-20 09:30:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 35 remaining) [2022-11-20 09:30:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 35 remaining) [2022-11-20 09:30:58,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 35 remaining) [2022-11-20 09:30:58,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 35 remaining) [2022-11-20 09:30:58,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 35 remaining) [2022-11-20 09:30:58,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 35 remaining) [2022-11-20 09:30:58,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 35 remaining) [2022-11-20 09:30:58,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 35 remaining) [2022-11-20 09:30:58,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 35 remaining) [2022-11-20 09:30:58,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 35 remaining) [2022-11-20 09:30:58,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 35 remaining) [2022-11-20 09:30:58,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 35 remaining) [2022-11-20 09:30:58,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 35 remaining) [2022-11-20 09:30:58,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 35 remaining) [2022-11-20 09:30:58,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 35 remaining) [2022-11-20 09:30:58,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 35 remaining) [2022-11-20 09:30:58,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 35 remaining) [2022-11-20 09:30:58,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 35 remaining) [2022-11-20 09:30:58,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 35 remaining) [2022-11-20 09:30:58,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 35 remaining) [2022-11-20 09:30:58,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 35 remaining) [2022-11-20 09:30:58,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 35 remaining) [2022-11-20 09:30:58,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 35 remaining) [2022-11-20 09:30:58,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 35 remaining) [2022-11-20 09:30:58,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 35 remaining) [2022-11-20 09:30:58,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 35 remaining) [2022-11-20 09:30:58,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 35 remaining) [2022-11-20 09:30:58,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 35 remaining) [2022-11-20 09:30:58,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 35 remaining) [2022-11-20 09:30:58,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 09:30:58,811 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:58,812 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 09:30:58,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-20 09:30:58,864 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 09:30:58,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 461 transitions, 952 flow [2022-11-20 09:30:59,051 INFO L130 PetriNetUnfolder]: 168/1038 cut-off events. [2022-11-20 09:30:59,051 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-20 09:30:59,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 1038 events. 168/1038 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5987 event pairs, 1 based on Foata normal form. 0/786 useless extension candidates. Maximal degree in co-relation 730. Up to 16 conditions per place. [2022-11-20 09:30:59,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 461 transitions, 952 flow [2022-11-20 09:30:59,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 393 places, 461 transitions, 952 flow [2022-11-20 09:30:59,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:30:59,092 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;@6562796a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:30:59,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-11-20 09:30:59,094 INFO L130 PetriNetUnfolder]: 1/30 cut-off events. [2022-11-20 09:30:59,095 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:30:59,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:59,095 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] [2022-11-20 09:30:59,095 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)] === [2022-11-20 09:30:59,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1806513134, now seen corresponding path program 1 times [2022-11-20 09:30:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:59,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716902901] [2022-11-20 09:30:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:59,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:59,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:59,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716902901] [2022-11-20 09:30:59,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716902901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:59,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:59,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:59,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455068795] [2022-11-20 09:30:59,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:59,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:59,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:59,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:59,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:59,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:30:59,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 461 transitions, 952 flow. Second operand has 4 states, 4 states have (on average 377.5) internal successors, (1510), 4 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:59,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:30:59,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:59,355 INFO L130 PetriNetUnfolder]: 27/893 cut-off events. [2022-11-20 09:30:59,355 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-20 09:30:59,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 893 events. 27/893 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5192 event pairs, 1 based on Foata normal form. 255/1026 useless extension candidates. Maximal degree in co-relation 653. Up to 28 conditions per place. [2022-11-20 09:30:59,376 INFO L137 encePairwiseOnDemand]: 392/461 looper letters, 21 selfloop transitions, 4 changer transitions 0/401 dead transitions. [2022-11-20 09:30:59,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 401 transitions, 882 flow [2022-11-20 09:30:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:59,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1971 transitions. [2022-11-20 09:30:59,380 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8550976138828633 [2022-11-20 09:30:59,380 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1971 transitions. [2022-11-20 09:30:59,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1971 transitions. [2022-11-20 09:30:59,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:59,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1971 transitions. [2022-11-20 09:30:59,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 394.2) internal successors, (1971), 5 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,388 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,388 INFO L175 Difference]: Start difference. First operand has 393 places, 461 transitions, 952 flow. Second operand 5 states and 1971 transitions. [2022-11-20 09:30:59,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 401 transitions, 882 flow [2022-11-20 09:30:59,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 401 transitions, 882 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:59,395 INFO L231 Difference]: Finished difference. Result has 395 places, 397 transitions, 850 flow [2022-11-20 09:30:59,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=850, PETRI_PLACES=395, PETRI_TRANSITIONS=397} [2022-11-20 09:30:59,396 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 2 predicate places. [2022-11-20 09:30:59,397 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 397 transitions, 850 flow [2022-11-20 09:30:59,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 377.5) internal successors, (1510), 4 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,397 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:59,397 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] [2022-11-20 09:30:59,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 09:30:59,398 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)] === [2022-11-20 09:30:59,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:59,398 INFO L85 PathProgramCache]: Analyzing trace with hash -44348851, now seen corresponding path program 1 times [2022-11-20 09:30:59,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:59,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567362539] [2022-11-20 09:30:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:59,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 09:30:59,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:59,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567362539] [2022-11-20 09:30:59,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567362539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:59,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:59,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:59,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582150044] [2022-11-20 09:30:59,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:59,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:59,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:59,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:59,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:59,435 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:30:59,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 397 transitions, 850 flow. Second operand has 4 states, 4 states have (on average 379.25) internal successors, (1517), 4 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:59,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:30:59,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:59,649 INFO L130 PetriNetUnfolder]: 27/892 cut-off events. [2022-11-20 09:30:59,650 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-11-20 09:30:59,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 970 conditions, 892 events. 27/892 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5180 event pairs, 1 based on Foata normal form. 1/774 useless extension candidates. Maximal degree in co-relation 915. Up to 20 conditions per place. [2022-11-20 09:30:59,671 INFO L137 encePairwiseOnDemand]: 455/461 looper letters, 13 selfloop transitions, 8 changer transitions 0/397 dead transitions. [2022-11-20 09:30:59,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 397 transitions, 890 flow [2022-11-20 09:30:59,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1899 transitions. [2022-11-20 09:30:59,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8238611713665943 [2022-11-20 09:30:59,675 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1899 transitions. [2022-11-20 09:30:59,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1899 transitions. [2022-11-20 09:30:59,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:59,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1899 transitions. [2022-11-20 09:30:59,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 379.8) internal successors, (1899), 5 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,682 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,682 INFO L175 Difference]: Start difference. First operand has 395 places, 397 transitions, 850 flow. Second operand 5 states and 1899 transitions. [2022-11-20 09:30:59,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 397 transitions, 890 flow [2022-11-20 09:30:59,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 397 transitions, 888 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:30:59,692 INFO L231 Difference]: Finished difference. Result has 398 places, 397 transitions, 868 flow [2022-11-20 09:30:59,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=868, PETRI_PLACES=398, PETRI_TRANSITIONS=397} [2022-11-20 09:30:59,693 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 5 predicate places. [2022-11-20 09:30:59,693 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 397 transitions, 868 flow [2022-11-20 09:30:59,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 379.25) internal successors, (1517), 4 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,694 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:59,694 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] [2022-11-20 09:30:59,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 09:30:59,694 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)] === [2022-11-20 09:30:59,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:59,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1374812802, now seen corresponding path program 1 times [2022-11-20 09:30:59,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:59,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131611209] [2022-11-20 09:30:59,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:59,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:59,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:59,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131611209] [2022-11-20 09:30:59,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131611209] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:59,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459538505] [2022-11-20 09:30:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:59,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:59,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:59,757 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:59,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 09:30:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:59,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:59,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:59,909 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:59,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:59,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459538505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:59,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:59,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-20 09:30:59,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76330428] [2022-11-20 09:30:59,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:59,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:59,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:59,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:59,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:30:59,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:30:59,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 397 transitions, 868 flow. Second operand has 5 states, 5 states have (on average 378.8) internal successors, (1894), 5 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:59,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:30:59,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:00,126 INFO L130 PetriNetUnfolder]: 27/891 cut-off events. [2022-11-20 09:31:00,126 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-11-20 09:31:00,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 891 events. 27/891 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5179 event pairs, 1 based on Foata normal form. 1/773 useless extension candidates. Maximal degree in co-relation 913. Up to 23 conditions per place. [2022-11-20 09:31:00,146 INFO L137 encePairwiseOnDemand]: 457/461 looper letters, 15 selfloop transitions, 5 changer transitions 0/396 dead transitions. [2022-11-20 09:31:00,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 396 transitions, 904 flow [2022-11-20 09:31:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:31:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 09:31:00,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1521 transitions. [2022-11-20 09:31:00,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8248373101952278 [2022-11-20 09:31:00,150 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1521 transitions. [2022-11-20 09:31:00,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1521 transitions. [2022-11-20 09:31:00,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:00,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1521 transitions. [2022-11-20 09:31:00,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 380.25) internal successors, (1521), 4 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 461.0) internal successors, (2305), 5 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,155 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 461.0) internal successors, (2305), 5 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,156 INFO L175 Difference]: Start difference. First operand has 398 places, 397 transitions, 868 flow. Second operand 4 states and 1521 transitions. [2022-11-20 09:31:00,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 396 transitions, 904 flow [2022-11-20 09:31:00,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 396 transitions, 892 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:31:00,163 INFO L231 Difference]: Finished difference. Result has 397 places, 396 transitions, 862 flow [2022-11-20 09:31:00,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=862, PETRI_PLACES=397, PETRI_TRANSITIONS=396} [2022-11-20 09:31:00,164 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 4 predicate places. [2022-11-20 09:31:00,164 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 396 transitions, 862 flow [2022-11-20 09:31:00,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 378.8) internal successors, (1894), 5 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:00,165 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] [2022-11-20 09:31:00,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:00,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-20 09:31:00,370 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)] === [2022-11-20 09:31:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:00,370 INFO L85 PathProgramCache]: Analyzing trace with hash 649511327, now seen corresponding path program 1 times [2022-11-20 09:31:00,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:00,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527457479] [2022-11-20 09:31:00,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:00,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:00,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:00,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527457479] [2022-11-20 09:31:00,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527457479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:00,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096870698] [2022-11-20 09:31:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:00,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:00,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:00,429 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:00,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 09:31:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:00,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:00,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:00,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:00,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:00,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096870698] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:31:00,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:31:00,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 09:31:00,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34277121] [2022-11-20 09:31:00,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:31:00,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:31:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:31:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:00,609 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:31:00,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 396 transitions, 862 flow. Second operand has 10 states, 10 states have (on average 378.7) internal successors, (3787), 10 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:00,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:31:00,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:00,960 INFO L130 PetriNetUnfolder]: 27/899 cut-off events. [2022-11-20 09:31:00,961 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-20 09:31:00,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 899 events. 27/899 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5165 event pairs, 1 based on Foata normal form. 2/782 useless extension candidates. Maximal degree in co-relation 903. Up to 20 conditions per place. [2022-11-20 09:31:00,979 INFO L137 encePairwiseOnDemand]: 455/461 looper letters, 22 selfloop transitions, 9 changer transitions 0/407 dead transitions. [2022-11-20 09:31:00,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 407 transitions, 962 flow [2022-11-20 09:31:00,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:31:00,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 09:31:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3417 transitions. [2022-11-20 09:31:00,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8235719450469993 [2022-11-20 09:31:00,986 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3417 transitions. [2022-11-20 09:31:00,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3417 transitions. [2022-11-20 09:31:00,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:00,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3417 transitions. [2022-11-20 09:31:01,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 379.6666666666667) internal successors, (3417), 9 states have internal predecessors, (3417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 461.0) internal successors, (4610), 10 states have internal predecessors, (4610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,011 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 461.0) internal successors, (4610), 10 states have internal predecessors, (4610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,011 INFO L175 Difference]: Start difference. First operand has 397 places, 396 transitions, 862 flow. Second operand 9 states and 3417 transitions. [2022-11-20 09:31:01,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 407 transitions, 962 flow [2022-11-20 09:31:01,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 407 transitions, 948 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:31:01,021 INFO L231 Difference]: Finished difference. Result has 406 places, 400 transitions, 908 flow [2022-11-20 09:31:01,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=908, PETRI_PLACES=406, PETRI_TRANSITIONS=400} [2022-11-20 09:31:01,022 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 13 predicate places. [2022-11-20 09:31:01,022 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 400 transitions, 908 flow [2022-11-20 09:31:01,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 378.7) internal successors, (3787), 10 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:01,024 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] [2022-11-20 09:31:01,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:01,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:01,229 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)] === [2022-11-20 09:31:01,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:01,230 INFO L85 PathProgramCache]: Analyzing trace with hash 904882367, now seen corresponding path program 2 times [2022-11-20 09:31:01,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:01,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720347246] [2022-11-20 09:31:01,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:01,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 09:31:01,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:01,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720347246] [2022-11-20 09:31:01,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720347246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:01,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:01,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:01,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776548512] [2022-11-20 09:31:01,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:01,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:31:01,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:31:01,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:31:01,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:31:01,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 400 transitions, 908 flow. Second operand has 4 states, 4 states have (on average 377.75) internal successors, (1511), 4 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:01,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:31:01,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:01,512 INFO L130 PetriNetUnfolder]: 23/783 cut-off events. [2022-11-20 09:31:01,513 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2022-11-20 09:31:01,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 783 events. 23/783 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4300 event pairs, 1 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 819. Up to 40 conditions per place. [2022-11-20 09:31:01,533 INFO L137 encePairwiseOnDemand]: 454/461 looper letters, 21 selfloop transitions, 4 changer transitions 0/407 dead transitions. [2022-11-20 09:31:01,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 407 transitions, 972 flow [2022-11-20 09:31:01,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:01,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:31:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1908 transitions. [2022-11-20 09:31:01,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.827765726681128 [2022-11-20 09:31:01,537 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1908 transitions. [2022-11-20 09:31:01,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1908 transitions. [2022-11-20 09:31:01,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:01,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1908 transitions. [2022-11-20 09:31:01,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 381.6) internal successors, (1908), 5 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,544 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,545 INFO L175 Difference]: Start difference. First operand has 406 places, 400 transitions, 908 flow. Second operand 5 states and 1908 transitions. [2022-11-20 09:31:01,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 407 transitions, 972 flow [2022-11-20 09:31:01,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 407 transitions, 956 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-20 09:31:01,552 INFO L231 Difference]: Finished difference. Result has 409 places, 403 transitions, 924 flow [2022-11-20 09:31:01,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=924, PETRI_PLACES=409, PETRI_TRANSITIONS=403} [2022-11-20 09:31:01,553 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 16 predicate places. [2022-11-20 09:31:01,553 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 403 transitions, 924 flow [2022-11-20 09:31:01,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 377.75) internal successors, (1511), 4 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:01,558 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] [2022-11-20 09:31:01,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 09:31:01,558 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)] === [2022-11-20 09:31:01,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 79939226, now seen corresponding path program 1 times [2022-11-20 09:31:01,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:01,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913733009] [2022-11-20 09:31:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:01,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 09:31:01,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:01,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913733009] [2022-11-20 09:31:01,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913733009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:01,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:01,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:01,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401191838] [2022-11-20 09:31:01,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:01,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:31:01,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:01,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:31:01,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:31:01,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:31:01,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 403 transitions, 924 flow. Second operand has 4 states, 4 states have (on average 379.75) internal successors, (1519), 4 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:01,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:31:01,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:01,826 INFO L130 PetriNetUnfolder]: 23/781 cut-off events. [2022-11-20 09:31:01,827 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2022-11-20 09:31:01,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 781 events. 23/781 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4292 event pairs, 1 based on Foata normal form. 2/689 useless extension candidates. Maximal degree in co-relation 829. Up to 20 conditions per place. [2022-11-20 09:31:01,848 INFO L137 encePairwiseOnDemand]: 455/461 looper letters, 13 selfloop transitions, 8 changer transitions 0/403 dead transitions. [2022-11-20 09:31:01,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 403 transitions, 964 flow [2022-11-20 09:31:01,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:31:01,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1899 transitions. [2022-11-20 09:31:01,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8238611713665943 [2022-11-20 09:31:01,852 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1899 transitions. [2022-11-20 09:31:01,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1899 transitions. [2022-11-20 09:31:01,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:01,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1899 transitions. [2022-11-20 09:31:01,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 379.8) internal successors, (1899), 5 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,858 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,858 INFO L175 Difference]: Start difference. First operand has 409 places, 403 transitions, 924 flow. Second operand 5 states and 1899 transitions. [2022-11-20 09:31:01,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 403 transitions, 964 flow [2022-11-20 09:31:01,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 403 transitions, 962 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:31:01,866 INFO L231 Difference]: Finished difference. Result has 412 places, 403 transitions, 942 flow [2022-11-20 09:31:01,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=942, PETRI_PLACES=412, PETRI_TRANSITIONS=403} [2022-11-20 09:31:01,867 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 19 predicate places. [2022-11-20 09:31:01,868 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 403 transitions, 942 flow [2022-11-20 09:31:01,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 379.75) internal successors, (1519), 4 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:01,868 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] [2022-11-20 09:31:01,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 09:31:01,869 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)] === [2022-11-20 09:31:01,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:01,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1816849790, now seen corresponding path program 1 times [2022-11-20 09:31:01,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:01,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230262879] [2022-11-20 09:31:01,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:01,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:01,997 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:31:01,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:01,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230262879] [2022-11-20 09:31:01,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230262879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:01,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780029486] [2022-11-20 09:31:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:01,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:01,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:01,999 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:02,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 09:31:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:02,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:31:02,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:31:02,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:02,281 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:31:02,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780029486] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:31:02,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:31:02,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 09:31:02,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003359004] [2022-11-20 09:31:02,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:31:02,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:31:02,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:02,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:31:02,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:31:02,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:31:02,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 403 transitions, 942 flow. Second operand has 18 states, 18 states have (on average 379.1111111111111) internal successors, (6824), 18 states have internal predecessors, (6824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:02,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:02,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:31:02,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:02,733 INFO L130 PetriNetUnfolder]: 23/809 cut-off events. [2022-11-20 09:31:02,734 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-11-20 09:31:02,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 809 events. 23/809 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4296 event pairs, 1 based on Foata normal form. 4/719 useless extension candidates. Maximal degree in co-relation 819. Up to 20 conditions per place. [2022-11-20 09:31:02,756 INFO L137 encePairwiseOnDemand]: 455/461 looper letters, 38 selfloop transitions, 21 changer transitions 0/438 dead transitions. [2022-11-20 09:31:02,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 438 transitions, 1214 flow [2022-11-20 09:31:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 09:31:02,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 09:31:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7959 transitions. [2022-11-20 09:31:02,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8221258134490239 [2022-11-20 09:31:02,769 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 7959 transitions. [2022-11-20 09:31:02,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 7959 transitions. [2022-11-20 09:31:02,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:02,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 7959 transitions. [2022-11-20 09:31:02,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 379.0) internal successors, (7959), 21 states have internal predecessors, (7959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:02,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 461.0) internal successors, (10142), 22 states have internal predecessors, (10142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:02,794 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 461.0) internal successors, (10142), 22 states have internal predecessors, (10142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:02,794 INFO L175 Difference]: Start difference. First operand has 412 places, 403 transitions, 942 flow. Second operand 21 states and 7959 transitions. [2022-11-20 09:31:02,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 438 transitions, 1214 flow [2022-11-20 09:31:02,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 438 transitions, 1202 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:31:02,803 INFO L231 Difference]: Finished difference. Result has 434 places, 416 transitions, 1086 flow [2022-11-20 09:31:02,804 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1086, PETRI_PLACES=434, PETRI_TRANSITIONS=416} [2022-11-20 09:31:02,805 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 41 predicate places. [2022-11-20 09:31:02,805 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 416 transitions, 1086 flow [2022-11-20 09:31:02,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 379.1111111111111) internal successors, (6824), 18 states have internal predecessors, (6824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:02,807 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:02,807 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] [2022-11-20 09:31:02,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:03,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:03,018 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)] === [2022-11-20 09:31:03,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:03,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1719479230, now seen corresponding path program 2 times [2022-11-20 09:31:03,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:03,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997294650] [2022-11-20 09:31:03,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:03,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:31:03,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:03,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997294650] [2022-11-20 09:31:03,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997294650] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:03,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2355511] [2022-11-20 09:31:03,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:31:03,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:03,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:03,328 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:03,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 09:31:03,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 09:31:03,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:31:03,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 09:31:03,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:31:03,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:03,846 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 09:31:03,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2355511] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:31:03,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:31:03,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 09:31:03,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424600490] [2022-11-20 09:31:03,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:31:03,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 09:31:03,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:03,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 09:31:03,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 09:31:03,854 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:31:03,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 416 transitions, 1086 flow. Second operand has 23 states, 23 states have (on average 379.3478260869565) internal successors, (8725), 23 states have internal predecessors, (8725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:03,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:03,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:31:03,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:04,440 INFO L130 PetriNetUnfolder]: 23/830 cut-off events. [2022-11-20 09:31:04,441 INFO L131 PetriNetUnfolder]: For 274/274 co-relation queries the response was YES. [2022-11-20 09:31:04,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 830 events. 23/830 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4308 event pairs, 1 based on Foata normal form. 3/739 useless extension candidates. Maximal degree in co-relation 822. Up to 20 conditions per place. [2022-11-20 09:31:04,462 INFO L137 encePairwiseOnDemand]: 455/461 looper letters, 50 selfloop transitions, 30 changer transitions 0/459 dead transitions. [2022-11-20 09:31:04,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 459 transitions, 1456 flow [2022-11-20 09:31:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 09:31:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 09:31:04,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11363 transitions. [2022-11-20 09:31:04,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216196673897325 [2022-11-20 09:31:04,482 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 11363 transitions. [2022-11-20 09:31:04,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 11363 transitions. [2022-11-20 09:31:04,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:04,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 11363 transitions. [2022-11-20 09:31:04,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 378.76666666666665) internal successors, (11363), 30 states have internal predecessors, (11363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:04,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 461.0) internal successors, (14291), 31 states have internal predecessors, (14291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:04,521 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 461.0) internal successors, (14291), 31 states have internal predecessors, (14291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:04,521 INFO L175 Difference]: Start difference. First operand has 434 places, 416 transitions, 1086 flow. Second operand 30 states and 11363 transitions. [2022-11-20 09:31:04,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 459 transitions, 1456 flow [2022-11-20 09:31:04,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 459 transitions, 1376 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-20 09:31:04,531 INFO L231 Difference]: Finished difference. Result has 459 places, 426 transitions, 1184 flow [2022-11-20 09:31:04,532 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1184, PETRI_PLACES=459, PETRI_TRANSITIONS=426} [2022-11-20 09:31:04,535 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 66 predicate places. [2022-11-20 09:31:04,535 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 426 transitions, 1184 flow [2022-11-20 09:31:04,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 379.3478260869565) internal successors, (8725), 23 states have internal predecessors, (8725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:04,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:04,537 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] [2022-11-20 09:31:04,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:04,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-20 09:31:04,742 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)] === [2022-11-20 09:31:04,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:04,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1808272419, now seen corresponding path program 3 times [2022-11-20 09:31:04,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:04,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824684711] [2022-11-20 09:31:04,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:04,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:04,856 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:31:04,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:04,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824684711] [2022-11-20 09:31:04,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824684711] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:04,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711968073] [2022-11-20 09:31:04,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 09:31:04,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:04,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:04,859 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:04,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 09:31:04,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 09:31:04,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:31:04,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:04,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:31:05,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:05,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711968073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:05,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:05,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-20 09:31:05,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813272052] [2022-11-20 09:31:05,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:05,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:05,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:05,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:05,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:31:05,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 461 [2022-11-20 09:31:05,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 426 transitions, 1184 flow. Second operand has 5 states, 5 states have (on average 379.2) internal successors, (1896), 5 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:05,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:05,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 461 [2022-11-20 09:31:05,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:05,281 INFO L130 PetriNetUnfolder]: 23/828 cut-off events. [2022-11-20 09:31:05,281 INFO L131 PetriNetUnfolder]: For 235/235 co-relation queries the response was YES. [2022-11-20 09:31:05,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 828 events. 23/828 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4291 event pairs, 1 based on Foata normal form. 2/736 useless extension candidates. Maximal degree in co-relation 837. Up to 30 conditions per place. [2022-11-20 09:31:05,294 INFO L137 encePairwiseOnDemand]: 457/461 looper letters, 15 selfloop transitions, 5 changer transitions 0/425 dead transitions. [2022-11-20 09:31:05,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 425 transitions, 1220 flow [2022-11-20 09:31:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:31:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 09:31:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1521 transitions. [2022-11-20 09:31:05,297 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8248373101952278 [2022-11-20 09:31:05,297 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1521 transitions. [2022-11-20 09:31:05,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1521 transitions. [2022-11-20 09:31:05,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:05,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1521 transitions. [2022-11-20 09:31:05,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 380.25) internal successors, (1521), 4 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:05,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 461.0) internal successors, (2305), 5 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:05,302 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 461.0) internal successors, (2305), 5 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:05,302 INFO L175 Difference]: Start difference. First operand has 459 places, 426 transitions, 1184 flow. Second operand 4 states and 1521 transitions. [2022-11-20 09:31:05,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 425 transitions, 1220 flow [2022-11-20 09:31:05,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 425 transitions, 1174 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 09:31:05,313 INFO L231 Difference]: Finished difference. Result has 443 places, 425 transitions, 1144 flow [2022-11-20 09:31:05,313 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1144, PETRI_PLACES=443, PETRI_TRANSITIONS=425} [2022-11-20 09:31:05,314 INFO L288 CegarLoopForPetriNet]: 393 programPoint places, 50 predicate places. [2022-11-20 09:31:05,314 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 425 transitions, 1144 flow [2022-11-20 09:31:05,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 379.2) internal successors, (1896), 5 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:05,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:05,315 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] [2022-11-20 09:31:05,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:05,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f29fbb4-f4bd-402c-9f98-4bd75179e3ac/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-20 09:31:05,520 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)] === [2022-11-20 09:31:05,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:05,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1801242477, now seen corresponding path program 1 times [2022-11-20 09:31:05,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:05,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895123290] [2022-11-20 09:31:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:05,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:31:06,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:06,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895123290] [2022-11-20 09:31:06,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895123290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:06,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:06,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:31:06,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049682134] [2022-11-20 09:31:06,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:06,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:31:06,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:06,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:31:06,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:31:06,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 461 [2022-11-20 09:31:06,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 425 transitions, 1144 flow. Second operand has 13 states, 13 states have (on average 298.15384615384613) internal successors, (3876), 13 states have internal predecessors, (3876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:06,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:06,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 461 [2022-11-20 09:31:06,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand