./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8 --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 f2d05599d6fce1204a0d86fe3e19cae407be0ec265e139da4f0fd53a7d101655 --- 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-e04fb08 [2022-11-16 11:48:17,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:48:17,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:48:17,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:48:17,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:48:17,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:48:17,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:48:17,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:48:17,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:48:17,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:48:17,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:48:17,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:48:17,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:48:17,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:48:17,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:48:17,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:48:17,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:48:17,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:48:17,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:48:17,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:48:17,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:48:17,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:48:17,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:48:17,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:48:17,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:48:17,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:48:17,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:48:17,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:48:17,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:48:17,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:48:17,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:48:17,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:48:17,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:48:17,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:48:17,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:48:17,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:48:17,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:48:17,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:48:17,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:48:17,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:48:17,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:48:17,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:48:17,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:48:17,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:48:17,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:48:17,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:48:17,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:48:17,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:48:17,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:48:17,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:48:17,406 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:48:17,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:48:17,406 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:48:17,407 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:48:17,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:48:17,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:48:17,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:48:17,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:48:17,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:48:17,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:48:17,408 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:48:17,409 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:48:17,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:48:17,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:48:17,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:48:17,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:48:17,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:48:17,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:48:17,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:17,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:48:17,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:48:17,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:48:17,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:48:17,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:48:17,412 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:48:17,412 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:48:17,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:48:17,413 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_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2d05599d6fce1204a0d86fe3e19cae407be0ec265e139da4f0fd53a7d101655 [2022-11-16 11:48:17,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:48:17,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:48:17,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:48:17,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:48:17,799 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:48:17,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2022-11-16 11:48:17,911 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/data/c59731555/deb5170e248d4261bc8a03bce9a4e224/FLAG99bbade79 [2022-11-16 11:48:18,415 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:48:18,416 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2022-11-16 11:48:18,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/data/c59731555/deb5170e248d4261bc8a03bce9a4e224/FLAG99bbade79 [2022-11-16 11:48:18,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/data/c59731555/deb5170e248d4261bc8a03bce9a4e224 [2022-11-16 11:48:18,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:48:18,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:48:18,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:18,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:48:18,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:48:18,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:18" (1/1) ... [2022-11-16 11:48:18,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b0db54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:18, skipping insertion in model container [2022-11-16 11:48:18,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:18" (1/1) ... [2022-11-16 11:48:18,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:48:18,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:48:19,101 WARN L229 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_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2836,2849] [2022-11-16 11:48:19,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:19,116 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:48:19,144 WARN L229 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_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2836,2849] [2022-11-16 11:48:19,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:19,165 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:48:19,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19 WrapperNode [2022-11-16 11:48:19,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:19,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:19,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:48:19,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:48:19,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,227 INFO L138 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 298 [2022-11-16 11:48:19,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:19,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:48:19,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:48:19,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:48:19,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:48:19,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:48:19,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:48:19,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:48:19,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (1/1) ... [2022-11-16 11:48:19,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:19,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:48:19,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:48:19,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:48:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:48:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:48:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:48:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:48:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:48:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:48:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:48:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:48:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:48:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:48:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:48:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:48:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:48:19,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:48:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:48:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:48:19,414 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:48:19,575 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:48:19,577 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:48:20,445 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:48:22,152 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:48:22,153 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:48:22,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:22 BoogieIcfgContainer [2022-11-16 11:48:22,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:48:22,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:48:22,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:48:22,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:48:22,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:48:18" (1/3) ... [2022-11-16 11:48:22,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa34fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:48:22, skipping insertion in model container [2022-11-16 11:48:22,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:19" (2/3) ... [2022-11-16 11:48:22,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa34fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:48:22, skipping insertion in model container [2022-11-16 11:48:22,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:22" (3/3) ... [2022-11-16 11:48:22,172 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2022-11-16 11:48:22,184 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:48:22,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:48:22,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-16 11:48:22,198 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:48:22,779 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:48:22,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 145 transitions, 314 flow [2022-11-16 11:48:22,950 INFO L130 PetriNetUnfolder]: 1/142 cut-off events. [2022-11-16 11:48:22,951 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:48:22,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 1/142 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 213 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-16 11:48:22,955 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 145 transitions, 314 flow [2022-11-16 11:48:22,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 121 transitions, 257 flow [2022-11-16 11:48:22,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:48:22,982 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;@3b5e658, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:48:22,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2022-11-16 11:48:22,996 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-11-16 11:48:22,996 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:48:22,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:22,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:22,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:23,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:23,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671693, now seen corresponding path program 1 times [2022-11-16 11:48:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:23,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480801814] [2022-11-16 11:48:23,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:23,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:23,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:23,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480801814] [2022-11-16 11:48:23,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480801814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:23,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:23,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:23,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570644753] [2022-11-16 11:48:23,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:23,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:23,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:23,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:23,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:23,711 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:23,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 121 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:23,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:23,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:23,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:27,759 INFO L130 PetriNetUnfolder]: 1682/2979 cut-off events. [2022-11-16 11:48:27,759 INFO L131 PetriNetUnfolder]: For 1111/1831 co-relation queries the response was YES. [2022-11-16 11:48:27,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5953 conditions, 2979 events. 1682/2979 cut-off events. For 1111/1831 co-relation queries the response was YES. Maximal size of possible extension queue 676. Compared 19586 event pairs, 1682 based on Foata normal form. 0/602 useless extension candidates. Maximal degree in co-relation 5774. Up to 2685 conditions per place. [2022-11-16 11:48:27,793 INFO L137 encePairwiseOnDemand]: 128/145 looper letters, 32 selfloop transitions, 3 changer transitions 0/107 dead transitions. [2022-11-16 11:48:27,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 107 transitions, 299 flow [2022-11-16 11:48:27,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:27,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 421 transitions. [2022-11-16 11:48:27,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7258620689655172 [2022-11-16 11:48:27,816 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 421 transitions. [2022-11-16 11:48:27,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 421 transitions. [2022-11-16 11:48:27,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:27,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 421 transitions. [2022-11-16 11:48:27,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:27,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:27,842 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:27,844 INFO L175 Difference]: Start difference. First operand has 131 places, 121 transitions, 257 flow. Second operand 4 states and 421 transitions. [2022-11-16 11:48:27,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 107 transitions, 299 flow [2022-11-16 11:48:27,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 107 transitions, 290 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:48:27,857 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 226 flow [2022-11-16 11:48:27,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2022-11-16 11:48:27,864 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -16 predicate places. [2022-11-16 11:48:27,864 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 226 flow [2022-11-16 11:48:27,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:27,865 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:27,866 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:27,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:48:27,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:27,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:27,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671703, now seen corresponding path program 1 times [2022-11-16 11:48:27,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:27,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667756259] [2022-11-16 11:48:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:28,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:28,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:28,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667756259] [2022-11-16 11:48:28,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667756259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:28,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:28,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:28,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640457175] [2022-11-16 11:48:28,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:28,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:28,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:28,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:28,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:28,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:28,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:28,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:28,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:28,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:31,411 INFO L130 PetriNetUnfolder]: 1358/2451 cut-off events. [2022-11-16 11:48:31,412 INFO L131 PetriNetUnfolder]: For 90/657 co-relation queries the response was YES. [2022-11-16 11:48:31,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4791 conditions, 2451 events. 1358/2451 cut-off events. For 90/657 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 15811 event pairs, 1358 based on Foata normal form. 0/542 useless extension candidates. Maximal degree in co-relation 4753. Up to 2179 conditions per place. [2022-11-16 11:48:31,436 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 30 selfloop transitions, 3 changer transitions 0/105 dead transitions. [2022-11-16 11:48:31,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 105 transitions, 288 flow [2022-11-16 11:48:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:31,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 407 transitions. [2022-11-16 11:48:31,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7017241379310345 [2022-11-16 11:48:31,440 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 407 transitions. [2022-11-16 11:48:31,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 407 transitions. [2022-11-16 11:48:31,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:31,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 407 transitions. [2022-11-16 11:48:31,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.75) internal successors, (407), 4 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:31,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:31,445 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:31,445 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 226 flow. Second operand 4 states and 407 transitions. [2022-11-16 11:48:31,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 105 transitions, 288 flow [2022-11-16 11:48:31,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 105 transitions, 282 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:31,449 INFO L231 Difference]: Finished difference. Result has 113 places, 105 transitions, 222 flow [2022-11-16 11:48:31,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=113, PETRI_TRANSITIONS=105} [2022-11-16 11:48:31,450 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -18 predicate places. [2022-11-16 11:48:31,451 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 105 transitions, 222 flow [2022-11-16 11:48:31,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:31,451 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:31,452 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:31,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:48:31,452 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:31,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671704, now seen corresponding path program 1 times [2022-11-16 11:48:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:31,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357618758] [2022-11-16 11:48:31,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:31,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:31,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:31,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:31,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357618758] [2022-11-16 11:48:31,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357618758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:31,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:31,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:31,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957395814] [2022-11-16 11:48:31,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:31,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:31,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:31,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:31,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:31,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:31,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:31,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:31,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:31,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:33,441 INFO L130 PetriNetUnfolder]: 1068/1975 cut-off events. [2022-11-16 11:48:33,441 INFO L131 PetriNetUnfolder]: For 82/514 co-relation queries the response was YES. [2022-11-16 11:48:33,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3842 conditions, 1975 events. 1068/1975 cut-off events. For 82/514 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 12330 event pairs, 1068 based on Foata normal form. 0/484 useless extension candidates. Maximal degree in co-relation 3795. Up to 1725 conditions per place. [2022-11-16 11:48:33,464 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 28 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2022-11-16 11:48:33,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 103 transitions, 280 flow [2022-11-16 11:48:33,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:33,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 405 transitions. [2022-11-16 11:48:33,469 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6982758620689655 [2022-11-16 11:48:33,469 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 405 transitions. [2022-11-16 11:48:33,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 405 transitions. [2022-11-16 11:48:33,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:33,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 405 transitions. [2022-11-16 11:48:33,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:33,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:33,473 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:33,473 INFO L175 Difference]: Start difference. First operand has 113 places, 105 transitions, 222 flow. Second operand 4 states and 405 transitions. [2022-11-16 11:48:33,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 103 transitions, 280 flow [2022-11-16 11:48:33,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 103 transitions, 274 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:33,480 INFO L231 Difference]: Finished difference. Result has 111 places, 103 transitions, 218 flow [2022-11-16 11:48:33,480 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=111, PETRI_TRANSITIONS=103} [2022-11-16 11:48:33,483 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -20 predicate places. [2022-11-16 11:48:33,483 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 103 transitions, 218 flow [2022-11-16 11:48:33,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:33,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:33,484 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:33,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:48:33,485 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:33,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:33,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671696, now seen corresponding path program 1 times [2022-11-16 11:48:33,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:33,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555300393] [2022-11-16 11:48:33,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:33,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:33,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:33,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555300393] [2022-11-16 11:48:33,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555300393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:33,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:33,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:33,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154207408] [2022-11-16 11:48:33,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:33,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:33,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:33,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:33,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:33,600 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:33,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 103 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:33,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:33,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:33,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:34,702 INFO L130 PetriNetUnfolder]: 815/1542 cut-off events. [2022-11-16 11:48:34,702 INFO L131 PetriNetUnfolder]: For 72/392 co-relation queries the response was YES. [2022-11-16 11:48:34,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 1542 events. 815/1542 cut-off events. For 72/392 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 9175 event pairs, 815 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 2934. Up to 1328 conditions per place. [2022-11-16 11:48:34,714 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 26 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2022-11-16 11:48:34,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 101 transitions, 272 flow [2022-11-16 11:48:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 403 transitions. [2022-11-16 11:48:34,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6948275862068966 [2022-11-16 11:48:34,717 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 403 transitions. [2022-11-16 11:48:34,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 403 transitions. [2022-11-16 11:48:34,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:34,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 403 transitions. [2022-11-16 11:48:34,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:34,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:34,721 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:34,721 INFO L175 Difference]: Start difference. First operand has 111 places, 103 transitions, 218 flow. Second operand 4 states and 403 transitions. [2022-11-16 11:48:34,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 101 transitions, 272 flow [2022-11-16 11:48:34,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 101 transitions, 266 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:34,724 INFO L231 Difference]: Finished difference. Result has 109 places, 101 transitions, 214 flow [2022-11-16 11:48:34,725 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=109, PETRI_TRANSITIONS=101} [2022-11-16 11:48:34,726 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -22 predicate places. [2022-11-16 11:48:34,726 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 101 transitions, 214 flow [2022-11-16 11:48:34,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:34,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:34,727 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:34,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:48:34,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671697, now seen corresponding path program 1 times [2022-11-16 11:48:34,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:34,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854299710] [2022-11-16 11:48:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:34,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:34,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854299710] [2022-11-16 11:48:34,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854299710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:34,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:34,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:34,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694239386] [2022-11-16 11:48:34,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:34,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:34,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:34,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:34,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:34,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:34,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 101 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:34,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:34,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:34,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:36,308 INFO L130 PetriNetUnfolder]: 604/1189 cut-off events. [2022-11-16 11:48:36,309 INFO L131 PetriNetUnfolder]: For 63/287 co-relation queries the response was YES. [2022-11-16 11:48:36,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2278 conditions, 1189 events. 604/1189 cut-off events. For 63/287 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 6774 event pairs, 604 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 2237. Up to 995 conditions per place. [2022-11-16 11:48:36,319 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 24 selfloop transitions, 3 changer transitions 0/99 dead transitions. [2022-11-16 11:48:36,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 99 transitions, 264 flow [2022-11-16 11:48:36,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 401 transitions. [2022-11-16 11:48:36,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6913793103448276 [2022-11-16 11:48:36,326 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 401 transitions. [2022-11-16 11:48:36,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 401 transitions. [2022-11-16 11:48:36,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:36,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 401 transitions. [2022-11-16 11:48:36,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,333 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,333 INFO L175 Difference]: Start difference. First operand has 109 places, 101 transitions, 214 flow. Second operand 4 states and 401 transitions. [2022-11-16 11:48:36,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 99 transitions, 264 flow [2022-11-16 11:48:36,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 99 transitions, 258 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:36,338 INFO L231 Difference]: Finished difference. Result has 107 places, 99 transitions, 210 flow [2022-11-16 11:48:36,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=107, PETRI_TRANSITIONS=99} [2022-11-16 11:48:36,343 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -24 predicate places. [2022-11-16 11:48:36,343 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 99 transitions, 210 flow [2022-11-16 11:48:36,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:36,344 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:36,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:48:36,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:36,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:36,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671698, now seen corresponding path program 1 times [2022-11-16 11:48:36,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:36,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277571126] [2022-11-16 11:48:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:36,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:36,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277571126] [2022-11-16 11:48:36,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277571126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:36,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:36,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:36,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996869700] [2022-11-16 11:48:36,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:36,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:36,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:36,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:36,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:36,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:36,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 99 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:36,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:36,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:37,771 INFO L130 PetriNetUnfolder]: 423/882 cut-off events. [2022-11-16 11:48:37,772 INFO L131 PetriNetUnfolder]: For 56/200 co-relation queries the response was YES. [2022-11-16 11:48:37,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 882 events. 423/882 cut-off events. For 56/200 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 4753 event pairs, 423 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 1629. Up to 708 conditions per place. [2022-11-16 11:48:37,779 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 22 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2022-11-16 11:48:37,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 97 transitions, 256 flow [2022-11-16 11:48:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2022-11-16 11:48:37,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6879310344827586 [2022-11-16 11:48:37,787 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 399 transitions. [2022-11-16 11:48:37,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 399 transitions. [2022-11-16 11:48:37,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:37,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 399 transitions. [2022-11-16 11:48:37,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,799 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,800 INFO L175 Difference]: Start difference. First operand has 107 places, 99 transitions, 210 flow. Second operand 4 states and 399 transitions. [2022-11-16 11:48:37,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 97 transitions, 256 flow [2022-11-16 11:48:37,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 97 transitions, 250 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:37,807 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 206 flow [2022-11-16 11:48:37,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2022-11-16 11:48:37,812 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -26 predicate places. [2022-11-16 11:48:37,812 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 206 flow [2022-11-16 11:48:37,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:37,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:37,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:48:37,814 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:37,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:37,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671699, now seen corresponding path program 1 times [2022-11-16 11:48:37,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:37,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474939845] [2022-11-16 11:48:37,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:37,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:37,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:37,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:37,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474939845] [2022-11-16 11:48:37,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474939845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:37,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:37,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:37,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352573530] [2022-11-16 11:48:37,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:37,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:37,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:37,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:37,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:37,968 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:37,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:37,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:37,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:38,569 INFO L130 PetriNetUnfolder]: 282/629 cut-off events. [2022-11-16 11:48:38,570 INFO L131 PetriNetUnfolder]: For 48/132 co-relation queries the response was YES. [2022-11-16 11:48:38,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 629 events. 282/629 cut-off events. For 48/132 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 3071 event pairs, 282 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 1131. Up to 483 conditions per place. [2022-11-16 11:48:38,575 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 20 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2022-11-16 11:48:38,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 95 transitions, 248 flow [2022-11-16 11:48:38,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:38,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2022-11-16 11:48:38,579 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6844827586206896 [2022-11-16 11:48:38,579 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 397 transitions. [2022-11-16 11:48:38,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 397 transitions. [2022-11-16 11:48:38,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:38,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 397 transitions. [2022-11-16 11:48:38,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,586 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,586 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 206 flow. Second operand 4 states and 397 transitions. [2022-11-16 11:48:38,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 95 transitions, 248 flow [2022-11-16 11:48:38,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 95 transitions, 242 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:38,589 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 202 flow [2022-11-16 11:48:38,590 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=103, PETRI_TRANSITIONS=95} [2022-11-16 11:48:38,590 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -28 predicate places. [2022-11-16 11:48:38,591 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 202 flow [2022-11-16 11:48:38,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,592 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:38,592 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:38,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:48:38,592 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:38,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:38,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671702, now seen corresponding path program 1 times [2022-11-16 11:48:38,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:38,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166086111] [2022-11-16 11:48:38,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:38,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:38,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:38,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166086111] [2022-11-16 11:48:38,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166086111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:38,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:38,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:38,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983538453] [2022-11-16 11:48:38,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:38,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:38,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:38,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:38,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:38,792 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:38,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:38,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:38,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:39,182 INFO L130 PetriNetUnfolder]: 167/420 cut-off events. [2022-11-16 11:48:39,182 INFO L131 PetriNetUnfolder]: For 44/80 co-relation queries the response was YES. [2022-11-16 11:48:39,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 420 events. 167/420 cut-off events. For 44/80 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1800 event pairs, 167 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 703. Up to 298 conditions per place. [2022-11-16 11:48:39,188 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 18 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2022-11-16 11:48:39,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 93 transitions, 240 flow [2022-11-16 11:48:39,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 395 transitions. [2022-11-16 11:48:39,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6810344827586207 [2022-11-16 11:48:39,191 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 395 transitions. [2022-11-16 11:48:39,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 395 transitions. [2022-11-16 11:48:39,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:39,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 395 transitions. [2022-11-16 11:48:39,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,200 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,200 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 202 flow. Second operand 4 states and 395 transitions. [2022-11-16 11:48:39,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 93 transitions, 240 flow [2022-11-16 11:48:39,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 93 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:39,202 INFO L231 Difference]: Finished difference. Result has 101 places, 93 transitions, 198 flow [2022-11-16 11:48:39,203 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=101, PETRI_TRANSITIONS=93} [2022-11-16 11:48:39,205 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -30 predicate places. [2022-11-16 11:48:39,205 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 93 transitions, 198 flow [2022-11-16 11:48:39,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,206 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:39,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:39,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:48:39,207 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:39,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:39,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1599161368, now seen corresponding path program 1 times [2022-11-16 11:48:39,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:39,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94856186] [2022-11-16 11:48:39,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:39,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:39,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:39,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94856186] [2022-11-16 11:48:39,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94856186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:39,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:39,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:39,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130071440] [2022-11-16 11:48:39,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:39,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:39,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:39,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:39,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:39,290 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:39,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 93 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:39,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:39,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:39,626 INFO L130 PetriNetUnfolder]: 114/325 cut-off events. [2022-11-16 11:48:39,626 INFO L131 PetriNetUnfolder]: For 30/55 co-relation queries the response was YES. [2022-11-16 11:48:39,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 325 events. 114/325 cut-off events. For 30/55 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1243 event pairs, 114 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 515. Up to 209 conditions per place. [2022-11-16 11:48:39,629 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 16 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2022-11-16 11:48:39,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 91 transitions, 232 flow [2022-11-16 11:48:39,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 393 transitions. [2022-11-16 11:48:39,632 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6775862068965517 [2022-11-16 11:48:39,632 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 393 transitions. [2022-11-16 11:48:39,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 393 transitions. [2022-11-16 11:48:39,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:39,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 393 transitions. [2022-11-16 11:48:39,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,637 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,638 INFO L175 Difference]: Start difference. First operand has 101 places, 93 transitions, 198 flow. Second operand 4 states and 393 transitions. [2022-11-16 11:48:39,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 91 transitions, 232 flow [2022-11-16 11:48:39,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 91 transitions, 226 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:39,640 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 194 flow [2022-11-16 11:48:39,641 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2022-11-16 11:48:39,642 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -32 predicate places. [2022-11-16 11:48:39,642 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 194 flow [2022-11-16 11:48:39,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,643 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:39,643 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:39,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:48:39,643 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:39,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:39,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1599161371, now seen corresponding path program 1 times [2022-11-16 11:48:39,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:39,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921409161] [2022-11-16 11:48:39,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:39,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:39,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:39,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921409161] [2022-11-16 11:48:39,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921409161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:39,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:39,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:39,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247207676] [2022-11-16 11:48:39,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:39,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:39,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:39,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:39,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:39,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:39,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:39,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:39,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:40,036 INFO L130 PetriNetUnfolder]: 71/246 cut-off events. [2022-11-16 11:48:40,036 INFO L131 PetriNetUnfolder]: For 22/38 co-relation queries the response was YES. [2022-11-16 11:48:40,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 246 events. 71/246 cut-off events. For 22/38 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 795 event pairs, 71 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 365. Up to 136 conditions per place. [2022-11-16 11:48:40,038 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 14 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2022-11-16 11:48:40,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 89 transitions, 224 flow [2022-11-16 11:48:40,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:40,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2022-11-16 11:48:40,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6741379310344827 [2022-11-16 11:48:40,041 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 391 transitions. [2022-11-16 11:48:40,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 391 transitions. [2022-11-16 11:48:40,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:40,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 391 transitions. [2022-11-16 11:48:40,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,044 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,045 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 194 flow. Second operand 4 states and 391 transitions. [2022-11-16 11:48:40,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 89 transitions, 224 flow [2022-11-16 11:48:40,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 89 transitions, 218 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:40,047 INFO L231 Difference]: Finished difference. Result has 97 places, 89 transitions, 190 flow [2022-11-16 11:48:40,047 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=97, PETRI_TRANSITIONS=89} [2022-11-16 11:48:40,048 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -34 predicate places. [2022-11-16 11:48:40,048 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 89 transitions, 190 flow [2022-11-16 11:48:40,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:40,049 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:40,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:48:40,049 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:40,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:40,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1599161374, now seen corresponding path program 1 times [2022-11-16 11:48:40,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:40,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492586999] [2022-11-16 11:48:40,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:40,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:40,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:40,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492586999] [2022-11-16 11:48:40,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492586999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:40,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:40,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:40,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275596718] [2022-11-16 11:48:40,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:40,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:40,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:40,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:40,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:40,213 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:40,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 89 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:40,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:40,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:40,398 INFO L130 PetriNetUnfolder]: 38/183 cut-off events. [2022-11-16 11:48:40,398 INFO L131 PetriNetUnfolder]: For 12/21 co-relation queries the response was YES. [2022-11-16 11:48:40,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 183 events. 38/183 cut-off events. For 12/21 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 459 event pairs, 38 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 244. Up to 79 conditions per place. [2022-11-16 11:48:40,399 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 12 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2022-11-16 11:48:40,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 87 transitions, 216 flow [2022-11-16 11:48:40,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:40,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:40,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 389 transitions. [2022-11-16 11:48:40,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6706896551724137 [2022-11-16 11:48:40,402 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 389 transitions. [2022-11-16 11:48:40,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 389 transitions. [2022-11-16 11:48:40,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:40,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 389 transitions. [2022-11-16 11:48:40,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,407 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,407 INFO L175 Difference]: Start difference. First operand has 97 places, 89 transitions, 190 flow. Second operand 4 states and 389 transitions. [2022-11-16 11:48:40,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 87 transitions, 216 flow [2022-11-16 11:48:40,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 87 transitions, 210 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:40,410 INFO L231 Difference]: Finished difference. Result has 95 places, 87 transitions, 186 flow [2022-11-16 11:48:40,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=95, PETRI_TRANSITIONS=87} [2022-11-16 11:48:40,411 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -36 predicate places. [2022-11-16 11:48:40,411 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 87 transitions, 186 flow [2022-11-16 11:48:40,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:40,412 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:40,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:48:40,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-16 11:48:40,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:40,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1599161377, now seen corresponding path program 1 times [2022-11-16 11:48:40,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:40,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520484376] [2022-11-16 11:48:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:40,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:40,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:40,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:40,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520484376] [2022-11-16 11:48:40,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520484376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:40,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:40,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:40,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446517189] [2022-11-16 11:48:40,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:40,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:40,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:40,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:40,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:40,578 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-16 11:48:40,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 87 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:40,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-16 11:48:40,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:40,698 INFO L130 PetriNetUnfolder]: 15/136 cut-off events. [2022-11-16 11:48:40,698 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2022-11-16 11:48:40,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 136 events. 15/136 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 222 event pairs, 15 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 140. Up to 38 conditions per place. [2022-11-16 11:48:40,699 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2022-11-16 11:48:40,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 85 transitions, 208 flow [2022-11-16 11:48:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:48:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 387 transitions. [2022-11-16 11:48:40,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6672413793103448 [2022-11-16 11:48:40,702 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 387 transitions. [2022-11-16 11:48:40,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 387 transitions. [2022-11-16 11:48:40,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:40,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 387 transitions. [2022-11-16 11:48:40,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,707 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,708 INFO L175 Difference]: Start difference. First operand has 95 places, 87 transitions, 186 flow. Second operand 4 states and 387 transitions. [2022-11-16 11:48:40,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 85 transitions, 208 flow [2022-11-16 11:48:40,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 85 transitions, 202 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:48:40,710 INFO L231 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2022-11-16 11:48:40,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2022-11-16 11:48:40,711 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -38 predicate places. [2022-11-16 11:48:40,712 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2022-11-16 11:48:40,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2022-11-16 11:48:40,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2022-11-16 11:48:40,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2022-11-16 11:48:40,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2022-11-16 11:48:40,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2022-11-16 11:48:40,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2022-11-16 11:48:40,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2022-11-16 11:48:40,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2022-11-16 11:48:40,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2022-11-16 11:48:40,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2022-11-16 11:48:40,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2022-11-16 11:48:40,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2022-11-16 11:48:40,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2022-11-16 11:48:40,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2022-11-16 11:48:40,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2022-11-16 11:48:40,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2022-11-16 11:48:40,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2022-11-16 11:48:40,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2022-11-16 11:48:40,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2022-11-16 11:48:40,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2022-11-16 11:48:40,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2022-11-16 11:48:40,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2022-11-16 11:48:40,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2022-11-16 11:48:40,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2022-11-16 11:48:40,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2022-11-16 11:48:40,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2022-11-16 11:48:40,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2022-11-16 11:48:40,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2022-11-16 11:48:40,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2022-11-16 11:48:40,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2022-11-16 11:48:40,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2022-11-16 11:48:40,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2022-11-16 11:48:40,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2022-11-16 11:48:40,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2022-11-16 11:48:40,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2022-11-16 11:48:40,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2022-11-16 11:48:40,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2022-11-16 11:48:40,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2022-11-16 11:48:40,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2022-11-16 11:48:40,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2022-11-16 11:48:40,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2022-11-16 11:48:40,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2022-11-16 11:48:40,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2022-11-16 11:48:40,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2022-11-16 11:48:40,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2022-11-16 11:48:40,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2022-11-16 11:48:40,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2022-11-16 11:48:40,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2022-11-16 11:48:40,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2022-11-16 11:48:40,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2022-11-16 11:48:40,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2022-11-16 11:48:40,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2022-11-16 11:48:40,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2022-11-16 11:48:40,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2022-11-16 11:48:40,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2022-11-16 11:48:40,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2022-11-16 11:48:40,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2022-11-16 11:48:40,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2022-11-16 11:48:40,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2022-11-16 11:48:40,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2022-11-16 11:48:40,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2022-11-16 11:48:40,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2022-11-16 11:48:40,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2022-11-16 11:48:40,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2022-11-16 11:48:40,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2022-11-16 11:48:40,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2022-11-16 11:48:40,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2022-11-16 11:48:40,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2022-11-16 11:48:40,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2022-11-16 11:48:40,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2022-11-16 11:48:40,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2022-11-16 11:48:40,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2022-11-16 11:48:40,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2022-11-16 11:48:40,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2022-11-16 11:48:40,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2022-11-16 11:48:40,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:48:40,737 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:40,744 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:48:40,744 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:48:40,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:48:40 BasicIcfg [2022-11-16 11:48:40,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:48:40,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:48:40,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:48:40,757 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:48:40,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:22" (3/4) ... [2022-11-16 11:48:40,760 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:48:40,766 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 11:48:40,766 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 11:48:40,767 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-16 11:48:40,774 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-16 11:48:40,774 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:48:40,774 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:48:40,774 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:48:40,822 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:48:40,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:48:40,823 INFO L158 Benchmark]: Toolchain (without parser) took 22045.90ms. Allocated memory was 148.9MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 112.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 260.2MB. Max. memory is 16.1GB. [2022-11-16 11:48:40,824 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:48:40,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.11ms. Allocated memory is still 148.9MB. Free memory was 111.8MB in the beginning and 123.3MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:48:40,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.78ms. Allocated memory is still 148.9MB. Free memory was 123.3MB in the beginning and 120.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:48:40,825 INFO L158 Benchmark]: Boogie Preprocessor took 73.54ms. Allocated memory is still 148.9MB. Free memory was 120.7MB in the beginning and 118.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:48:40,826 INFO L158 Benchmark]: RCFGBuilder took 2853.95ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 118.9MB in the beginning and 108.4MB in the end (delta: 10.5MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2022-11-16 11:48:40,826 INFO L158 Benchmark]: TraceAbstraction took 18593.48ms. Allocated memory was 205.5MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 107.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 198.4MB. Max. memory is 16.1GB. [2022-11-16 11:48:40,827 INFO L158 Benchmark]: Witness Printer took 65.87ms. Allocated memory is still 1.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:48:40,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.11ms. Allocated memory is still 148.9MB. Free memory was 111.8MB in the beginning and 123.3MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.78ms. Allocated memory is still 148.9MB. Free memory was 123.3MB in the beginning and 120.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.54ms. Allocated memory is still 148.9MB. Free memory was 120.7MB in the beginning and 118.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2853.95ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 118.9MB in the beginning and 108.4MB in the end (delta: 10.5MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. * TraceAbstraction took 18593.48ms. Allocated memory was 205.5MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 107.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 198.4MB. Max. memory is 16.1GB. * Witness Printer took 65.87ms. Allocated memory is still 1.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 196 locations, 75 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 492 IncrementalHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 48 mSDtfsCounter, 492 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 696 NumberOfCodeBlocks, 696 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 684 ConstructedInterpolants, 0 QuantifiedInterpolants, 1602 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:48:40,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78b5f83-f9ff-4909-8af5-2ef534c8a3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE