./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:07:24,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:07:24,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:07:24,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:07:24,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:07:24,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:07:24,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:07:24,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:07:24,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:07:24,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:07:24,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:07:24,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:07:24,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:07:24,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:07:24,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:07:24,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:07:24,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:07:24,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:07:24,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:07:24,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:07:24,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:07:24,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:07:24,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:07:24,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:07:24,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:07:24,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:07:24,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:07:24,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:07:24,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:07:24,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:07:24,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:07:24,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:07:24,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:07:24,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:07:24,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:07:24,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:07:24,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:07:24,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:07:24,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:07:24,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:07:24,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:07:24,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:07:24,269 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:07:24,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:07:24,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:07:24,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:07:24,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:07:24,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:07:24,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:07:24,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:07:24,272 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:07:24,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:07:24,274 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:07:24,274 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:07:24,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:07:24,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:07:24,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:07:24,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:07:24,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:07:24,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:07:24,275 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:07:24,276 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:07:24,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:07:24,276 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:07:24,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:07:24,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:07:24,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:07:24,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:07:24,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:07:24,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:07:24,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:07:24,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:07:24,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:07:24,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:07:24,279 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:07:24,280 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:07:24,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:07:24,280 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_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-11-18 20:07:24,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:07:24,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:07:24,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:07:24,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:07:24,738 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:07:24,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-11-18 20:07:24,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/data/60b13380f/13c5e3344e5c442db9c8734236f048f8/FLAG289359236 [2022-11-18 20:07:25,571 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:07:25,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-11-18 20:07:25,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/data/60b13380f/13c5e3344e5c442db9c8734236f048f8/FLAG289359236 [2022-11-18 20:07:25,820 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/data/60b13380f/13c5e3344e5c442db9c8734236f048f8 [2022-11-18 20:07:25,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:07:25,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:07:25,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:07:25,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:07:25,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:07:25,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:07:25" (1/1) ... [2022-11-18 20:07:25,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc92705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:25, skipping insertion in model container [2022-11-18 20:07:25,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:07:25" (1/1) ... [2022-11-18 20:07:25,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:07:25,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:07:27,066 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-11-18 20:07:27,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:07:27,130 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:07:27,196 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-11-18 20:07:27,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:07:27,357 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:07:27,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27 WrapperNode [2022-11-18 20:07:27,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:07:27,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:07:27,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:07:27,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:07:27,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,476 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-11-18 20:07:27,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:07:27,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:07:27,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:07:27,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:07:27,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:07:27,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:07:27,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:07:27,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:07:27,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (1/1) ... [2022-11-18 20:07:27,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:07:27,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:27,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:27,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8757a4ee-530a-4a64-b5cf-7cb66cb9e01f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:07:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:07:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:07:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:07:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:07:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:07:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:07:27,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:07:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 20:07:27,645 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 20:07:27,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:07:27,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:07:27,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:07:27,647 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:07:28,045 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:07:28,047 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:07:28,399 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:07:28,413 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:07:28,414 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:07:28,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:07:28 BoogieIcfgContainer [2022-11-18 20:07:28,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:07:28,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:07:28,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:07:28,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:07:28,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:07:25" (1/3) ... [2022-11-18 20:07:28,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a11521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:07:28, skipping insertion in model container [2022-11-18 20:07:28,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:27" (2/3) ... [2022-11-18 20:07:28,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a11521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:07:28, skipping insertion in model container [2022-11-18 20:07:28,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:07:28" (3/3) ... [2022-11-18 20:07:28,434 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-11-18 20:07:28,444 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:07:28,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:07:28,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:07:28,457 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:07:28,589 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:07:28,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 197 transitions, 410 flow [2022-11-18 20:07:28,854 INFO L130 PetriNetUnfolder]: 10/240 cut-off events. [2022-11-18 20:07:28,854 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:07:28,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 10/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 417 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-11-18 20:07:28,862 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 197 transitions, 410 flow [2022-11-18 20:07:28,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 163 transitions, 335 flow [2022-11-18 20:07:28,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:07:28,900 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;@562c7b05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:07:28,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:07:28,938 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-11-18 20:07:28,938 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:07:28,938 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:28,939 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:28,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:07:28,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1371300828, now seen corresponding path program 1 times [2022-11-18 20:07:28,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:28,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547607193] [2022-11-18 20:07:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:28,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:32,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547607193] [2022-11-18 20:07:32,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547607193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:32,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:32,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-18 20:07:32,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706297970] [2022-11-18 20:07:32,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:32,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 20:07:32,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:32,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:07:32,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:07:32,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 197 [2022-11-18 20:07:32,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 163 transitions, 335 flow. Second operand has 16 states, 16 states have (on average 134.6875) internal successors, (2155), 16 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:32,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:32,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 197 [2022-11-18 20:07:32,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:34,626 INFO L130 PetriNetUnfolder]: 1050/4238 cut-off events. [2022-11-18 20:07:34,627 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-18 20:07:34,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6041 conditions, 4238 events. 1050/4238 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 41324 event pairs, 649 based on Foata normal form. 162/3933 useless extension candidates. Maximal degree in co-relation 5899. Up to 1236 conditions per place. [2022-11-18 20:07:34,666 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 80 selfloop transitions, 25 changer transitions 4/214 dead transitions. [2022-11-18 20:07:34,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 214 transitions, 654 flow [2022-11-18 20:07:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:07:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 20:07:34,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2513 transitions. [2022-11-18 20:07:34,696 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7086858432036097 [2022-11-18 20:07:34,696 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2513 transitions. [2022-11-18 20:07:34,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2513 transitions. [2022-11-18 20:07:34,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:34,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2513 transitions. [2022-11-18 20:07:34,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.61111111111111) internal successors, (2513), 18 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:34,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 197.0) internal successors, (3743), 19 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:34,734 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 197.0) internal successors, (3743), 19 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:34,736 INFO L175 Difference]: Start difference. First operand has 166 places, 163 transitions, 335 flow. Second operand 18 states and 2513 transitions. [2022-11-18 20:07:34,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 214 transitions, 654 flow [2022-11-18 20:07:34,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 214 transitions, 648 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:07:34,749 INFO L231 Difference]: Finished difference. Result has 185 places, 171 transitions, 457 flow [2022-11-18 20:07:34,751 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=457, PETRI_PLACES=185, PETRI_TRANSITIONS=171} [2022-11-18 20:07:34,755 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 19 predicate places. [2022-11-18 20:07:34,756 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 171 transitions, 457 flow [2022-11-18 20:07:34,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.6875) internal successors, (2155), 16 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:34,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:34,758 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:34,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:07:34,758 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:07:34,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:34,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1550483823, now seen corresponding path program 1 times [2022-11-18 20:07:34,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:34,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940691630] [2022-11-18 20:07:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:34,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:37,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:37,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940691630] [2022-11-18 20:07:37,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940691630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:37,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:37,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 20:07:37,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625062487] [2022-11-18 20:07:37,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:37,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:07:37,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:37,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:07:37,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:07:37,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-18 20:07:37,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 171 transitions, 457 flow. Second operand has 22 states, 22 states have (on average 95.9090909090909) internal successors, (2110), 22 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:37,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:37,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-18 20:07:37,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:40,456 INFO L130 PetriNetUnfolder]: 3176/6951 cut-off events. [2022-11-18 20:07:40,456 INFO L131 PetriNetUnfolder]: For 2854/2863 co-relation queries the response was YES. [2022-11-18 20:07:40,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13963 conditions, 6951 events. 3176/6951 cut-off events. For 2854/2863 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 58664 event pairs, 1367 based on Foata normal form. 168/6672 useless extension candidates. Maximal degree in co-relation 13222. Up to 3261 conditions per place. [2022-11-18 20:07:40,515 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 150 selfloop transitions, 45 changer transitions 2/276 dead transitions. [2022-11-18 20:07:40,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 276 transitions, 1135 flow [2022-11-18 20:07:40,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:07:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:07:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-11-18 20:07:40,526 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2022-11-18 20:07:40,526 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-11-18 20:07:40,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-11-18 20:07:40,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:40,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-11-18 20:07:40,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 103.19047619047619) internal successors, (2167), 21 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:40,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:40,543 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:40,543 INFO L175 Difference]: Start difference. First operand has 185 places, 171 transitions, 457 flow. Second operand 21 states and 2167 transitions. [2022-11-18 20:07:40,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 276 transitions, 1135 flow [2022-11-18 20:07:40,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 276 transitions, 1124 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:07:40,592 INFO L231 Difference]: Finished difference. Result has 206 places, 199 transitions, 711 flow [2022-11-18 20:07:40,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=711, PETRI_PLACES=206, PETRI_TRANSITIONS=199} [2022-11-18 20:07:40,594 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 40 predicate places. [2022-11-18 20:07:40,594 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 199 transitions, 711 flow [2022-11-18 20:07:40,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.9090909090909) internal successors, (2110), 22 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:40,595 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:40,595 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:40,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:07:40,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:07:40,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:40,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1996303698, now seen corresponding path program 1 times [2022-11-18 20:07:40,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:40,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869986503] [2022-11-18 20:07:40,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:40,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:42,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:42,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869986503] [2022-11-18 20:07:42,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869986503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:42,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:42,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 20:07:42,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115925568] [2022-11-18 20:07:42,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:42,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:07:42,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:42,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:07:42,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:07:42,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-18 20:07:42,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 199 transitions, 711 flow. Second operand has 22 states, 22 states have (on average 95.95454545454545) internal successors, (2111), 22 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:42,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:42,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-18 20:07:42,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:46,828 INFO L130 PetriNetUnfolder]: 6088/13999 cut-off events. [2022-11-18 20:07:46,828 INFO L131 PetriNetUnfolder]: For 9246/11313 co-relation queries the response was YES. [2022-11-18 20:07:46,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31117 conditions, 13999 events. 6088/13999 cut-off events. For 9246/11313 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 134094 event pairs, 2445 based on Foata normal form. 57/12917 useless extension candidates. Maximal degree in co-relation 29206. Up to 8450 conditions per place. [2022-11-18 20:07:47,001 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 154 selfloop transitions, 63 changer transitions 5/313 dead transitions. [2022-11-18 20:07:47,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 313 transitions, 1530 flow [2022-11-18 20:07:47,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:07:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:07:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2157 transitions. [2022-11-18 20:07:47,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5213923132704859 [2022-11-18 20:07:47,011 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2157 transitions. [2022-11-18 20:07:47,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2157 transitions. [2022-11-18 20:07:47,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:47,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2157 transitions. [2022-11-18 20:07:47,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 102.71428571428571) internal successors, (2157), 21 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:47,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:47,035 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:47,035 INFO L175 Difference]: Start difference. First operand has 206 places, 199 transitions, 711 flow. Second operand 21 states and 2157 transitions. [2022-11-18 20:07:47,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 313 transitions, 1530 flow [2022-11-18 20:07:47,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 313 transitions, 1469 flow, removed 22 selfloop flow, removed 9 redundant places. [2022-11-18 20:07:47,184 INFO L231 Difference]: Finished difference. Result has 226 places, 238 transitions, 1073 flow [2022-11-18 20:07:47,184 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1073, PETRI_PLACES=226, PETRI_TRANSITIONS=238} [2022-11-18 20:07:47,185 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 60 predicate places. [2022-11-18 20:07:47,185 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 238 transitions, 1073 flow [2022-11-18 20:07:47,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.95454545454545) internal successors, (2111), 22 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:47,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:47,187 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:47,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:07:47,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:07:47,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:47,188 INFO L85 PathProgramCache]: Analyzing trace with hash 927396420, now seen corresponding path program 1 times [2022-11-18 20:07:47,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:47,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097271930] [2022-11-18 20:07:47,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:47,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:49,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:49,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097271930] [2022-11-18 20:07:49,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097271930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:49,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:49,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-18 20:07:49,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214335681] [2022-11-18 20:07:49,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:49,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:07:49,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:49,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:07:49,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:07:49,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-18 20:07:49,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 238 transitions, 1073 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:49,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:49,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-18 20:07:49,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:57,773 INFO L130 PetriNetUnfolder]: 6738/14897 cut-off events. [2022-11-18 20:07:57,773 INFO L131 PetriNetUnfolder]: For 12838/15870 co-relation queries the response was YES. [2022-11-18 20:07:57,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35533 conditions, 14897 events. 6738/14897 cut-off events. For 12838/15870 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 137853 event pairs, 1902 based on Foata normal form. 189/14329 useless extension candidates. Maximal degree in co-relation 33731. Up to 3515 conditions per place. [2022-11-18 20:07:57,930 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 512 selfloop transitions, 87 changer transitions 4/694 dead transitions. [2022-11-18 20:07:57,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 694 transitions, 4184 flow [2022-11-18 20:07:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 20:07:57,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-18 20:07:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3862 transitions. [2022-11-18 20:07:57,943 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5765900268736937 [2022-11-18 20:07:57,943 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3862 transitions. [2022-11-18 20:07:57,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3862 transitions. [2022-11-18 20:07:57,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:57,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3862 transitions. [2022-11-18 20:07:57,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.58823529411765) internal successors, (3862), 34 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:57,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:57,974 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:57,974 INFO L175 Difference]: Start difference. First operand has 226 places, 238 transitions, 1073 flow. Second operand 34 states and 3862 transitions. [2022-11-18 20:07:57,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 694 transitions, 4184 flow [2022-11-18 20:07:58,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 694 transitions, 4115 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-11-18 20:07:58,072 INFO L231 Difference]: Finished difference. Result has 263 places, 294 transitions, 1665 flow [2022-11-18 20:07:58,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=1665, PETRI_PLACES=263, PETRI_TRANSITIONS=294} [2022-11-18 20:07:58,074 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 97 predicate places. [2022-11-18 20:07:58,074 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 294 transitions, 1665 flow [2022-11-18 20:07:58,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:58,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:58,076 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:58,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:07:58,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:07:58,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 206731432, now seen corresponding path program 1 times [2022-11-18 20:07:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:58,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024649180] [2022-11-18 20:07:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:58,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:00,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:00,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024649180] [2022-11-18 20:08:00,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024649180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:00,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:00,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-18 20:08:00,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932992324] [2022-11-18 20:08:00,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:00,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:08:00,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:00,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:08:00,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:08:00,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-18 20:08:00,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 294 transitions, 1665 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:00,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:00,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-18 20:08:00,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:10,221 INFO L130 PetriNetUnfolder]: 9923/22569 cut-off events. [2022-11-18 20:08:10,221 INFO L131 PetriNetUnfolder]: For 37032/43837 co-relation queries the response was YES. [2022-11-18 20:08:10,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62745 conditions, 22569 events. 9923/22569 cut-off events. For 37032/43837 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 235230 event pairs, 3104 based on Foata normal form. 400/21812 useless extension candidates. Maximal degree in co-relation 62347. Up to 5226 conditions per place. [2022-11-18 20:08:10,499 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 557 selfloop transitions, 115 changer transitions 4/767 dead transitions. [2022-11-18 20:08:10,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 767 transitions, 5325 flow [2022-11-18 20:08:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 20:08:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-18 20:08:10,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3888 transitions. [2022-11-18 20:08:10,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5804717826216781 [2022-11-18 20:08:10,510 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3888 transitions. [2022-11-18 20:08:10,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3888 transitions. [2022-11-18 20:08:10,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:10,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3888 transitions. [2022-11-18 20:08:10,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.3529411764706) internal successors, (3888), 34 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:10,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:10,539 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:10,539 INFO L175 Difference]: Start difference. First operand has 263 places, 294 transitions, 1665 flow. Second operand 34 states and 3888 transitions. [2022-11-18 20:08:10,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 767 transitions, 5325 flow [2022-11-18 20:08:10,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 767 transitions, 5263 flow, removed 8 selfloop flow, removed 14 redundant places. [2022-11-18 20:08:10,900 INFO L231 Difference]: Finished difference. Result has 295 places, 337 transitions, 2442 flow [2022-11-18 20:08:10,901 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1603, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=2442, PETRI_PLACES=295, PETRI_TRANSITIONS=337} [2022-11-18 20:08:10,904 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 129 predicate places. [2022-11-18 20:08:10,905 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 337 transitions, 2442 flow [2022-11-18 20:08:10,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:10,916 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:10,916 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:10,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:08:10,916 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:08:10,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:10,918 INFO L85 PathProgramCache]: Analyzing trace with hash 465082248, now seen corresponding path program 2 times [2022-11-18 20:08:10,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:10,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406814900] [2022-11-18 20:08:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:10,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:12,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:12,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406814900] [2022-11-18 20:08:12,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406814900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:12,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:12,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-18 20:08:12,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906558723] [2022-11-18 20:08:12,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:12,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:08:12,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:12,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:08:12,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:08:12,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-18 20:08:12,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 337 transitions, 2442 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:12,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:12,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-18 20:08:12,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:23,249 INFO L130 PetriNetUnfolder]: 10803/24438 cut-off events. [2022-11-18 20:08:23,250 INFO L131 PetriNetUnfolder]: For 79390/87793 co-relation queries the response was YES. [2022-11-18 20:08:23,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77921 conditions, 24438 events. 10803/24438 cut-off events. For 79390/87793 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 255494 event pairs, 4088 based on Foata normal form. 257/23382 useless extension candidates. Maximal degree in co-relation 77458. Up to 5226 conditions per place. [2022-11-18 20:08:23,676 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 589 selfloop transitions, 119 changer transitions 2/801 dead transitions. [2022-11-18 20:08:23,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 801 transitions, 6597 flow [2022-11-18 20:08:23,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 20:08:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-18 20:08:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3883 transitions. [2022-11-18 20:08:23,699 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5797252911316811 [2022-11-18 20:08:23,699 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3883 transitions. [2022-11-18 20:08:23,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3883 transitions. [2022-11-18 20:08:23,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:23,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3883 transitions. [2022-11-18 20:08:23,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.20588235294117) internal successors, (3883), 34 states have internal predecessors, (3883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:23,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:23,730 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:23,731 INFO L175 Difference]: Start difference. First operand has 295 places, 337 transitions, 2442 flow. Second operand 34 states and 3883 transitions. [2022-11-18 20:08:23,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 801 transitions, 6597 flow [2022-11-18 20:08:24,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 801 transitions, 6449 flow, removed 39 selfloop flow, removed 19 redundant places. [2022-11-18 20:08:24,439 INFO L231 Difference]: Finished difference. Result has 321 places, 369 transitions, 3107 flow [2022-11-18 20:08:24,440 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2340, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3107, PETRI_PLACES=321, PETRI_TRANSITIONS=369} [2022-11-18 20:08:24,441 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 155 predicate places. [2022-11-18 20:08:24,441 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 369 transitions, 3107 flow [2022-11-18 20:08:24,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:24,442 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:24,442 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:24,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:08:24,443 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:08:24,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:24,444 INFO L85 PathProgramCache]: Analyzing trace with hash 404143428, now seen corresponding path program 3 times [2022-11-18 20:08:24,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:24,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067717266] [2022-11-18 20:08:24,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:24,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:25,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:25,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:25,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067717266] [2022-11-18 20:08:25,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067717266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:25,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:25,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-18 20:08:25,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313654126] [2022-11-18 20:08:25,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:25,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:08:25,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:25,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:08:25,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:08:25,925 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-18 20:08:25,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 369 transitions, 3107 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:25,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:25,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-18 20:08:25,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:36,688 INFO L130 PetriNetUnfolder]: 11146/25351 cut-off events. [2022-11-18 20:08:36,688 INFO L131 PetriNetUnfolder]: For 96032/104515 co-relation queries the response was YES. [2022-11-18 20:08:37,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84209 conditions, 25351 events. 11146/25351 cut-off events. For 96032/104515 co-relation queries the response was YES. Maximal size of possible extension queue 856. Compared 268293 event pairs, 3967 based on Foata normal form. 282/24292 useless extension candidates. Maximal degree in co-relation 83907. Up to 5226 conditions per place. [2022-11-18 20:08:37,101 INFO L137 encePairwiseOnDemand]: 171/197 looper letters, 571 selfloop transitions, 135 changer transitions 2/799 dead transitions. [2022-11-18 20:08:37,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 799 transitions, 6995 flow [2022-11-18 20:08:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 20:08:37,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-18 20:08:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3872 transitions. [2022-11-18 20:08:37,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5780830098536877 [2022-11-18 20:08:37,110 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3872 transitions. [2022-11-18 20:08:37,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3872 transitions. [2022-11-18 20:08:37,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:37,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3872 transitions. [2022-11-18 20:08:37,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.88235294117646) internal successors, (3872), 34 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:37,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:37,132 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:37,132 INFO L175 Difference]: Start difference. First operand has 321 places, 369 transitions, 3107 flow. Second operand 34 states and 3872 transitions. [2022-11-18 20:08:37,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 799 transitions, 6995 flow [2022-11-18 20:08:37,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 799 transitions, 6633 flow, removed 140 selfloop flow, removed 20 redundant places. [2022-11-18 20:08:37,781 INFO L231 Difference]: Finished difference. Result has 340 places, 386 transitions, 3599 flow [2022-11-18 20:08:37,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2957, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3599, PETRI_PLACES=340, PETRI_TRANSITIONS=386} [2022-11-18 20:08:37,783 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 174 predicate places. [2022-11-18 20:08:37,783 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 386 transitions, 3599 flow [2022-11-18 20:08:37,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:37,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:37,784 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:37,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:08:37,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:08:37,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:37,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1815221092, now seen corresponding path program 4 times [2022-11-18 20:08:37,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:37,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100672569] [2022-11-18 20:08:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:37,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:40,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:40,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100672569] [2022-11-18 20:08:40,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100672569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:40,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:40,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-18 20:08:40,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283704349] [2022-11-18 20:08:40,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:40,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 20:08:40,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:40,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 20:08:40,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-11-18 20:08:40,132 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-11-18 20:08:40,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 386 transitions, 3599 flow. Second operand has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:40,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:40,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-11-18 20:08:40,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:54,369 INFO L130 PetriNetUnfolder]: 18126/37692 cut-off events. [2022-11-18 20:08:54,369 INFO L131 PetriNetUnfolder]: For 132517/142415 co-relation queries the response was YES. [2022-11-18 20:08:54,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122628 conditions, 37692 events. 18126/37692 cut-off events. For 132517/142415 co-relation queries the response was YES. Maximal size of possible extension queue 1128. Compared 384770 event pairs, 6828 based on Foata normal form. 466/36381 useless extension candidates. Maximal degree in co-relation 122305. Up to 23990 conditions per place. [2022-11-18 20:08:55,021 INFO L137 encePairwiseOnDemand]: 168/197 looper letters, 323 selfloop transitions, 189 changer transitions 7/595 dead transitions. [2022-11-18 20:08:55,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 595 transitions, 5969 flow [2022-11-18 20:08:55,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:08:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:08:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2554 transitions. [2022-11-18 20:08:55,027 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4986333463490824 [2022-11-18 20:08:55,027 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2554 transitions. [2022-11-18 20:08:55,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2554 transitions. [2022-11-18 20:08:55,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:55,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2554 transitions. [2022-11-18 20:08:55,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 98.23076923076923) internal successors, (2554), 26 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:55,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 197.0) internal successors, (5319), 27 states have internal predecessors, (5319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:55,043 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 197.0) internal successors, (5319), 27 states have internal predecessors, (5319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:55,043 INFO L175 Difference]: Start difference. First operand has 340 places, 386 transitions, 3599 flow. Second operand 26 states and 2554 transitions. [2022-11-18 20:08:55,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 595 transitions, 5969 flow [2022-11-18 20:08:55,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 595 transitions, 5759 flow, removed 10 selfloop flow, removed 26 redundant places. [2022-11-18 20:08:55,868 INFO L231 Difference]: Finished difference. Result has 349 places, 444 transitions, 4452 flow [2022-11-18 20:08:55,868 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=3408, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4452, PETRI_PLACES=349, PETRI_TRANSITIONS=444} [2022-11-18 20:08:55,869 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 183 predicate places. [2022-11-18 20:08:55,869 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 444 transitions, 4452 flow [2022-11-18 20:08:55,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:55,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:55,870 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:55,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:08:55,871 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:08:55,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:55,871 INFO L85 PathProgramCache]: Analyzing trace with hash -732265470, now seen corresponding path program 2 times [2022-11-18 20:08:55,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:55,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493384401] [2022-11-18 20:08:55,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:55,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:58,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:58,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493384401] [2022-11-18 20:08:58,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493384401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:58,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:58,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-18 20:08:58,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812519657] [2022-11-18 20:08:58,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:58,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 20:08:58,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:58,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 20:08:58,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-11-18 20:08:58,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-11-18 20:08:58,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 444 transitions, 4452 flow. Second operand has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:08:58,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:58,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-11-18 20:08:58,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand