./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/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_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-e04fb08 [2022-11-16 12:02:58,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:02:58,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:02:58,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:02:58,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:02:58,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:02:59,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:02:59,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:02:59,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:02:59,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:02:59,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:02:59,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:02:59,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:02:59,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:02:59,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:02:59,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:02:59,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:02:59,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:02:59,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:02:59,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:02:59,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:02:59,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:02:59,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:02:59,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:02:59,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:02:59,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:02:59,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:02:59,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:02:59,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:02:59,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:02:59,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:02:59,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:02:59,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:02:59,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:02:59,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:02:59,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:02:59,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:02:59,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:02:59,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:02:59,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:02:59,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:02:59,043 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:02:59,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:02:59,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:02:59,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:02:59,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:02:59,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:02:59,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:02:59,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:02:59,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:02:59,085 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:02:59,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:02:59,087 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:02:59,087 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:02:59,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:02:59,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:02:59,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:02:59,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:02:59,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:02:59,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:02:59,091 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:02:59,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:02:59,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:02:59,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:02:59,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:02:59,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:02:59,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:02:59,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:02:59,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:02:59,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:02:59,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:02:59,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:02:59,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:02:59,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:02:59,096 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:02:59,096 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:02:59,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:02:59,097 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_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-11-16 12:02:59,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:02:59,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:02:59,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:02:59,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:02:59,478 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:02:59,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-11-16 12:02:59,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/data/4e381159b/6f05724f38994823a39d6114cb4f81fa/FLAG710e59c45 [2022-11-16 12:03:00,298 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:03:00,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-11-16 12:03:00,325 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/data/4e381159b/6f05724f38994823a39d6114cb4f81fa/FLAG710e59c45 [2022-11-16 12:03:00,475 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/data/4e381159b/6f05724f38994823a39d6114cb4f81fa [2022-11-16 12:03:00,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:03:00,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:03:00,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:03:00,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:03:00,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:03:00,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:00" (1/1) ... [2022-11-16 12:03:00,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69bab6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:00, skipping insertion in model container [2022-11-16 12:03:00,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:00" (1/1) ... [2022-11-16 12:03:00,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:03:00,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:03:01,513 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-11-16 12:03:01,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:03:01,584 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:03:01,652 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-11-16 12:03:01,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:03:01,830 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:03:01,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01 WrapperNode [2022-11-16 12:03:01,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:03:01,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:03:01,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:03:01,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:03:01,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,903 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-11-16 12:03:01,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:03:01,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:03:01,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:03:01,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:03:01,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:03:01,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:03:01,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:03:01,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:03:01,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (1/1) ... [2022-11-16 12:03:01,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:03:02,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:03:02,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:03:02,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08fbe35e-4512-4a9d-a8e5-7a76789b8592/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:03:02,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:03:02,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:03:02,058 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:03:02,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:03:02,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:03:02,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:03:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:03:02,059 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 12:03:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 12:03:02,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:03:02,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:03:02,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:03:02,061 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:03:02,484 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:03:02,487 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:03:02,823 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:03:02,843 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:03:02,843 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:03:02,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:02 BoogieIcfgContainer [2022-11-16 12:03:02,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:03:02,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:03:02,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:03:02,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:03:02,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:03:00" (1/3) ... [2022-11-16 12:03:02,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a96bb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:02, skipping insertion in model container [2022-11-16 12:03:02,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:01" (2/3) ... [2022-11-16 12:03:02,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a96bb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:02, skipping insertion in model container [2022-11-16 12:03:02,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:02" (3/3) ... [2022-11-16 12:03:02,858 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-11-16 12:03:02,871 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:03:02,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:03:02,883 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:03:02,883 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:03:03,009 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:03:03,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 197 transitions, 410 flow [2022-11-16 12:03:03,170 INFO L130 PetriNetUnfolder]: 10/240 cut-off events. [2022-11-16 12:03:03,170 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:03:03,182 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. [2022-11-16 12:03:03,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 197 transitions, 410 flow [2022-11-16 12:03:03,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 163 transitions, 335 flow [2022-11-16 12:03:03,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:03:03,219 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;@2511e3d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:03:03,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 12:03:03,241 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-11-16 12:03:03,241 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:03:03,241 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:03,242 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] [2022-11-16 12:03:03,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:03:03,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:03,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1371300828, now seen corresponding path program 1 times [2022-11-16 12:03:03,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:03,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008820223] [2022-11-16 12:03:03,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:03,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:06,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:06,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:06,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008820223] [2022-11-16 12:03:06,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008820223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:06,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:06,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:03:06,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532913867] [2022-11-16 12:03:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:06,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:03:06,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:06,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:03:06,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:03:06,429 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 197 [2022-11-16 12:03:06,441 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) [2022-11-16 12:03:06,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:06,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 197 [2022-11-16 12:03:06,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:08,610 INFO L130 PetriNetUnfolder]: 1050/4238 cut-off events. [2022-11-16 12:03:08,611 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-16 12:03:08,629 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. [2022-11-16 12:03:08,718 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 80 selfloop transitions, 25 changer transitions 4/214 dead transitions. [2022-11-16 12:03:08,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 214 transitions, 654 flow [2022-11-16 12:03:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:03:08,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:03:08,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2513 transitions. [2022-11-16 12:03:08,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7086858432036097 [2022-11-16 12:03:08,747 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2513 transitions. [2022-11-16 12:03:08,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2513 transitions. [2022-11-16 12:03:08,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:08,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2513 transitions. [2022-11-16 12:03:08,766 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) [2022-11-16 12:03:08,781 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) [2022-11-16 12:03:08,784 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) [2022-11-16 12:03:08,786 INFO L175 Difference]: Start difference. First operand has 166 places, 163 transitions, 335 flow. Second operand 18 states and 2513 transitions. [2022-11-16 12:03:08,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 214 transitions, 654 flow [2022-11-16 12:03:08,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 214 transitions, 648 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:03:08,800 INFO L231 Difference]: Finished difference. Result has 185 places, 171 transitions, 457 flow [2022-11-16 12:03:08,803 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} [2022-11-16 12:03:08,809 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 19 predicate places. [2022-11-16 12:03:08,810 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 171 transitions, 457 flow [2022-11-16 12:03:08,812 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) [2022-11-16 12:03:08,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:08,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:08,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:03:08,814 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:03:08,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:08,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1550483823, now seen corresponding path program 1 times [2022-11-16 12:03:08,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:08,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245072732] [2022-11-16 12:03:08,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:08,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:11,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:11,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:11,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245072732] [2022-11-16 12:03:11,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245072732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:11,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:11,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 12:03:11,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581049077] [2022-11-16 12:03:11,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:11,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:03:11,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:11,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:03:11,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:03:11,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-16 12:03:11,122 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) [2022-11-16 12:03:11,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:11,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-16 12:03:11,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:14,396 INFO L130 PetriNetUnfolder]: 3176/6951 cut-off events. [2022-11-16 12:03:14,397 INFO L131 PetriNetUnfolder]: For 2854/2863 co-relation queries the response was YES. [2022-11-16 12:03:14,426 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. [2022-11-16 12:03:14,459 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 150 selfloop transitions, 45 changer transitions 2/276 dead transitions. [2022-11-16 12:03:14,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 276 transitions, 1135 flow [2022-11-16 12:03:14,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:03:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:03:14,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-11-16 12:03:14,466 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2022-11-16 12:03:14,467 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-11-16 12:03:14,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-11-16 12:03:14,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:14,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-11-16 12:03:14,474 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) [2022-11-16 12:03:14,481 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) [2022-11-16 12:03:14,483 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) [2022-11-16 12:03:14,483 INFO L175 Difference]: Start difference. First operand has 185 places, 171 transitions, 457 flow. Second operand 21 states and 2167 transitions. [2022-11-16 12:03:14,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 276 transitions, 1135 flow [2022-11-16 12:03:14,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 276 transitions, 1124 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:03:14,588 INFO L231 Difference]: Finished difference. Result has 206 places, 199 transitions, 711 flow [2022-11-16 12:03:14,589 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} [2022-11-16 12:03:14,590 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 40 predicate places. [2022-11-16 12:03:14,590 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 199 transitions, 711 flow [2022-11-16 12:03:14,591 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) [2022-11-16 12:03:14,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:14,591 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] [2022-11-16 12:03:14,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:03:14,592 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:03:14,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1996303698, now seen corresponding path program 1 times [2022-11-16 12:03:14,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:14,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927424674] [2022-11-16 12:03:14,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:16,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:16,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927424674] [2022-11-16 12:03:16,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927424674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:16,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:16,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 12:03:16,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506564553] [2022-11-16 12:03:16,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:16,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:03:16,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:16,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:03:16,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:03:16,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-16 12:03:16,585 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) [2022-11-16 12:03:16,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:16,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-16 12:03:16,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:20,918 INFO L130 PetriNetUnfolder]: 6088/13999 cut-off events. [2022-11-16 12:03:20,919 INFO L131 PetriNetUnfolder]: For 9246/11313 co-relation queries the response was YES. [2022-11-16 12:03:21,010 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. [2022-11-16 12:03:21,081 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 154 selfloop transitions, 63 changer transitions 5/313 dead transitions. [2022-11-16 12:03:21,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 313 transitions, 1530 flow [2022-11-16 12:03:21,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:03:21,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:03:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2157 transitions. [2022-11-16 12:03:21,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5213923132704859 [2022-11-16 12:03:21,089 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2157 transitions. [2022-11-16 12:03:21,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2157 transitions. [2022-11-16 12:03:21,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:21,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2157 transitions. [2022-11-16 12:03:21,100 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) [2022-11-16 12:03:21,109 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) [2022-11-16 12:03:21,112 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) [2022-11-16 12:03:21,112 INFO L175 Difference]: Start difference. First operand has 206 places, 199 transitions, 711 flow. Second operand 21 states and 2157 transitions. [2022-11-16 12:03:21,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 313 transitions, 1530 flow [2022-11-16 12:03:21,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 313 transitions, 1469 flow, removed 22 selfloop flow, removed 9 redundant places. [2022-11-16 12:03:21,211 INFO L231 Difference]: Finished difference. Result has 226 places, 238 transitions, 1073 flow [2022-11-16 12:03:21,212 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} [2022-11-16 12:03:21,213 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 60 predicate places. [2022-11-16 12:03:21,213 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 238 transitions, 1073 flow [2022-11-16 12:03:21,214 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) [2022-11-16 12:03:21,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:21,215 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] [2022-11-16 12:03:21,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:03:21,215 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:03:21,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash 927396420, now seen corresponding path program 1 times [2022-11-16 12:03:21,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:21,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649695641] [2022-11-16 12:03:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:21,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:23,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:23,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649695641] [2022-11-16 12:03:23,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649695641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:23,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:23,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-16 12:03:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68737748] [2022-11-16 12:03:23,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:23,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:03:23,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:23,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:03:23,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:03:23,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-16 12:03:23,037 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) [2022-11-16 12:03:23,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:23,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-16 12:03:23,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:30,647 INFO L130 PetriNetUnfolder]: 6738/14897 cut-off events. [2022-11-16 12:03:30,647 INFO L131 PetriNetUnfolder]: For 12838/15870 co-relation queries the response was YES. [2022-11-16 12:03:30,750 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. [2022-11-16 12:03:30,807 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 512 selfloop transitions, 87 changer transitions 4/694 dead transitions. [2022-11-16 12:03:30,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 694 transitions, 4184 flow [2022-11-16 12:03:30,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 12:03:30,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-16 12:03:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3862 transitions. [2022-11-16 12:03:30,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5765900268736937 [2022-11-16 12:03:30,980 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3862 transitions. [2022-11-16 12:03:30,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3862 transitions. [2022-11-16 12:03:30,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:30,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3862 transitions. [2022-11-16 12:03:31,004 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) [2022-11-16 12:03:31,020 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) [2022-11-16 12:03:31,024 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) [2022-11-16 12:03:31,024 INFO L175 Difference]: Start difference. First operand has 226 places, 238 transitions, 1073 flow. Second operand 34 states and 3862 transitions. [2022-11-16 12:03:31,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 694 transitions, 4184 flow [2022-11-16 12:03:31,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 694 transitions, 4115 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-11-16 12:03:31,126 INFO L231 Difference]: Finished difference. Result has 263 places, 294 transitions, 1665 flow [2022-11-16 12:03:31,127 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} [2022-11-16 12:03:31,129 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 97 predicate places. [2022-11-16 12:03:31,129 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 294 transitions, 1665 flow [2022-11-16 12:03:31,134 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) [2022-11-16 12:03:31,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:31,135 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] [2022-11-16 12:03:31,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:03:31,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:03:31,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:31,136 INFO L85 PathProgramCache]: Analyzing trace with hash 206731432, now seen corresponding path program 1 times [2022-11-16 12:03:31,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:31,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792140395] [2022-11-16 12:03:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:32,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:32,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:32,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792140395] [2022-11-16 12:03:32,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792140395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:32,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:32,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-16 12:03:32,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170093102] [2022-11-16 12:03:32,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:32,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:03:32,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:32,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:03:32,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:03:32,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-16 12:03:32,665 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) [2022-11-16 12:03:32,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:32,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-16 12:03:32,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:41,961 INFO L130 PetriNetUnfolder]: 9923/22569 cut-off events. [2022-11-16 12:03:41,961 INFO L131 PetriNetUnfolder]: For 37032/43837 co-relation queries the response was YES. [2022-11-16 12:03:42,159 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. [2022-11-16 12:03:42,249 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 557 selfloop transitions, 115 changer transitions 4/767 dead transitions. [2022-11-16 12:03:42,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 767 transitions, 5325 flow [2022-11-16 12:03:42,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 12:03:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-16 12:03:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3888 transitions. [2022-11-16 12:03:42,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5804717826216781 [2022-11-16 12:03:42,258 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3888 transitions. [2022-11-16 12:03:42,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3888 transitions. [2022-11-16 12:03:42,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:42,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3888 transitions. [2022-11-16 12:03:42,268 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) [2022-11-16 12:03:42,279 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) [2022-11-16 12:03:42,282 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) [2022-11-16 12:03:42,283 INFO L175 Difference]: Start difference. First operand has 263 places, 294 transitions, 1665 flow. Second operand 34 states and 3888 transitions. [2022-11-16 12:03:42,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 767 transitions, 5325 flow [2022-11-16 12:03:42,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 767 transitions, 5263 flow, removed 8 selfloop flow, removed 14 redundant places. [2022-11-16 12:03:42,811 INFO L231 Difference]: Finished difference. Result has 295 places, 337 transitions, 2442 flow [2022-11-16 12:03:42,812 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} [2022-11-16 12:03:42,815 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 129 predicate places. [2022-11-16 12:03:42,816 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 337 transitions, 2442 flow [2022-11-16 12:03:42,825 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) [2022-11-16 12:03:42,825 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:42,825 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] [2022-11-16 12:03:42,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:03:42,826 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:03:42,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:42,827 INFO L85 PathProgramCache]: Analyzing trace with hash 465082248, now seen corresponding path program 2 times [2022-11-16 12:03:42,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:42,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443279534] [2022-11-16 12:03:42,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:42,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:44,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:44,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443279534] [2022-11-16 12:03:44,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443279534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:44,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:44,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-16 12:03:44,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024300295] [2022-11-16 12:03:44,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:44,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 12:03:44,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:44,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 12:03:44,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:03:44,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-16 12:03:44,217 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) [2022-11-16 12:03:44,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:44,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-16 12:03:44,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:54,136 INFO L130 PetriNetUnfolder]: 10803/24438 cut-off events. [2022-11-16 12:03:54,136 INFO L131 PetriNetUnfolder]: For 79390/87793 co-relation queries the response was YES. [2022-11-16 12:03:54,383 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. [2022-11-16 12:03:54,473 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 589 selfloop transitions, 119 changer transitions 2/801 dead transitions. [2022-11-16 12:03:54,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 801 transitions, 6597 flow [2022-11-16 12:03:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 12:03:54,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-16 12:03:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3883 transitions. [2022-11-16 12:03:54,481 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5797252911316811 [2022-11-16 12:03:54,481 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3883 transitions. [2022-11-16 12:03:54,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3883 transitions. [2022-11-16 12:03:54,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:54,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3883 transitions. [2022-11-16 12:03:54,489 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) [2022-11-16 12:03:54,689 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) [2022-11-16 12:03:54,691 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) [2022-11-16 12:03:54,691 INFO L175 Difference]: Start difference. First operand has 295 places, 337 transitions, 2442 flow. Second operand 34 states and 3883 transitions. [2022-11-16 12:03:54,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 801 transitions, 6597 flow [2022-11-16 12:03:55,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 801 transitions, 6449 flow, removed 39 selfloop flow, removed 19 redundant places. [2022-11-16 12:03:55,295 INFO L231 Difference]: Finished difference. Result has 321 places, 369 transitions, 3107 flow [2022-11-16 12:03:55,296 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} [2022-11-16 12:03:55,297 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 155 predicate places. [2022-11-16 12:03:55,297 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 369 transitions, 3107 flow [2022-11-16 12:03:55,298 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) [2022-11-16 12:03:55,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:55,298 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] [2022-11-16 12:03:55,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:03:55,298 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:03:55,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash 404143428, now seen corresponding path program 3 times [2022-11-16 12:03:55,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:55,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250948501] [2022-11-16 12:03:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:55,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:56,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:56,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250948501] [2022-11-16 12:03:56,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250948501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:56,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:56,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-16 12:03:56,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478461559] [2022-11-16 12:03:56,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:56,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 12:03:56,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:56,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 12:03:56,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:03:56,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-16 12:03:56,733 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) [2022-11-16 12:03:56,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:56,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-16 12:03:56,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:06,597 INFO L130 PetriNetUnfolder]: 11146/25351 cut-off events. [2022-11-16 12:04:06,597 INFO L131 PetriNetUnfolder]: For 96032/104515 co-relation queries the response was YES. [2022-11-16 12:04:06,970 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. [2022-11-16 12:04:07,045 INFO L137 encePairwiseOnDemand]: 171/197 looper letters, 571 selfloop transitions, 135 changer transitions 2/799 dead transitions. [2022-11-16 12:04:07,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 799 transitions, 6995 flow [2022-11-16 12:04:07,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 12:04:07,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-16 12:04:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3872 transitions. [2022-11-16 12:04:07,247 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5780830098536877 [2022-11-16 12:04:07,247 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3872 transitions. [2022-11-16 12:04:07,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3872 transitions. [2022-11-16 12:04:07,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:07,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3872 transitions. [2022-11-16 12:04:07,271 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) [2022-11-16 12:04:07,280 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) [2022-11-16 12:04:07,283 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) [2022-11-16 12:04:07,283 INFO L175 Difference]: Start difference. First operand has 321 places, 369 transitions, 3107 flow. Second operand 34 states and 3872 transitions. [2022-11-16 12:04:07,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 799 transitions, 6995 flow [2022-11-16 12:04:08,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 799 transitions, 6633 flow, removed 140 selfloop flow, removed 20 redundant places. [2022-11-16 12:04:08,243 INFO L231 Difference]: Finished difference. Result has 340 places, 386 transitions, 3599 flow [2022-11-16 12:04:08,244 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} [2022-11-16 12:04:08,245 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 174 predicate places. [2022-11-16 12:04:08,245 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 386 transitions, 3599 flow [2022-11-16 12:04:08,246 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) [2022-11-16 12:04:08,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:08,246 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] [2022-11-16 12:04:08,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:04:08,246 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:04:08,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:08,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1815221092, now seen corresponding path program 4 times [2022-11-16 12:04:08,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:08,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619329637] [2022-11-16 12:04:08,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:08,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:10,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:10,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619329637] [2022-11-16 12:04:10,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619329637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:10,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:10,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-16 12:04:10,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615980927] [2022-11-16 12:04:10,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:10,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 12:04:10,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:10,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 12:04:10,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-11-16 12:04:10,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-11-16 12:04:10,327 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) [2022-11-16 12:04:10,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:10,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-11-16 12:04:10,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:04:23,020 INFO L130 PetriNetUnfolder]: 18126/37692 cut-off events. [2022-11-16 12:04:23,020 INFO L131 PetriNetUnfolder]: For 132517/142415 co-relation queries the response was YES. [2022-11-16 12:04:23,543 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. [2022-11-16 12:04:23,643 INFO L137 encePairwiseOnDemand]: 168/197 looper letters, 323 selfloop transitions, 189 changer transitions 7/595 dead transitions. [2022-11-16 12:04:23,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 595 transitions, 5969 flow [2022-11-16 12:04:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 12:04:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-16 12:04:23,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2554 transitions. [2022-11-16 12:04:23,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4986333463490824 [2022-11-16 12:04:23,648 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2554 transitions. [2022-11-16 12:04:23,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2554 transitions. [2022-11-16 12:04:23,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:04:23,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2554 transitions. [2022-11-16 12:04:23,654 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) [2022-11-16 12:04:23,661 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) [2022-11-16 12:04:23,664 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) [2022-11-16 12:04:23,664 INFO L175 Difference]: Start difference. First operand has 340 places, 386 transitions, 3599 flow. Second operand 26 states and 2554 transitions. [2022-11-16 12:04:23,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 595 transitions, 5969 flow [2022-11-16 12:04:24,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 595 transitions, 5759 flow, removed 10 selfloop flow, removed 26 redundant places. [2022-11-16 12:04:24,920 INFO L231 Difference]: Finished difference. Result has 349 places, 444 transitions, 4452 flow [2022-11-16 12:04:24,921 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} [2022-11-16 12:04:24,921 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 183 predicate places. [2022-11-16 12:04:24,921 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 444 transitions, 4452 flow [2022-11-16 12:04:24,922 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) [2022-11-16 12:04:24,922 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:04:24,923 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] [2022-11-16 12:04:24,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:04:24,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:04:24,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:24,924 INFO L85 PathProgramCache]: Analyzing trace with hash -732265470, now seen corresponding path program 2 times [2022-11-16 12:04:24,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:24,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195907399] [2022-11-16 12:04:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:24,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:27,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:27,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:27,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195907399] [2022-11-16 12:04:27,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195907399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:27,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:27,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-16 12:04:27,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335195907] [2022-11-16 12:04:27,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:27,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 12:04:27,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:27,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 12:04:27,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-11-16 12:04:27,106 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-11-16 12:04:27,108 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) [2022-11-16 12:04:27,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:04:27,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-11-16 12:04:27,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand