./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:26,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:26,913 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 12:00:26,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:26,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:26,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:26,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:26,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:26,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:26,947 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:26,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:26,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:26,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:26,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:26,959 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:26,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:26,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:26,961 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:26,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:26,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:26,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:26,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:26,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:26,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:26,964 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:00:26,964 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:26,965 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:26,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:26,966 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:26,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:26,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:26,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:26,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:26,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:26,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:26,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:26,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:26,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:26,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:26,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:26,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:26,971 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:26,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:26,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:26,973 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2023-11-26 12:00:27,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:27,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:27,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:27,321 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:27,321 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:27,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2023-11-26 12:00:30,530 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:30,954 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:30,954 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2023-11-26 12:00:31,008 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/data/a12ac3434/328a2c256249494799d5c6ae16d1b538/FLAG8e9f0a1cc [2023-11-26 12:00:31,027 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/data/a12ac3434/328a2c256249494799d5c6ae16d1b538 [2023-11-26 12:00:31,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:31,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:31,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:31,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:31,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:31,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:31" (1/1) ... [2023-11-26 12:00:31,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f168e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:31, skipping insertion in model container [2023-11-26 12:00:31,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:31" (1/1) ... [2023-11-26 12:00:31,165 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:31,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:31,898 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:32,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:32,087 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:32,087 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:32,095 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:32,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32 WrapperNode [2023-11-26 12:00:32,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:32,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:32,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:32,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:32,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,188 INFO L138 Inliner]: procedures = 248, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-26 12:00:32,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:32,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:32,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:32,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:32,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,222 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,247 INFO L175 MemorySlicer]: Split 25 memory accesses to 5 slices as follows [2, 2, 3, 15, 3]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 1, 0, 1]. The 12 writes are split as follows [0, 2, 1, 8, 1]. [2023-11-26 12:00:32,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:32,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:32,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:32,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:32,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (1/1) ... [2023-11-26 12:00:32,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:32,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:32,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:32,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4c2e446-ffbe-4ed3-8407-06ef3ee5cd9a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:32,385 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-26 12:00:32,385 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-26 12:00:32,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 12:00:32,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 12:00:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 12:00:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:00:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:00:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:00:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:00:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 12:00:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:00:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:00:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:00:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:00:32,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 12:00:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 12:00:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 12:00:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 12:00:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 12:00:32,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 12:00:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 12:00:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:00:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:00:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:00:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 12:00:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:32,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:32,391 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:00:32,710 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:32,712 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:32,993 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:33,284 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:33,284 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:00:33,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:33 BoogieIcfgContainer [2023-11-26 12:00:33,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:33,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:33,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:33,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:33,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:31" (1/3) ... [2023-11-26 12:00:33,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b516693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:33, skipping insertion in model container [2023-11-26 12:00:33,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:32" (2/3) ... [2023-11-26 12:00:33,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b516693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:33, skipping insertion in model container [2023-11-26 12:00:33,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:33" (3/3) ... [2023-11-26 12:00:33,293 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-11-26 12:00:33,302 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:00:33,314 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:33,314 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:00:33,314 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:00:33,367 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 12:00:33,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 45 transitions, 104 flow [2023-11-26 12:00:33,449 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2023-11-26 12:00:33,449 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 12:00:33,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 53 events. 2/53 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 126 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 29. Up to 3 conditions per place. [2023-11-26 12:00:33,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 45 transitions, 104 flow [2023-11-26 12:00:33,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 39 transitions, 87 flow [2023-11-26 12:00:33,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:33,489 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=LoopHeads, 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;@56355b0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:33,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 12:00:33,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:00:33,507 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-26 12:00:33,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:00:33,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:33,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:33,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:33,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:33,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1883669891, now seen corresponding path program 1 times [2023-11-26 12:00:33,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:33,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445928846] [2023-11-26 12:00:33,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:33,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:34,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:34,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445928846] [2023-11-26 12:00:34,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445928846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:34,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:34,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:34,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952370590] [2023-11-26 12:00:34,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:34,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:34,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:34,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:34,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:34,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:34,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 87 flow. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:34,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:34,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:34,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:35,902 INFO L124 PetriNetUnfolderBase]: 2221/3702 cut-off events. [2023-11-26 12:00:35,903 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-26 12:00:35,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7352 conditions, 3702 events. 2221/3702 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 21064 event pairs, 1170 based on Foata normal form. 0/3238 useless extension candidates. Maximal degree in co-relation 7260. Up to 2402 conditions per place. [2023-11-26 12:00:35,943 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 85 selfloop transitions, 24 changer transitions 3/116 dead transitions. [2023-11-26 12:00:35,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 116 transitions, 480 flow [2023-11-26 12:00:35,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:00:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 12:00:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2023-11-26 12:00:35,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41333333333333333 [2023-11-26 12:00:35,959 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 186 transitions. [2023-11-26 12:00:35,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 186 transitions. [2023-11-26 12:00:35,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:35,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 186 transitions. [2023-11-26 12:00:35,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:35,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:35,973 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:35,975 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 87 flow. Second operand 10 states and 186 transitions. [2023-11-26 12:00:35,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 116 transitions, 480 flow [2023-11-26 12:00:35,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 116 transitions, 469 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 12:00:35,986 INFO L231 Difference]: Finished difference. Result has 57 places, 64 transitions, 235 flow [2023-11-26 12:00:35,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=235, PETRI_PLACES=57, PETRI_TRANSITIONS=64} [2023-11-26 12:00:35,993 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 11 predicate places. [2023-11-26 12:00:35,993 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 64 transitions, 235 flow [2023-11-26 12:00:35,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:35,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:35,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:35,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:35,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:35,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:35,995 INFO L85 PathProgramCache]: Analyzing trace with hash -407743703, now seen corresponding path program 1 times [2023-11-26 12:00:35,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:35,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825669603] [2023-11-26 12:00:35,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:35,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:36,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:36,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825669603] [2023-11-26 12:00:36,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825669603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:36,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:36,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056732156] [2023-11-26 12:00:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:36,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:36,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:36,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:36,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:36,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 64 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:36,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:36,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:36,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:37,611 INFO L124 PetriNetUnfolderBase]: 2697/4570 cut-off events. [2023-11-26 12:00:37,611 INFO L125 PetriNetUnfolderBase]: For 1586/1588 co-relation queries the response was YES. [2023-11-26 12:00:37,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10903 conditions, 4570 events. 2697/4570 cut-off events. For 1586/1588 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 28016 event pairs, 1670 based on Foata normal form. 2/4180 useless extension candidates. Maximal degree in co-relation 9307. Up to 3258 conditions per place. [2023-11-26 12:00:37,651 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 90 selfloop transitions, 33 changer transitions 5/132 dead transitions. [2023-11-26 12:00:37,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 132 transitions, 713 flow [2023-11-26 12:00:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:00:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 12:00:37,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 183 transitions. [2023-11-26 12:00:37,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4066666666666667 [2023-11-26 12:00:37,655 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 183 transitions. [2023-11-26 12:00:37,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 183 transitions. [2023-11-26 12:00:37,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:37,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 183 transitions. [2023-11-26 12:00:37,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.3) internal successors, (183), 10 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:37,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:37,659 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:37,659 INFO L175 Difference]: Start difference. First operand has 57 places, 64 transitions, 235 flow. Second operand 10 states and 183 transitions. [2023-11-26 12:00:37,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 132 transitions, 713 flow [2023-11-26 12:00:37,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 132 transitions, 711 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:00:37,673 INFO L231 Difference]: Finished difference. Result has 69 places, 84 transitions, 426 flow [2023-11-26 12:00:37,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=426, PETRI_PLACES=69, PETRI_TRANSITIONS=84} [2023-11-26 12:00:37,675 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2023-11-26 12:00:37,675 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 84 transitions, 426 flow [2023-11-26 12:00:37,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:37,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:37,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:37,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:00:37,676 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:37,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:37,677 INFO L85 PathProgramCache]: Analyzing trace with hash -692664888, now seen corresponding path program 1 times [2023-11-26 12:00:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:37,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736077635] [2023-11-26 12:00:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:37,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:38,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:38,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:38,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736077635] [2023-11-26 12:00:38,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736077635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:38,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:38,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:38,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518609586] [2023-11-26 12:00:38,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:38,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:38,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:38,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:38,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:38,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 84 transitions, 426 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:38,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:38,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:38,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:41,213 INFO L124 PetriNetUnfolderBase]: 4137/6994 cut-off events. [2023-11-26 12:00:41,213 INFO L125 PetriNetUnfolderBase]: For 5332/5348 co-relation queries the response was YES. [2023-11-26 12:00:41,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19104 conditions, 6994 events. 4137/6994 cut-off events. For 5332/5348 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 46352 event pairs, 2277 based on Foata normal form. 120/6770 useless extension candidates. Maximal degree in co-relation 14821. Up to 4191 conditions per place. [2023-11-26 12:00:41,290 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 160 selfloop transitions, 81 changer transitions 5/250 dead transitions. [2023-11-26 12:00:41,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 250 transitions, 1702 flow [2023-11-26 12:00:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 12:00:41,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-26 12:00:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 289 transitions. [2023-11-26 12:00:41,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2023-11-26 12:00:41,296 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 289 transitions. [2023-11-26 12:00:41,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 289 transitions. [2023-11-26 12:00:41,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:41,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 289 transitions. [2023-11-26 12:00:41,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 17.0) internal successors, (289), 17 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:41,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 45.0) internal successors, (810), 18 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:41,305 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 45.0) internal successors, (810), 18 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:41,305 INFO L175 Difference]: Start difference. First operand has 69 places, 84 transitions, 426 flow. Second operand 17 states and 289 transitions. [2023-11-26 12:00:41,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 250 transitions, 1702 flow [2023-11-26 12:00:41,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 250 transitions, 1702 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:00:41,357 INFO L231 Difference]: Finished difference. Result has 97 places, 158 transitions, 1225 flow [2023-11-26 12:00:41,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1225, PETRI_PLACES=97, PETRI_TRANSITIONS=158} [2023-11-26 12:00:41,360 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 51 predicate places. [2023-11-26 12:00:41,360 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 158 transitions, 1225 flow [2023-11-26 12:00:41,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:41,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:41,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:41,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:41,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:41,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:41,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1479393841, now seen corresponding path program 1 times [2023-11-26 12:00:41,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:41,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542632490] [2023-11-26 12:00:41,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:41,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:41,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:41,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542632490] [2023-11-26 12:00:41,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542632490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:41,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:41,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:41,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712874788] [2023-11-26 12:00:41,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:41,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:41,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:41,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:41,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:41,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 45 [2023-11-26 12:00:41,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 158 transitions, 1225 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:41,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:41,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 45 [2023-11-26 12:00:41,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:42,709 INFO L124 PetriNetUnfolderBase]: 2755/4677 cut-off events. [2023-11-26 12:00:42,709 INFO L125 PetriNetUnfolderBase]: For 9206/9211 co-relation queries the response was YES. [2023-11-26 12:00:42,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15647 conditions, 4677 events. 2755/4677 cut-off events. For 9206/9211 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 28657 event pairs, 1124 based on Foata normal form. 1/4406 useless extension candidates. Maximal degree in co-relation 14817. Up to 3751 conditions per place. [2023-11-26 12:00:42,778 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 183 selfloop transitions, 15 changer transitions 0/201 dead transitions. [2023-11-26 12:00:42,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 201 transitions, 1881 flow [2023-11-26 12:00:42,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:42,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 12:00:42,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2023-11-26 12:00:42,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5222222222222223 [2023-11-26 12:00:42,781 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 94 transitions. [2023-11-26 12:00:42,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 94 transitions. [2023-11-26 12:00:42,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:42,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 94 transitions. [2023-11-26 12:00:42,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:42,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:42,783 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:42,783 INFO L175 Difference]: Start difference. First operand has 97 places, 158 transitions, 1225 flow. Second operand 4 states and 94 transitions. [2023-11-26 12:00:42,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 201 transitions, 1881 flow [2023-11-26 12:00:42,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 201 transitions, 1829 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-11-26 12:00:42,840 INFO L231 Difference]: Finished difference. Result has 94 places, 131 transitions, 983 flow [2023-11-26 12:00:42,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=983, PETRI_PLACES=94, PETRI_TRANSITIONS=131} [2023-11-26 12:00:42,842 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 48 predicate places. [2023-11-26 12:00:42,842 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 131 transitions, 983 flow [2023-11-26 12:00:42,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:42,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:42,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:42,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:00:42,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:42,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,845 INFO L85 PathProgramCache]: Analyzing trace with hash 2106895594, now seen corresponding path program 2 times [2023-11-26 12:00:42,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568933678] [2023-11-26 12:00:42,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:43,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:43,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568933678] [2023-11-26 12:00:43,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568933678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:43,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:43,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:43,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267192174] [2023-11-26 12:00:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:43,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:43,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:43,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:43,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:43,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 131 transitions, 983 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:43,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:43,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:43,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:46,326 INFO L124 PetriNetUnfolderBase]: 3493/5937 cut-off events. [2023-11-26 12:00:46,327 INFO L125 PetriNetUnfolderBase]: For 12280/12295 co-relation queries the response was YES. [2023-11-26 12:00:46,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19727 conditions, 5937 events. 3493/5937 cut-off events. For 12280/12295 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 36933 event pairs, 1711 based on Foata normal form. 103/5724 useless extension candidates. Maximal degree in co-relation 18848. Up to 3031 conditions per place. [2023-11-26 12:00:46,390 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 160 selfloop transitions, 107 changer transitions 5/275 dead transitions. [2023-11-26 12:00:46,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 275 transitions, 2393 flow [2023-11-26 12:00:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 12:00:46,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-26 12:00:46,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 326 transitions. [2023-11-26 12:00:46,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.344973544973545 [2023-11-26 12:00:46,393 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 326 transitions. [2023-11-26 12:00:46,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 326 transitions. [2023-11-26 12:00:46,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:46,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 326 transitions. [2023-11-26 12:00:46,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 15.523809523809524) internal successors, (326), 21 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:46,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 45.0) internal successors, (990), 22 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:46,398 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 45.0) internal successors, (990), 22 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:46,398 INFO L175 Difference]: Start difference. First operand has 94 places, 131 transitions, 983 flow. Second operand 21 states and 326 transitions. [2023-11-26 12:00:46,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 275 transitions, 2393 flow [2023-11-26 12:00:46,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 275 transitions, 2350 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:00:46,457 INFO L231 Difference]: Finished difference. Result has 123 places, 188 transitions, 1883 flow [2023-11-26 12:00:46,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=967, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1883, PETRI_PLACES=123, PETRI_TRANSITIONS=188} [2023-11-26 12:00:46,458 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 77 predicate places. [2023-11-26 12:00:46,459 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 188 transitions, 1883 flow [2023-11-26 12:00:46,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:46,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:46,459 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:46,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:00:46,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:46,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1838765286, now seen corresponding path program 1 times [2023-11-26 12:00:46,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:46,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676951035] [2023-11-26 12:00:46,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:46,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:47,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:47,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:47,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676951035] [2023-11-26 12:00:47,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676951035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:47,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:47,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:47,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212885942] [2023-11-26 12:00:47,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:47,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:47,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:47,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:47,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:47,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:47,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 188 transitions, 1883 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:47,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:47,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:47,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:49,153 INFO L124 PetriNetUnfolderBase]: 3691/6420 cut-off events. [2023-11-26 12:00:49,154 INFO L125 PetriNetUnfolderBase]: For 22978/22993 co-relation queries the response was YES. [2023-11-26 12:00:49,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24578 conditions, 6420 events. 3691/6420 cut-off events. For 22978/22993 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 42443 event pairs, 2068 based on Foata normal form. 117/6177 useless extension candidates. Maximal degree in co-relation 23972. Up to 4592 conditions per place. [2023-11-26 12:00:49,282 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 165 selfloop transitions, 68 changer transitions 14/250 dead transitions. [2023-11-26 12:00:49,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 250 transitions, 2696 flow [2023-11-26 12:00:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:00:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-26 12:00:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 208 transitions. [2023-11-26 12:00:49,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3851851851851852 [2023-11-26 12:00:49,286 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 208 transitions. [2023-11-26 12:00:49,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 208 transitions. [2023-11-26 12:00:49,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:49,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 208 transitions. [2023-11-26 12:00:49,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 17.333333333333332) internal successors, (208), 12 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:49,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:49,290 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:49,290 INFO L175 Difference]: Start difference. First operand has 123 places, 188 transitions, 1883 flow. Second operand 12 states and 208 transitions. [2023-11-26 12:00:49,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 250 transitions, 2696 flow [2023-11-26 12:00:49,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 250 transitions, 2533 flow, removed 56 selfloop flow, removed 7 redundant places. [2023-11-26 12:00:49,463 INFO L231 Difference]: Finished difference. Result has 130 places, 191 transitions, 1919 flow [2023-11-26 12:00:49,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1722, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1919, PETRI_PLACES=130, PETRI_TRANSITIONS=191} [2023-11-26 12:00:49,465 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 84 predicate places. [2023-11-26 12:00:49,465 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 191 transitions, 1919 flow [2023-11-26 12:00:49,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:49,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:49,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:49,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:00:49,467 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:49,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:49,467 INFO L85 PathProgramCache]: Analyzing trace with hash -837055182, now seen corresponding path program 1 times [2023-11-26 12:00:49,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:49,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998292459] [2023-11-26 12:00:49,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:49,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:50,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:50,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998292459] [2023-11-26 12:00:50,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998292459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:50,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:50,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:00:50,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420920727] [2023-11-26 12:00:50,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:50,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:50,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:50,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:50,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:50,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:50,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 191 transitions, 1919 flow. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:50,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:50,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:50,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:52,079 INFO L124 PetriNetUnfolderBase]: 3934/6736 cut-off events. [2023-11-26 12:00:52,079 INFO L125 PetriNetUnfolderBase]: For 24440/24455 co-relation queries the response was YES. [2023-11-26 12:00:52,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26410 conditions, 6736 events. 3934/6736 cut-off events. For 24440/24455 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 43932 event pairs, 2001 based on Foata normal form. 53/6411 useless extension candidates. Maximal degree in co-relation 25898. Up to 4518 conditions per place. [2023-11-26 12:00:52,158 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 170 selfloop transitions, 113 changer transitions 4/290 dead transitions. [2023-11-26 12:00:52,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 290 transitions, 3204 flow [2023-11-26 12:00:52,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:00:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-26 12:00:52,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2023-11-26 12:00:52,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37407407407407406 [2023-11-26 12:00:52,163 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 202 transitions. [2023-11-26 12:00:52,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 202 transitions. [2023-11-26 12:00:52,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:52,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 202 transitions. [2023-11-26 12:00:52,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.833333333333332) internal successors, (202), 12 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:52,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:52,167 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:52,167 INFO L175 Difference]: Start difference. First operand has 130 places, 191 transitions, 1919 flow. Second operand 12 states and 202 transitions. [2023-11-26 12:00:52,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 290 transitions, 3204 flow [2023-11-26 12:00:52,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 290 transitions, 3099 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-26 12:00:52,317 INFO L231 Difference]: Finished difference. Result has 140 places, 234 transitions, 2667 flow [2023-11-26 12:00:52,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1826, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2667, PETRI_PLACES=140, PETRI_TRANSITIONS=234} [2023-11-26 12:00:52,320 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 94 predicate places. [2023-11-26 12:00:52,320 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 234 transitions, 2667 flow [2023-11-26 12:00:52,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:52,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:52,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:52,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:00:52,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:52,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:52,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1205075178, now seen corresponding path program 3 times [2023-11-26 12:00:52,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:52,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666972154] [2023-11-26 12:00:52,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:52,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:52,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:52,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666972154] [2023-11-26 12:00:52,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666972154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:52,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:52,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:52,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324172620] [2023-11-26 12:00:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:52,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:52,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:52,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:52,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 234 transitions, 2667 flow. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:52,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:52,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:52,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:54,990 INFO L124 PetriNetUnfolderBase]: 4300/7594 cut-off events. [2023-11-26 12:00:54,990 INFO L125 PetriNetUnfolderBase]: For 32570/32580 co-relation queries the response was YES. [2023-11-26 12:00:55,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32015 conditions, 7594 events. 4300/7594 cut-off events. For 32570/32580 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 53652 event pairs, 1099 based on Foata normal form. 62/7222 useless extension candidates. Maximal degree in co-relation 31388. Up to 2996 conditions per place. [2023-11-26 12:00:55,100 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 367 selfloop transitions, 75 changer transitions 5/450 dead transitions. [2023-11-26 12:00:55,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 450 transitions, 5811 flow [2023-11-26 12:00:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:00:55,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-26 12:00:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 225 transitions. [2023-11-26 12:00:55,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2023-11-26 12:00:55,103 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 225 transitions. [2023-11-26 12:00:55,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 225 transitions. [2023-11-26 12:00:55,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:55,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 225 transitions. [2023-11-26 12:00:55,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 18.75) internal successors, (225), 12 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:55,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:55,107 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:55,107 INFO L175 Difference]: Start difference. First operand has 140 places, 234 transitions, 2667 flow. Second operand 12 states and 225 transitions. [2023-11-26 12:00:55,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 450 transitions, 5811 flow [2023-11-26 12:00:55,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 450 transitions, 5658 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-26 12:00:55,385 INFO L231 Difference]: Finished difference. Result has 149 places, 262 transitions, 3050 flow [2023-11-26 12:00:55,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2572, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3050, PETRI_PLACES=149, PETRI_TRANSITIONS=262} [2023-11-26 12:00:55,386 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 103 predicate places. [2023-11-26 12:00:55,387 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 262 transitions, 3050 flow [2023-11-26 12:00:55,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:55,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:55,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:55,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:00:55,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:55,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:55,389 INFO L85 PathProgramCache]: Analyzing trace with hash 675826032, now seen corresponding path program 2 times [2023-11-26 12:00:55,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:55,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985367337] [2023-11-26 12:00:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:55,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:56,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:56,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985367337] [2023-11-26 12:00:56,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985367337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:56,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:56,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:56,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361210249] [2023-11-26 12:00:56,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:56,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:56,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:56,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:56,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:56,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:56,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 262 transitions, 3050 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:56,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:56,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:56,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:58,647 INFO L124 PetriNetUnfolderBase]: 4474/7915 cut-off events. [2023-11-26 12:00:58,647 INFO L125 PetriNetUnfolderBase]: For 39716/39718 co-relation queries the response was YES. [2023-11-26 12:00:58,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36510 conditions, 7915 events. 4474/7915 cut-off events. For 39716/39718 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 55655 event pairs, 2360 based on Foata normal form. 130/7597 useless extension candidates. Maximal degree in co-relation 36040. Up to 4961 conditions per place. [2023-11-26 12:00:58,728 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 220 selfloop transitions, 136 changer transitions 21/380 dead transitions. [2023-11-26 12:00:58,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 380 transitions, 4661 flow [2023-11-26 12:00:58,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-26 12:00:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-26 12:00:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 300 transitions. [2023-11-26 12:00:58,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3508771929824561 [2023-11-26 12:00:58,732 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 300 transitions. [2023-11-26 12:00:58,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 300 transitions. [2023-11-26 12:00:58,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:58,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 300 transitions. [2023-11-26 12:00:58,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 15.789473684210526) internal successors, (300), 19 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:58,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:58,736 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:58,736 INFO L175 Difference]: Start difference. First operand has 149 places, 262 transitions, 3050 flow. Second operand 19 states and 300 transitions. [2023-11-26 12:00:58,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 380 transitions, 4661 flow [2023-11-26 12:00:59,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 380 transitions, 4612 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-11-26 12:00:59,020 INFO L231 Difference]: Finished difference. Result has 169 places, 275 transitions, 3480 flow [2023-11-26 12:00:59,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3011, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3480, PETRI_PLACES=169, PETRI_TRANSITIONS=275} [2023-11-26 12:00:59,022 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 123 predicate places. [2023-11-26 12:00:59,023 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 275 transitions, 3480 flow [2023-11-26 12:00:59,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:59,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:59,023 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:59,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:00:59,024 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:59,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:59,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1339151218, now seen corresponding path program 1 times [2023-11-26 12:00:59,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:59,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578058508] [2023-11-26 12:00:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:59,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:59,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:59,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578058508] [2023-11-26 12:00:59,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578058508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:59,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:59,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:00:59,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656340614] [2023-11-26 12:00:59,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:59,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:59,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:59,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:59,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:59,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:00:59,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 275 transitions, 3480 flow. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:59,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:59,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:00:59,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:01,938 INFO L124 PetriNetUnfolderBase]: 4728/8298 cut-off events. [2023-11-26 12:01:01,938 INFO L125 PetriNetUnfolderBase]: For 46827/46833 co-relation queries the response was YES. [2023-11-26 12:01:02,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40369 conditions, 8298 events. 4728/8298 cut-off events. For 46827/46833 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 58137 event pairs, 2576 based on Foata normal form. 48/7880 useless extension candidates. Maximal degree in co-relation 39929. Up to 5670 conditions per place. [2023-11-26 12:01:02,054 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 268 selfloop transitions, 112 changer transitions 13/396 dead transitions. [2023-11-26 12:01:02,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 396 transitions, 5390 flow [2023-11-26 12:01:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 12:01:02,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-26 12:01:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 216 transitions. [2023-11-26 12:01:02,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36923076923076925 [2023-11-26 12:01:02,058 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 216 transitions. [2023-11-26 12:01:02,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 216 transitions. [2023-11-26 12:01:02,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:02,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 216 transitions. [2023-11-26 12:01:02,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.615384615384617) internal successors, (216), 13 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:02,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 45.0) internal successors, (630), 14 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:02,061 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 45.0) internal successors, (630), 14 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:02,062 INFO L175 Difference]: Start difference. First operand has 169 places, 275 transitions, 3480 flow. Second operand 13 states and 216 transitions. [2023-11-26 12:01:02,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 396 transitions, 5390 flow [2023-11-26 12:01:02,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 396 transitions, 5147 flow, removed 30 selfloop flow, removed 9 redundant places. [2023-11-26 12:01:02,441 INFO L231 Difference]: Finished difference. Result has 178 places, 315 transitions, 4091 flow [2023-11-26 12:01:02,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3263, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4091, PETRI_PLACES=178, PETRI_TRANSITIONS=315} [2023-11-26 12:01:02,443 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 132 predicate places. [2023-11-26 12:01:02,443 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 315 transitions, 4091 flow [2023-11-26 12:01:02,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:02,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:02,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:02,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:01:02,444 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:01:02,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:02,444 INFO L85 PathProgramCache]: Analyzing trace with hash -977756452, now seen corresponding path program 3 times [2023-11-26 12:01:02,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:02,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195433098] [2023-11-26 12:01:02,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:02,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:02,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:02,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:02,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195433098] [2023-11-26 12:01:02,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195433098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:02,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:02,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:01:02,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894551516] [2023-11-26 12:01:02,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:02,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:01:02,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:02,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:01:02,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:01:02,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:01:02,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 315 transitions, 4091 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:02,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:02,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:01:02,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:05,309 INFO L124 PetriNetUnfolderBase]: 4876/8628 cut-off events. [2023-11-26 12:01:05,309 INFO L125 PetriNetUnfolderBase]: For 63559/63565 co-relation queries the response was YES. [2023-11-26 12:01:05,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45228 conditions, 8628 events. 4876/8628 cut-off events. For 63559/63565 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 61638 event pairs, 2554 based on Foata normal form. 124/8302 useless extension candidates. Maximal degree in co-relation 44285. Up to 5684 conditions per place. [2023-11-26 12:01:05,394 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 291 selfloop transitions, 141 changer transitions 19/454 dead transitions. [2023-11-26 12:01:05,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 454 transitions, 6430 flow [2023-11-26 12:01:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 12:01:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 12:01:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 246 transitions. [2023-11-26 12:01:05,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36444444444444446 [2023-11-26 12:01:05,397 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 246 transitions. [2023-11-26 12:01:05,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 246 transitions. [2023-11-26 12:01:05,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:05,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 246 transitions. [2023-11-26 12:01:05,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 16.4) internal successors, (246), 15 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:05,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:05,401 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:05,401 INFO L175 Difference]: Start difference. First operand has 178 places, 315 transitions, 4091 flow. Second operand 15 states and 246 transitions. [2023-11-26 12:01:05,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 454 transitions, 6430 flow [2023-11-26 12:01:05,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 454 transitions, 6266 flow, removed 16 selfloop flow, removed 6 redundant places. [2023-11-26 12:01:05,813 INFO L231 Difference]: Finished difference. Result has 191 places, 348 transitions, 4855 flow [2023-11-26 12:01:05,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3944, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4855, PETRI_PLACES=191, PETRI_TRANSITIONS=348} [2023-11-26 12:01:05,814 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 145 predicate places. [2023-11-26 12:01:05,814 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 348 transitions, 4855 flow [2023-11-26 12:01:05,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:05,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:05,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:05,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:01:05,815 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:01:05,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2031049010, now seen corresponding path program 2 times [2023-11-26 12:01:05,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:05,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677790613] [2023-11-26 12:01:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:05,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:06,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677790613] [2023-11-26 12:01:06,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677790613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:06,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:06,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:01:06,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931546775] [2023-11-26 12:01:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:06,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:01:06,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:06,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:01:06,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:01:06,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:01:06,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 348 transitions, 4855 flow. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:06,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:06,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:01:06,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:09,229 INFO L124 PetriNetUnfolderBase]: 5045/9003 cut-off events. [2023-11-26 12:01:09,229 INFO L125 PetriNetUnfolderBase]: For 78486/78488 co-relation queries the response was YES. [2023-11-26 12:01:09,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49964 conditions, 9003 events. 5045/9003 cut-off events. For 78486/78488 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 65251 event pairs, 2755 based on Foata normal form. 40/8570 useless extension candidates. Maximal degree in co-relation 49359. Up to 5627 conditions per place. [2023-11-26 12:01:09,345 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 287 selfloop transitions, 163 changer transitions 6/459 dead transitions. [2023-11-26 12:01:09,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 459 transitions, 6798 flow [2023-11-26 12:01:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 12:01:09,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 12:01:09,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 240 transitions. [2023-11-26 12:01:09,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2023-11-26 12:01:09,348 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 240 transitions. [2023-11-26 12:01:09,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 240 transitions. [2023-11-26 12:01:09,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:09,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 240 transitions. [2023-11-26 12:01:09,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 16.0) internal successors, (240), 15 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:09,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:09,353 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:09,353 INFO L175 Difference]: Start difference. First operand has 191 places, 348 transitions, 4855 flow. Second operand 15 states and 240 transitions. [2023-11-26 12:01:09,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 459 transitions, 6798 flow [2023-11-26 12:01:09,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 459 transitions, 6497 flow, removed 40 selfloop flow, removed 10 redundant places. [2023-11-26 12:01:09,854 INFO L231 Difference]: Finished difference. Result has 200 places, 379 transitions, 5423 flow [2023-11-26 12:01:09,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=4581, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5423, PETRI_PLACES=200, PETRI_TRANSITIONS=379} [2023-11-26 12:01:09,855 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 154 predicate places. [2023-11-26 12:01:09,856 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 379 transitions, 5423 flow [2023-11-26 12:01:09,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:09,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:09,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:09,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:01:09,857 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:01:09,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:09,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1014624184, now seen corresponding path program 4 times [2023-11-26 12:01:09,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:09,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331036854] [2023-11-26 12:01:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:09,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:10,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:10,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331036854] [2023-11-26 12:01:10,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331036854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:10,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:10,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:01:10,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400593787] [2023-11-26 12:01:10,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:10,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:01:10,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:10,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:01:10,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:01:10,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 12:01:10,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 379 transitions, 5423 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:10,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:10,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 12:01:10,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:14,195 INFO L124 PetriNetUnfolderBase]: 5423/9695 cut-off events. [2023-11-26 12:01:14,196 INFO L125 PetriNetUnfolderBase]: For 101237/101243 co-relation queries the response was YES. [2023-11-26 12:01:14,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55769 conditions, 9695 events. 5423/9695 cut-off events. For 101237/101243 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 71260 event pairs, 3082 based on Foata normal form. 102/9318 useless extension candidates. Maximal degree in co-relation 55115. Up to 5648 conditions per place. [2023-11-26 12:01:14,338 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 251 selfloop transitions, 220 changer transitions 14/488 dead transitions. [2023-11-26 12:01:14,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 488 transitions, 7442 flow [2023-11-26 12:01:14,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 12:01:14,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-26 12:01:14,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 336 transitions. [2023-11-26 12:01:14,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32463768115942027 [2023-11-26 12:01:14,341 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 336 transitions. [2023-11-26 12:01:14,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 336 transitions. [2023-11-26 12:01:14,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:14,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 336 transitions. [2023-11-26 12:01:14,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 14.608695652173912) internal successors, (336), 23 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:14,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 45.0) internal successors, (1080), 24 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:14,345 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 45.0) internal successors, (1080), 24 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:14,345 INFO L175 Difference]: Start difference. First operand has 200 places, 379 transitions, 5423 flow. Second operand 23 states and 336 transitions. [2023-11-26 12:01:14,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 488 transitions, 7442 flow