./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya --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 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:55:53,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:55:53,181 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:55:53,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:55:53,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:55:53,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:55:53,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:55:53,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:55:53,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:55:53,211 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:55:53,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:55:53,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:55:53,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:55:53,223 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:55:53,224 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:55:53,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:55:53,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:55:53,226 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:55:53,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:55:53,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:55:53,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:55:53,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:55:53,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:55:53,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:55:53,229 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:55:53,230 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:55:53,230 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:55:53,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:55:53,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:55:53,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:55:53,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:55:53,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:55:53,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:55:53,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:55:53,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:55:53,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:55:53,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:55:53,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:55:53,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:55:53,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:55:53,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:55:53,236 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:55:53,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:55:53,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:55:53,237 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_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2023-11-29 04:55:53,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:55:53,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:55:53,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:55:53,506 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:55:53,506 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:55:53,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-29 04:55:56,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:55:56,492 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:55:56,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-29 04:55:56,541 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/data/568046e40/ff2474e9a54440a3970bf54a77410888/FLAGb080f1d66 [2023-11-29 04:55:56,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/data/568046e40/ff2474e9a54440a3970bf54a77410888 [2023-11-29 04:55:56,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:55:56,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:55:56,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:55:56,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:55:56,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:55:56,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:55:56" (1/1) ... [2023-11-29 04:55:56,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@650d9408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:56, skipping insertion in model container [2023-11-29 04:55:56,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:55:56" (1/1) ... [2023-11-29 04:55:56,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:55:57,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:55:57,057 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:55:57,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:55:57,146 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:55:57,146 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:55:57,153 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:55:57,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57 WrapperNode [2023-11-29 04:55:57,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:55:57,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:55:57,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:55:57,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:55:57,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,207 INFO L138 Inliner]: procedures = 246, calls = 48, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 128 [2023-11-29 04:55:57,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:55:57,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:55:57,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:55:57,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:55:57,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,222 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,242 INFO L175 MemorySlicer]: Split 21 memory accesses to 5 slices as follows [2, 11, 3, 3, 2]. 52 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 1, 1, 0]. The 10 writes are split as follows [0, 6, 1, 1, 2]. [2023-11-29 04:55:57,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:55:57,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:55:57,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:55:57,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:55:57,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (1/1) ... [2023-11-29 04:55:57,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:55:57,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:57,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:55:57,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:55:57,372 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-29 04:55:57,373 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-29 04:55:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 04:55:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:55:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:55:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 04:55:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 04:55:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 04:55:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 04:55:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 04:55:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 04:55:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:55:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:55:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 04:55:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 04:55:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 04:55:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:55:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:55:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:55:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:55:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:55:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 04:55:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:55:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:55:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:55:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 04:55:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 04:55:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:55:57,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:55:57,379 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 04:55:57,633 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:55:57,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:55:57,853 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:55:58,019 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:55:58,020 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 04:55:58,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:55:58 BoogieIcfgContainer [2023-11-29 04:55:58,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:55:58,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:55:58,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:55:58,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:55:58,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:55:56" (1/3) ... [2023-11-29 04:55:58,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73781f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:55:58, skipping insertion in model container [2023-11-29 04:55:58,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:57" (2/3) ... [2023-11-29 04:55:58,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73781f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:55:58, skipping insertion in model container [2023-11-29 04:55:58,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:55:58" (3/3) ... [2023-11-29 04:55:58,029 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-29 04:55:58,038 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 04:55:58,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:55:58,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:55:58,049 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 04:55:58,096 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 04:55:58,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 82 flow [2023-11-29 04:55:58,179 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2023-11-29 04:55:58,180 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 04:55:58,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 37 events. 2/37 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 75 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 21. Up to 3 conditions per place. [2023-11-29 04:55:58,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 82 flow [2023-11-29 04:55:58,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 65 flow [2023-11-29 04:55:58,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:55:58,224 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;@225ab954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:55:58,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 04:55:58,232 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 04:55:58,232 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-11-29 04:55:58,233 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:55:58,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:55:58,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:55:58,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:55:58,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:58,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1948794928, now seen corresponding path program 1 times [2023-11-29 04:55:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769051791] [2023-11-29 04:55:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:55:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:55:59,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:59,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769051791] [2023-11-29 04:55:59,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769051791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:55:59,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:55:59,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:55:59,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773472674] [2023-11-29 04:55:59,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:55:59,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:55:59,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:59,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:55:59,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:55:59,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:55:59,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:59,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:55:59,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:55:59,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:55:59,693 INFO L124 PetriNetUnfolderBase]: 769/1306 cut-off events. [2023-11-29 04:55:59,694 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-29 04:55:59,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2638 conditions, 1306 events. 769/1306 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6477 event pairs, 347 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 2568. Up to 850 conditions per place. [2023-11-29 04:55:59,710 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 63 selfloop transitions, 20 changer transitions 2/86 dead transitions. [2023-11-29 04:55:59,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 366 flow [2023-11-29 04:55:59,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:55:59,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 04:55:59,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 129 transitions. [2023-11-29 04:55:59,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37941176470588234 [2023-11-29 04:55:59,725 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 129 transitions. [2023-11-29 04:55:59,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 129 transitions. [2023-11-29 04:55:59,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:55:59,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 129 transitions. [2023-11-29 04:55:59,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:59,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 34.0) internal successors, (374), 11 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:59,737 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 34.0) internal successors, (374), 11 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:59,739 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 65 flow. Second operand 10 states and 129 transitions. [2023-11-29 04:55:59,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 366 flow [2023-11-29 04:55:59,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 86 transitions, 355 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 04:55:59,746 INFO L231 Difference]: Finished difference. Result has 46 places, 48 transitions, 188 flow [2023-11-29 04:55:59,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=188, PETRI_PLACES=46, PETRI_TRANSITIONS=48} [2023-11-29 04:55:59,752 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2023-11-29 04:55:59,752 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 48 transitions, 188 flow [2023-11-29 04:55:59,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:59,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:55:59,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:55:59,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:55:59,754 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:55:59,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:59,754 INFO L85 PathProgramCache]: Analyzing trace with hash 172499394, now seen corresponding path program 1 times [2023-11-29 04:55:59,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:59,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151531471] [2023-11-29 04:55:59,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:00,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:00,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151531471] [2023-11-29 04:56:00,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151531471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:00,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:00,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:56:00,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186918963] [2023-11-29 04:56:00,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:00,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:56:00,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:00,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:56:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:56:00,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:00,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 48 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:00,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:00,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:00,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:00,857 INFO L124 PetriNetUnfolderBase]: 899/1554 cut-off events. [2023-11-29 04:56:00,857 INFO L125 PetriNetUnfolderBase]: For 782/782 co-relation queries the response was YES. [2023-11-29 04:56:00,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3993 conditions, 1554 events. 899/1554 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 8194 event pairs, 631 based on Foata normal form. 0/1372 useless extension candidates. Maximal degree in co-relation 2189. Up to 1126 conditions per place. [2023-11-29 04:56:00,871 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 64 selfloop transitions, 27 changer transitions 4/96 dead transitions. [2023-11-29 04:56:00,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 96 transitions, 550 flow [2023-11-29 04:56:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:56:00,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 04:56:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 125 transitions. [2023-11-29 04:56:00,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2023-11-29 04:56:00,876 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 125 transitions. [2023-11-29 04:56:00,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 125 transitions. [2023-11-29 04:56:00,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:00,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 125 transitions. [2023-11-29 04:56:00,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:00,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 34.0) internal successors, (374), 11 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:00,880 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 34.0) internal successors, (374), 11 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:00,880 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 188 flow. Second operand 10 states and 125 transitions. [2023-11-29 04:56:00,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 96 transitions, 550 flow [2023-11-29 04:56:00,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 96 transitions, 548 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:56:00,889 INFO L231 Difference]: Finished difference. Result has 58 places, 64 transitions, 344 flow [2023-11-29 04:56:00,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=58, PETRI_TRANSITIONS=64} [2023-11-29 04:56:00,890 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 23 predicate places. [2023-11-29 04:56:00,890 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 64 transitions, 344 flow [2023-11-29 04:56:00,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:00,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:00,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:00,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:56:00,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:00,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:00,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1052295327, now seen corresponding path program 1 times [2023-11-29 04:56:00,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:00,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145086306] [2023-11-29 04:56:00,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:00,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:01,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:01,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145086306] [2023-11-29 04:56:01,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145086306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:01,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:01,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:56:01,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040924747] [2023-11-29 04:56:01,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:01,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:56:01,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:01,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:56:01,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:56:01,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:01,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 64 transitions, 344 flow. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:01,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:01,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:01,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:02,398 INFO L124 PetriNetUnfolderBase]: 1186/2057 cut-off events. [2023-11-29 04:56:02,398 INFO L125 PetriNetUnfolderBase]: For 2001/2001 co-relation queries the response was YES. [2023-11-29 04:56:02,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6172 conditions, 2057 events. 1186/2057 cut-off events. For 2001/2001 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 11648 event pairs, 426 based on Foata normal form. 58/1973 useless extension candidates. Maximal degree in co-relation 4063. Up to 1127 conditions per place. [2023-11-29 04:56:02,418 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 77 selfloop transitions, 59 changer transitions 7/144 dead transitions. [2023-11-29 04:56:02,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 144 transitions, 995 flow [2023-11-29 04:56:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:56:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 04:56:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 171 transitions. [2023-11-29 04:56:02,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3592436974789916 [2023-11-29 04:56:02,421 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 171 transitions. [2023-11-29 04:56:02,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 171 transitions. [2023-11-29 04:56:02,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:02,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 171 transitions. [2023-11-29 04:56:02,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:02,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 34.0) internal successors, (510), 15 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:02,425 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 34.0) internal successors, (510), 15 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:02,425 INFO L175 Difference]: Start difference. First operand has 58 places, 64 transitions, 344 flow. Second operand 14 states and 171 transitions. [2023-11-29 04:56:02,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 144 transitions, 995 flow [2023-11-29 04:56:02,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 144 transitions, 995 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 04:56:02,438 INFO L231 Difference]: Finished difference. Result has 78 places, 95 transitions, 746 flow [2023-11-29 04:56:02,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=746, PETRI_PLACES=78, PETRI_TRANSITIONS=95} [2023-11-29 04:56:02,439 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 43 predicate places. [2023-11-29 04:56:02,439 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 95 transitions, 746 flow [2023-11-29 04:56:02,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:02,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:02,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:02,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:56:02,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:02,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash 196988450, now seen corresponding path program 1 times [2023-11-29 04:56:02,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:02,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307291046] [2023-11-29 04:56:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:02,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:03,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:03,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:03,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307291046] [2023-11-29 04:56:03,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307291046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:03,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:03,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:56:03,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948949199] [2023-11-29 04:56:03,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:03,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:56:03,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:03,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:56:03,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:56:03,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:03,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 95 transitions, 746 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:03,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:03,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:03,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:04,277 INFO L124 PetriNetUnfolderBase]: 1666/2949 cut-off events. [2023-11-29 04:56:04,278 INFO L125 PetriNetUnfolderBase]: For 8296/8300 co-relation queries the response was YES. [2023-11-29 04:56:04,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11200 conditions, 2949 events. 1666/2949 cut-off events. For 8296/8300 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 18551 event pairs, 875 based on Foata normal form. 76/2849 useless extension candidates. Maximal degree in co-relation 9782. Up to 1595 conditions per place. [2023-11-29 04:56:04,302 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 125 selfloop transitions, 100 changer transitions 9/235 dead transitions. [2023-11-29 04:56:04,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 235 transitions, 2239 flow [2023-11-29 04:56:04,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:56:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 04:56:04,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 227 transitions. [2023-11-29 04:56:04,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3338235294117647 [2023-11-29 04:56:04,305 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 227 transitions. [2023-11-29 04:56:04,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 227 transitions. [2023-11-29 04:56:04,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:04,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 227 transitions. [2023-11-29 04:56:04,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 11.35) internal successors, (227), 20 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:04,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 34.0) internal successors, (714), 21 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:04,309 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 34.0) internal successors, (714), 21 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:04,309 INFO L175 Difference]: Start difference. First operand has 78 places, 95 transitions, 746 flow. Second operand 20 states and 227 transitions. [2023-11-29 04:56:04,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 235 transitions, 2239 flow [2023-11-29 04:56:04,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 235 transitions, 2166 flow, removed 28 selfloop flow, removed 3 redundant places. [2023-11-29 04:56:04,331 INFO L231 Difference]: Finished difference. Result has 108 places, 160 transitions, 1668 flow [2023-11-29 04:56:04,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1668, PETRI_PLACES=108, PETRI_TRANSITIONS=160} [2023-11-29 04:56:04,332 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 73 predicate places. [2023-11-29 04:56:04,333 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 160 transitions, 1668 flow [2023-11-29 04:56:04,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:04,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:04,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:04,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 04:56:04,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:04,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:04,334 INFO L85 PathProgramCache]: Analyzing trace with hash 645641133, now seen corresponding path program 2 times [2023-11-29 04:56:04,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:04,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157790594] [2023-11-29 04:56:04,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:04,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:04,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:04,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157790594] [2023-11-29 04:56:04,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157790594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:04,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:04,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:56:04,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721640963] [2023-11-29 04:56:04,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:04,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:56:04,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:04,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:56:04,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:56:04,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:04,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 160 transitions, 1668 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:04,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:04,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:04,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:05,847 INFO L124 PetriNetUnfolderBase]: 1581/2833 cut-off events. [2023-11-29 04:56:05,848 INFO L125 PetriNetUnfolderBase]: For 14484/14488 co-relation queries the response was YES. [2023-11-29 04:56:05,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12995 conditions, 2833 events. 1581/2833 cut-off events. For 14484/14488 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17923 event pairs, 837 based on Foata normal form. 56/2697 useless extension candidates. Maximal degree in co-relation 12737. Up to 1853 conditions per place. [2023-11-29 04:56:05,884 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 104 selfloop transitions, 90 changer transitions 12/207 dead transitions. [2023-11-29 04:56:05,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 207 transitions, 2437 flow [2023-11-29 04:56:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:56:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 04:56:05,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2023-11-29 04:56:05,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2023-11-29 04:56:05,886 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 150 transitions. [2023-11-29 04:56:05,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 150 transitions. [2023-11-29 04:56:05,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:05,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 150 transitions. [2023-11-29 04:56:05,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:05,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 34.0) internal successors, (442), 13 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:05,889 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 34.0) internal successors, (442), 13 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:05,889 INFO L175 Difference]: Start difference. First operand has 108 places, 160 transitions, 1668 flow. Second operand 12 states and 150 transitions. [2023-11-29 04:56:05,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 207 transitions, 2437 flow [2023-11-29 04:56:05,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 207 transitions, 2336 flow, removed 39 selfloop flow, removed 3 redundant places. [2023-11-29 04:56:05,931 INFO L231 Difference]: Finished difference. Result has 120 places, 166 transitions, 1908 flow [2023-11-29 04:56:05,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1581, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1908, PETRI_PLACES=120, PETRI_TRANSITIONS=166} [2023-11-29 04:56:05,932 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 85 predicate places. [2023-11-29 04:56:05,932 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 166 transitions, 1908 flow [2023-11-29 04:56:05,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:05,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:05,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:05,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:56:05,932 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:05,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:05,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1739421631, now seen corresponding path program 3 times [2023-11-29 04:56:05,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:05,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130397003] [2023-11-29 04:56:05,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:05,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:06,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:06,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130397003] [2023-11-29 04:56:06,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130397003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:06,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:06,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:56:06,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146025556] [2023-11-29 04:56:06,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:06,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:56:06,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:06,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:56:06,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:56:06,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:06,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 166 transitions, 1908 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:06,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:06,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:06,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:07,593 INFO L124 PetriNetUnfolderBase]: 1879/3337 cut-off events. [2023-11-29 04:56:07,594 INFO L125 PetriNetUnfolderBase]: For 19568/19570 co-relation queries the response was YES. [2023-11-29 04:56:07,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16057 conditions, 3337 events. 1879/3337 cut-off events. For 19568/19570 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 21621 event pairs, 903 based on Foata normal form. 72/3191 useless extension candidates. Maximal degree in co-relation 15161. Up to 2056 conditions per place. [2023-11-29 04:56:07,640 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 172 selfloop transitions, 77 changer transitions 10/260 dead transitions. [2023-11-29 04:56:07,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 260 transitions, 3268 flow [2023-11-29 04:56:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:56:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 04:56:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 174 transitions. [2023-11-29 04:56:07,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3411764705882353 [2023-11-29 04:56:07,642 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 174 transitions. [2023-11-29 04:56:07,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 174 transitions. [2023-11-29 04:56:07,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:07,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 174 transitions. [2023-11-29 04:56:07,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 11.6) internal successors, (174), 15 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:07,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:07,645 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:07,645 INFO L175 Difference]: Start difference. First operand has 120 places, 166 transitions, 1908 flow. Second operand 15 states and 174 transitions. [2023-11-29 04:56:07,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 260 transitions, 3268 flow [2023-11-29 04:56:07,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 260 transitions, 3104 flow, removed 17 selfloop flow, removed 8 redundant places. [2023-11-29 04:56:07,762 INFO L231 Difference]: Finished difference. Result has 132 places, 196 transitions, 2362 flow [2023-11-29 04:56:07,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1770, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2362, PETRI_PLACES=132, PETRI_TRANSITIONS=196} [2023-11-29 04:56:07,764 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 97 predicate places. [2023-11-29 04:56:07,764 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 196 transitions, 2362 flow [2023-11-29 04:56:07,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:07,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:07,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:07,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:56:07,765 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:07,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:07,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1938723644, now seen corresponding path program 2 times [2023-11-29 04:56:07,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:07,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395651077] [2023-11-29 04:56:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:07,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:08,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:08,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395651077] [2023-11-29 04:56:08,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395651077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:08,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:08,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:56:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743268170] [2023-11-29 04:56:08,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:08,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:56:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:08,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:56:08,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:56:08,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:08,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 196 transitions, 2362 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:08,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:08,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:08,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:09,592 INFO L124 PetriNetUnfolderBase]: 1916/3445 cut-off events. [2023-11-29 04:56:09,592 INFO L125 PetriNetUnfolderBase]: For 26539/26541 co-relation queries the response was YES. [2023-11-29 04:56:09,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18065 conditions, 3445 events. 1916/3445 cut-off events. For 26539/26541 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 22705 event pairs, 1010 based on Foata normal form. 56/3295 useless extension candidates. Maximal degree in co-relation 17180. Up to 2053 conditions per place. [2023-11-29 04:56:09,624 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 160 selfloop transitions, 123 changer transitions 7/291 dead transitions. [2023-11-29 04:56:09,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 291 transitions, 3823 flow [2023-11-29 04:56:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:56:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 04:56:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2023-11-29 04:56:09,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32941176470588235 [2023-11-29 04:56:09,626 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 224 transitions. [2023-11-29 04:56:09,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 224 transitions. [2023-11-29 04:56:09,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:09,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 224 transitions. [2023-11-29 04:56:09,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 11.2) internal successors, (224), 20 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:09,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 34.0) internal successors, (714), 21 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:09,630 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 34.0) internal successors, (714), 21 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:09,630 INFO L175 Difference]: Start difference. First operand has 132 places, 196 transitions, 2362 flow. Second operand 20 states and 224 transitions. [2023-11-29 04:56:09,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 291 transitions, 3823 flow [2023-11-29 04:56:09,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 291 transitions, 3668 flow, removed 27 selfloop flow, removed 7 redundant places. [2023-11-29 04:56:09,721 INFO L231 Difference]: Finished difference. Result has 150 places, 228 transitions, 3021 flow [2023-11-29 04:56:09,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2228, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3021, PETRI_PLACES=150, PETRI_TRANSITIONS=228} [2023-11-29 04:56:09,722 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 115 predicate places. [2023-11-29 04:56:09,722 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 228 transitions, 3021 flow [2023-11-29 04:56:09,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:09,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:09,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:09,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:56:09,723 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:09,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1739421854, now seen corresponding path program 3 times [2023-11-29 04:56:09,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:09,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679133301] [2023-11-29 04:56:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:10,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679133301] [2023-11-29 04:56:10,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679133301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:10,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:10,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:56:10,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711577899] [2023-11-29 04:56:10,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:10,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:56:10,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:10,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:56:10,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:56:10,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:10,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 228 transitions, 3021 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:10,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:10,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:10,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:11,619 INFO L124 PetriNetUnfolderBase]: 1972/3615 cut-off events. [2023-11-29 04:56:11,619 INFO L125 PetriNetUnfolderBase]: For 35238/35240 co-relation queries the response was YES. [2023-11-29 04:56:11,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20235 conditions, 3615 events. 1972/3615 cut-off events. For 35238/35240 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 24620 event pairs, 1089 based on Foata normal form. 54/3469 useless extension candidates. Maximal degree in co-relation 19562. Up to 2180 conditions per place. [2023-11-29 04:56:11,662 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 140 selfloop transitions, 154 changer transitions 7/302 dead transitions. [2023-11-29 04:56:11,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 302 transitions, 4256 flow [2023-11-29 04:56:11,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:56:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-29 04:56:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 231 transitions. [2023-11-29 04:56:11,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3088235294117647 [2023-11-29 04:56:11,665 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 231 transitions. [2023-11-29 04:56:11,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 231 transitions. [2023-11-29 04:56:11,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:11,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 231 transitions. [2023-11-29 04:56:11,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 10.5) internal successors, (231), 22 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:11,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:11,669 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:11,670 INFO L175 Difference]: Start difference. First operand has 150 places, 228 transitions, 3021 flow. Second operand 22 states and 231 transitions. [2023-11-29 04:56:11,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 302 transitions, 4256 flow [2023-11-29 04:56:11,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 302 transitions, 4051 flow, removed 41 selfloop flow, removed 11 redundant places. [2023-11-29 04:56:11,767 INFO L231 Difference]: Finished difference. Result has 165 places, 245 transitions, 3438 flow [2023-11-29 04:56:11,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2827, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3438, PETRI_PLACES=165, PETRI_TRANSITIONS=245} [2023-11-29 04:56:11,768 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 130 predicate places. [2023-11-29 04:56:11,768 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 245 transitions, 3438 flow [2023-11-29 04:56:11,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:11,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:11,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:11,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:56:11,769 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:11,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1933159231, now seen corresponding path program 4 times [2023-11-29 04:56:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:11,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163112828] [2023-11-29 04:56:11,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:11,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:12,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:12,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163112828] [2023-11-29 04:56:12,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163112828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:12,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:12,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:56:12,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061216811] [2023-11-29 04:56:12,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:12,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:56:12,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:12,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:56:12,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:56:12,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:12,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 245 transitions, 3438 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:12,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:12,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:12,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:13,471 INFO L124 PetriNetUnfolderBase]: 1911/3535 cut-off events. [2023-11-29 04:56:13,472 INFO L125 PetriNetUnfolderBase]: For 38108/38112 co-relation queries the response was YES. [2023-11-29 04:56:13,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20496 conditions, 3535 events. 1911/3535 cut-off events. For 38108/38112 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 24305 event pairs, 1094 based on Foata normal form. 74/3417 useless extension candidates. Maximal degree in co-relation 19959. Up to 2181 conditions per place. [2023-11-29 04:56:13,506 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 175 selfloop transitions, 124 changer transitions 13/313 dead transitions. [2023-11-29 04:56:13,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 313 transitions, 4715 flow [2023-11-29 04:56:13,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:56:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-29 04:56:13,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 211 transitions. [2023-11-29 04:56:13,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.326625386996904 [2023-11-29 04:56:13,508 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 211 transitions. [2023-11-29 04:56:13,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 211 transitions. [2023-11-29 04:56:13,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:13,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 211 transitions. [2023-11-29 04:56:13,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 11.105263157894736) internal successors, (211), 19 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:13,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:13,510 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:13,510 INFO L175 Difference]: Start difference. First operand has 165 places, 245 transitions, 3438 flow. Second operand 19 states and 211 transitions. [2023-11-29 04:56:13,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 313 transitions, 4715 flow [2023-11-29 04:56:13,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 313 transitions, 4299 flow, removed 91 selfloop flow, removed 14 redundant places. [2023-11-29 04:56:13,636 INFO L231 Difference]: Finished difference. Result has 174 places, 256 transitions, 3570 flow [2023-11-29 04:56:13,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3108, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3570, PETRI_PLACES=174, PETRI_TRANSITIONS=256} [2023-11-29 04:56:13,637 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 139 predicate places. [2023-11-29 04:56:13,637 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 256 transitions, 3570 flow [2023-11-29 04:56:13,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:13,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:13,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:13,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 04:56:13,637 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:13,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:13,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1461846940, now seen corresponding path program 1 times [2023-11-29 04:56:13,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:13,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481569789] [2023-11-29 04:56:13,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:13,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:14,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:14,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481569789] [2023-11-29 04:56:14,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481569789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:14,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:14,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:14,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932329723] [2023-11-29 04:56:14,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:14,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:14,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:14,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:14,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:14,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:14,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 256 transitions, 3570 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:14,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:14,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:14,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:15,327 INFO L124 PetriNetUnfolderBase]: 1825/3361 cut-off events. [2023-11-29 04:56:15,327 INFO L125 PetriNetUnfolderBase]: For 36798/36798 co-relation queries the response was YES. [2023-11-29 04:56:15,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20151 conditions, 3361 events. 1825/3361 cut-off events. For 36798/36798 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 22684 event pairs, 870 based on Foata normal form. 0/3169 useless extension candidates. Maximal degree in co-relation 19616. Up to 2804 conditions per place. [2023-11-29 04:56:15,359 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 256 selfloop transitions, 71 changer transitions 4/332 dead transitions. [2023-11-29 04:56:15,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 332 transitions, 4934 flow [2023-11-29 04:56:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:56:15,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 04:56:15,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 178 transitions. [2023-11-29 04:56:15,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3272058823529412 [2023-11-29 04:56:15,361 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 178 transitions. [2023-11-29 04:56:15,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 178 transitions. [2023-11-29 04:56:15,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:15,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 178 transitions. [2023-11-29 04:56:15,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 11.125) internal successors, (178), 16 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:15,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:15,364 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:15,364 INFO L175 Difference]: Start difference. First operand has 174 places, 256 transitions, 3570 flow. Second operand 16 states and 178 transitions. [2023-11-29 04:56:15,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 332 transitions, 4934 flow [2023-11-29 04:56:15,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 332 transitions, 4702 flow, removed 29 selfloop flow, removed 11 redundant places. [2023-11-29 04:56:15,479 INFO L231 Difference]: Finished difference. Result has 188 places, 278 transitions, 3970 flow [2023-11-29 04:56:15,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3347, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3970, PETRI_PLACES=188, PETRI_TRANSITIONS=278} [2023-11-29 04:56:15,480 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 153 predicate places. [2023-11-29 04:56:15,480 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 278 transitions, 3970 flow [2023-11-29 04:56:15,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:15,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:15,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:15,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 04:56:15,481 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:15,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:15,481 INFO L85 PathProgramCache]: Analyzing trace with hash -149094017, now seen corresponding path program 1 times [2023-11-29 04:56:15,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:15,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202162520] [2023-11-29 04:56:15,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:15,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:15,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:15,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202162520] [2023-11-29 04:56:15,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202162520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:15,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:15,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:15,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762804056] [2023-11-29 04:56:15,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:15,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:15,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:15,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:15,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:15,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:15,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 278 transitions, 3970 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:15,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:15,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:15,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:17,295 INFO L124 PetriNetUnfolderBase]: 1874/3509 cut-off events. [2023-11-29 04:56:17,296 INFO L125 PetriNetUnfolderBase]: For 54339/54339 co-relation queries the response was YES. [2023-11-29 04:56:17,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21454 conditions, 3509 events. 1874/3509 cut-off events. For 54339/54339 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 24085 event pairs, 663 based on Foata normal form. 74/3485 useless extension candidates. Maximal degree in co-relation 21028. Up to 1588 conditions per place. [2023-11-29 04:56:17,328 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 212 selfloop transitions, 154 changer transitions 21/388 dead transitions. [2023-11-29 04:56:17,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 388 transitions, 5811 flow [2023-11-29 04:56:17,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:56:17,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-29 04:56:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 234 transitions. [2023-11-29 04:56:17,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31283422459893045 [2023-11-29 04:56:17,331 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 234 transitions. [2023-11-29 04:56:17,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 234 transitions. [2023-11-29 04:56:17,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:17,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 234 transitions. [2023-11-29 04:56:17,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 10.636363636363637) internal successors, (234), 22 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:17,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:17,334 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:17,334 INFO L175 Difference]: Start difference. First operand has 188 places, 278 transitions, 3970 flow. Second operand 22 states and 234 transitions. [2023-11-29 04:56:17,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 388 transitions, 5811 flow [2023-11-29 04:56:17,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 388 transitions, 5440 flow, removed 139 selfloop flow, removed 7 redundant places. [2023-11-29 04:56:17,477 INFO L231 Difference]: Finished difference. Result has 206 places, 300 transitions, 4425 flow [2023-11-29 04:56:17,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3601, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4425, PETRI_PLACES=206, PETRI_TRANSITIONS=300} [2023-11-29 04:56:17,478 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 171 predicate places. [2023-11-29 04:56:17,478 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 300 transitions, 4425 flow [2023-11-29 04:56:17,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:17,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:17,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:17,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 04:56:17,478 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:17,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:17,479 INFO L85 PathProgramCache]: Analyzing trace with hash 183373542, now seen corresponding path program 2 times [2023-11-29 04:56:17,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:17,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465564110] [2023-11-29 04:56:17,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:17,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:17,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:17,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465564110] [2023-11-29 04:56:17,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465564110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:17,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:17,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:17,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083228892] [2023-11-29 04:56:17,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:17,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:17,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:17,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:17,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:17,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:17,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 300 transitions, 4425 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:17,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:17,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:17,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:19,316 INFO L124 PetriNetUnfolderBase]: 1739/3336 cut-off events. [2023-11-29 04:56:19,316 INFO L125 PetriNetUnfolderBase]: For 62012/62012 co-relation queries the response was YES. [2023-11-29 04:56:19,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21927 conditions, 3336 events. 1739/3336 cut-off events. For 62012/62012 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 23704 event pairs, 580 based on Foata normal form. 28/3266 useless extension candidates. Maximal degree in co-relation 21493. Up to 1483 conditions per place. [2023-11-29 04:56:19,348 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 301 selfloop transitions, 107 changer transitions 8/417 dead transitions. [2023-11-29 04:56:19,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 417 transitions, 6540 flow [2023-11-29 04:56:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:56:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-29 04:56:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 222 transitions. [2023-11-29 04:56:19,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34365325077399383 [2023-11-29 04:56:19,351 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 222 transitions. [2023-11-29 04:56:19,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 222 transitions. [2023-11-29 04:56:19,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:19,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 222 transitions. [2023-11-29 04:56:19,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 11.68421052631579) internal successors, (222), 19 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:19,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:19,354 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:19,354 INFO L175 Difference]: Start difference. First operand has 206 places, 300 transitions, 4425 flow. Second operand 19 states and 222 transitions. [2023-11-29 04:56:19,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 417 transitions, 6540 flow [2023-11-29 04:56:19,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 417 transitions, 6149 flow, removed 142 selfloop flow, removed 12 redundant places. [2023-11-29 04:56:19,589 INFO L231 Difference]: Finished difference. Result has 219 places, 330 transitions, 5012 flow [2023-11-29 04:56:19,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=4209, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5012, PETRI_PLACES=219, PETRI_TRANSITIONS=330} [2023-11-29 04:56:19,590 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 184 predicate places. [2023-11-29 04:56:19,590 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 330 transitions, 5012 flow [2023-11-29 04:56:19,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:19,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:19,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:19,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 04:56:19,591 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:19,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash 185161002, now seen corresponding path program 3 times [2023-11-29 04:56:19,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:19,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126911814] [2023-11-29 04:56:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:19,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:20,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:20,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:20,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126911814] [2023-11-29 04:56:20,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126911814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:20,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:20,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:20,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970911019] [2023-11-29 04:56:20,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:20,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:20,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:20,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:20,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:20,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:20,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 330 transitions, 5012 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:20,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:20,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:20,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:21,623 INFO L124 PetriNetUnfolderBase]: 1703/3277 cut-off events. [2023-11-29 04:56:21,624 INFO L125 PetriNetUnfolderBase]: For 55157/55157 co-relation queries the response was YES. [2023-11-29 04:56:21,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21009 conditions, 3277 events. 1703/3277 cut-off events. For 55157/55157 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 23280 event pairs, 716 based on Foata normal form. 28/3207 useless extension candidates. Maximal degree in co-relation 20581. Up to 2339 conditions per place. [2023-11-29 04:56:21,654 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 308 selfloop transitions, 91 changer transitions 6/406 dead transitions. [2023-11-29 04:56:21,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 406 transitions, 6367 flow [2023-11-29 04:56:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:56:21,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-29 04:56:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 210 transitions. [2023-11-29 04:56:21,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32507739938080493 [2023-11-29 04:56:21,655 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 210 transitions. [2023-11-29 04:56:21,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 210 transitions. [2023-11-29 04:56:21,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:21,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 210 transitions. [2023-11-29 04:56:21,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 11.052631578947368) internal successors, (210), 19 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:21,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:21,657 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:21,657 INFO L175 Difference]: Start difference. First operand has 219 places, 330 transitions, 5012 flow. Second operand 19 states and 210 transitions. [2023-11-29 04:56:21,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 406 transitions, 6367 flow [2023-11-29 04:56:21,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 406 transitions, 6092 flow, removed 92 selfloop flow, removed 6 redundant places. [2023-11-29 04:56:21,868 INFO L231 Difference]: Finished difference. Result has 238 places, 337 transitions, 5141 flow [2023-11-29 04:56:21,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=4768, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5141, PETRI_PLACES=238, PETRI_TRANSITIONS=337} [2023-11-29 04:56:21,869 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 203 predicate places. [2023-11-29 04:56:21,869 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 337 transitions, 5141 flow [2023-11-29 04:56:21,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:21,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:21,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:21,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 04:56:21,870 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:21,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash -276223331, now seen corresponding path program 1 times [2023-11-29 04:56:21,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:21,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084719277] [2023-11-29 04:56:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:21,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:21,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084719277] [2023-11-29 04:56:21,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084719277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:21,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:21,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:56:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743051395] [2023-11-29 04:56:21,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:21,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:56:21,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:21,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:56:21,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:56:21,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 34 [2023-11-29 04:56:21,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 337 transitions, 5141 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:21,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:21,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 34 [2023-11-29 04:56:21,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:22,432 INFO L124 PetriNetUnfolderBase]: 928/1803 cut-off events. [2023-11-29 04:56:22,432 INFO L125 PetriNetUnfolderBase]: For 27407/27407 co-relation queries the response was YES. [2023-11-29 04:56:22,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11124 conditions, 1803 events. 928/1803 cut-off events. For 27407/27407 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 11648 event pairs, 183 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 10906. Up to 1161 conditions per place. [2023-11-29 04:56:22,448 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 304 selfloop transitions, 43 changer transitions 19/366 dead transitions. [2023-11-29 04:56:22,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 366 transitions, 6460 flow [2023-11-29 04:56:22,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:56:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 04:56:22,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2023-11-29 04:56:22,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2023-11-29 04:56:22,450 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 66 transitions. [2023-11-29 04:56:22,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 66 transitions. [2023-11-29 04:56:22,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:22,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 66 transitions. [2023-11-29 04:56:22,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:22,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:22,451 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:22,451 INFO L175 Difference]: Start difference. First operand has 238 places, 337 transitions, 5141 flow. Second operand 4 states and 66 transitions. [2023-11-29 04:56:22,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 366 transitions, 6460 flow [2023-11-29 04:56:22,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 366 transitions, 6152 flow, removed 54 selfloop flow, removed 14 redundant places. [2023-11-29 04:56:22,570 INFO L231 Difference]: Finished difference. Result has 222 places, 242 transitions, 3587 flow [2023-11-29 04:56:22,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3713, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3587, PETRI_PLACES=222, PETRI_TRANSITIONS=242} [2023-11-29 04:56:22,571 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 187 predicate places. [2023-11-29 04:56:22,571 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 242 transitions, 3587 flow [2023-11-29 04:56:22,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:22,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:22,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:22,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 04:56:22,571 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:22,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:22,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1794404512, now seen corresponding path program 4 times [2023-11-29 04:56:22,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:22,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725848317] [2023-11-29 04:56:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:22,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:22,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:22,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725848317] [2023-11-29 04:56:22,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725848317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:22,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:22,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:56:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49226999] [2023-11-29 04:56:22,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:22,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:56:22,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:22,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:56:22,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:56:22,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:22,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 242 transitions, 3587 flow. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:22,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:22,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:22,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:23,747 INFO L124 PetriNetUnfolderBase]: 964/1885 cut-off events. [2023-11-29 04:56:23,747 INFO L125 PetriNetUnfolderBase]: For 22091/22091 co-relation queries the response was YES. [2023-11-29 04:56:23,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11240 conditions, 1885 events. 964/1885 cut-off events. For 22091/22091 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11932 event pairs, 163 based on Foata normal form. 26/1863 useless extension candidates. Maximal degree in co-relation 10874. Up to 463 conditions per place. [2023-11-29 04:56:23,786 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 220 selfloop transitions, 109 changer transitions 9/338 dead transitions. [2023-11-29 04:56:23,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 338 transitions, 5116 flow [2023-11-29 04:56:23,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:56:23,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 04:56:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 211 transitions. [2023-11-29 04:56:23,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34477124183006536 [2023-11-29 04:56:23,788 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 211 transitions. [2023-11-29 04:56:23,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 211 transitions. [2023-11-29 04:56:23,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:23,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 211 transitions. [2023-11-29 04:56:23,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 11.722222222222221) internal successors, (211), 18 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:23,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:23,790 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:23,790 INFO L175 Difference]: Start difference. First operand has 222 places, 242 transitions, 3587 flow. Second operand 18 states and 211 transitions. [2023-11-29 04:56:23,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 338 transitions, 5116 flow [2023-11-29 04:56:23,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 338 transitions, 4992 flow, removed 26 selfloop flow, removed 8 redundant places. [2023-11-29 04:56:23,886 INFO L231 Difference]: Finished difference. Result has 229 places, 258 transitions, 4042 flow [2023-11-29 04:56:23,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3521, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4042, PETRI_PLACES=229, PETRI_TRANSITIONS=258} [2023-11-29 04:56:23,887 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 194 predicate places. [2023-11-29 04:56:23,887 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 258 transitions, 4042 flow [2023-11-29 04:56:23,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:23,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:23,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:23,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 04:56:23,887 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:23,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:23,888 INFO L85 PathProgramCache]: Analyzing trace with hash 327569124, now seen corresponding path program 1 times [2023-11-29 04:56:23,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:23,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954647537] [2023-11-29 04:56:23,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:23,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:24,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:24,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:24,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954647537] [2023-11-29 04:56:24,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954647537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:24,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:24,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:56:24,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883864558] [2023-11-29 04:56:24,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:24,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:56:24,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:24,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:56:24,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:56:24,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:24,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 258 transitions, 4042 flow. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:24,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:24,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:24,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:25,117 INFO L124 PetriNetUnfolderBase]: 900/1767 cut-off events. [2023-11-29 04:56:25,117 INFO L125 PetriNetUnfolderBase]: For 22788/22788 co-relation queries the response was YES. [2023-11-29 04:56:25,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10992 conditions, 1767 events. 900/1767 cut-off events. For 22788/22788 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 10994 event pairs, 154 based on Foata normal form. 0/1743 useless extension candidates. Maximal degree in co-relation 10797. Up to 336 conditions per place. [2023-11-29 04:56:25,133 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 199 selfloop transitions, 118 changer transitions 0/317 dead transitions. [2023-11-29 04:56:25,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 317 transitions, 5139 flow [2023-11-29 04:56:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:56:25,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 04:56:25,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 199 transitions. [2023-11-29 04:56:25,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32516339869281047 [2023-11-29 04:56:25,135 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 199 transitions. [2023-11-29 04:56:25,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 199 transitions. [2023-11-29 04:56:25,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:25,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 199 transitions. [2023-11-29 04:56:25,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 11.055555555555555) internal successors, (199), 18 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:25,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:25,137 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:25,137 INFO L175 Difference]: Start difference. First operand has 229 places, 258 transitions, 4042 flow. Second operand 18 states and 199 transitions. [2023-11-29 04:56:25,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 317 transitions, 5139 flow [2023-11-29 04:56:25,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 317 transitions, 4953 flow, removed 84 selfloop flow, removed 3 redundant places. [2023-11-29 04:56:25,242 INFO L231 Difference]: Finished difference. Result has 249 places, 264 transitions, 4316 flow [2023-11-29 04:56:25,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3890, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4316, PETRI_PLACES=249, PETRI_TRANSITIONS=264} [2023-11-29 04:56:25,243 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 214 predicate places. [2023-11-29 04:56:25,243 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 264 transitions, 4316 flow [2023-11-29 04:56:25,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:25,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:25,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:25,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 04:56:25,243 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:25,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash 327569125, now seen corresponding path program 1 times [2023-11-29 04:56:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:25,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900012392] [2023-11-29 04:56:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:25,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900012392] [2023-11-29 04:56:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900012392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:25,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:25,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:25,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457421470] [2023-11-29 04:56:25,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:25,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:25,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:25,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:25,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:25,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:25,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 264 transitions, 4316 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:25,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:25,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:25,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:26,710 INFO L124 PetriNetUnfolderBase]: 982/1937 cut-off events. [2023-11-29 04:56:26,711 INFO L125 PetriNetUnfolderBase]: For 27197/27197 co-relation queries the response was YES. [2023-11-29 04:56:26,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12155 conditions, 1937 events. 982/1937 cut-off events. For 27197/27197 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 12324 event pairs, 325 based on Foata normal form. 24/1961 useless extension candidates. Maximal degree in co-relation 11979. Up to 794 conditions per place. [2023-11-29 04:56:26,730 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 206 selfloop transitions, 104 changer transitions 42/352 dead transitions. [2023-11-29 04:56:26,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 352 transitions, 5921 flow [2023-11-29 04:56:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:56:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 04:56:26,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 223 transitions. [2023-11-29 04:56:26,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2851662404092072 [2023-11-29 04:56:26,732 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 223 transitions. [2023-11-29 04:56:26,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 223 transitions. [2023-11-29 04:56:26,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:26,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 223 transitions. [2023-11-29 04:56:26,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 9.695652173913043) internal successors, (223), 23 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:26,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 34.0) internal successors, (816), 24 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:26,735 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 34.0) internal successors, (816), 24 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:26,735 INFO L175 Difference]: Start difference. First operand has 249 places, 264 transitions, 4316 flow. Second operand 23 states and 223 transitions. [2023-11-29 04:56:26,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 352 transitions, 5921 flow [2023-11-29 04:56:26,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 352 transitions, 5564 flow, removed 29 selfloop flow, removed 13 redundant places. [2023-11-29 04:56:26,874 INFO L231 Difference]: Finished difference. Result has 260 places, 255 transitions, 4126 flow [2023-11-29 04:56:26,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3989, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4126, PETRI_PLACES=260, PETRI_TRANSITIONS=255} [2023-11-29 04:56:26,875 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 225 predicate places. [2023-11-29 04:56:26,875 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 255 transitions, 4126 flow [2023-11-29 04:56:26,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:26,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:26,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:26,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 04:56:26,875 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:26,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:26,876 INFO L85 PathProgramCache]: Analyzing trace with hash 327354085, now seen corresponding path program 2 times [2023-11-29 04:56:26,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:26,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071160294] [2023-11-29 04:56:26,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:26,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:27,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:27,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:27,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071160294] [2023-11-29 04:56:27,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071160294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:27,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:27,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:27,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595305358] [2023-11-29 04:56:27,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:27,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:27,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:27,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:27,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:27,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:27,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 255 transitions, 4126 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:27,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:27,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:27,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:28,111 INFO L124 PetriNetUnfolderBase]: 903/1792 cut-off events. [2023-11-29 04:56:28,111 INFO L125 PetriNetUnfolderBase]: For 24142/24142 co-relation queries the response was YES. [2023-11-29 04:56:28,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11145 conditions, 1792 events. 903/1792 cut-off events. For 24142/24142 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 11290 event pairs, 359 based on Foata normal form. 16/1808 useless extension candidates. Maximal degree in co-relation 10973. Up to 1339 conditions per place. [2023-11-29 04:56:28,128 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 178 selfloop transitions, 59 changer transitions 56/293 dead transitions. [2023-11-29 04:56:28,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 293 transitions, 5022 flow [2023-11-29 04:56:28,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:56:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 04:56:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 144 transitions. [2023-11-29 04:56:28,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3025210084033613 [2023-11-29 04:56:28,129 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 144 transitions. [2023-11-29 04:56:28,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 144 transitions. [2023-11-29 04:56:28,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:28,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 144 transitions. [2023-11-29 04:56:28,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 14 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:28,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 34.0) internal successors, (510), 15 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:28,132 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 34.0) internal successors, (510), 15 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:28,132 INFO L175 Difference]: Start difference. First operand has 260 places, 255 transitions, 4126 flow. Second operand 14 states and 144 transitions. [2023-11-29 04:56:28,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 293 transitions, 5022 flow [2023-11-29 04:56:28,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 293 transitions, 4778 flow, removed 33 selfloop flow, removed 17 redundant places. [2023-11-29 04:56:28,301 INFO L231 Difference]: Finished difference. Result has 248 places, 222 transitions, 3588 flow [2023-11-29 04:56:28,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3868, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3588, PETRI_PLACES=248, PETRI_TRANSITIONS=222} [2023-11-29 04:56:28,302 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 213 predicate places. [2023-11-29 04:56:28,303 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 222 transitions, 3588 flow [2023-11-29 04:56:28,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:28,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:28,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:28,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 04:56:28,303 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:28,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash 181589604, now seen corresponding path program 5 times [2023-11-29 04:56:28,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:28,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060726998] [2023-11-29 04:56:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:28,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:28,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:28,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060726998] [2023-11-29 04:56:28,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060726998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:28,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:28,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630843293] [2023-11-29 04:56:28,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:28,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:28,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:28,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:28,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:28,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:28,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 222 transitions, 3588 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:28,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:28,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:28,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:29,486 INFO L124 PetriNetUnfolderBase]: 799/1586 cut-off events. [2023-11-29 04:56:29,486 INFO L125 PetriNetUnfolderBase]: For 18371/18371 co-relation queries the response was YES. [2023-11-29 04:56:29,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9503 conditions, 1586 events. 799/1586 cut-off events. For 18371/18371 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9710 event pairs, 301 based on Foata normal form. 16/1602 useless extension candidates. Maximal degree in co-relation 9382. Up to 1154 conditions per place. [2023-11-29 04:56:29,500 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 188 selfloop transitions, 61 changer transitions 12/261 dead transitions. [2023-11-29 04:56:29,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 261 transitions, 4243 flow [2023-11-29 04:56:29,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:56:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 04:56:29,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 160 transitions. [2023-11-29 04:56:29,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3137254901960784 [2023-11-29 04:56:29,501 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 160 transitions. [2023-11-29 04:56:29,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 160 transitions. [2023-11-29 04:56:29,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:29,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 160 transitions. [2023-11-29 04:56:29,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 10.666666666666666) internal successors, (160), 15 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:29,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:29,503 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:29,503 INFO L175 Difference]: Start difference. First operand has 248 places, 222 transitions, 3588 flow. Second operand 15 states and 160 transitions. [2023-11-29 04:56:29,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 261 transitions, 4243 flow [2023-11-29 04:56:29,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 261 transitions, 4010 flow, removed 20 selfloop flow, removed 19 redundant places. [2023-11-29 04:56:29,581 INFO L231 Difference]: Finished difference. Result has 236 places, 217 transitions, 3417 flow [2023-11-29 04:56:29,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3358, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3417, PETRI_PLACES=236, PETRI_TRANSITIONS=217} [2023-11-29 04:56:29,581 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 201 predicate places. [2023-11-29 04:56:29,582 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 217 transitions, 3417 flow [2023-11-29 04:56:29,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:29,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:29,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:29,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 04:56:29,582 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:29,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:29,582 INFO L85 PathProgramCache]: Analyzing trace with hash -640804602, now seen corresponding path program 2 times [2023-11-29 04:56:29,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:29,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410559683] [2023-11-29 04:56:29,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:29,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:30,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:30,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410559683] [2023-11-29 04:56:30,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410559683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:30,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:30,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:30,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107497848] [2023-11-29 04:56:30,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:30,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:30,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:30,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:30,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:30,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:30,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 217 transitions, 3417 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:30,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:30,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:30,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:31,237 INFO L124 PetriNetUnfolderBase]: 801/1596 cut-off events. [2023-11-29 04:56:31,237 INFO L125 PetriNetUnfolderBase]: For 17595/17595 co-relation queries the response was YES. [2023-11-29 04:56:31,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9422 conditions, 1596 events. 801/1596 cut-off events. For 17595/17595 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9820 event pairs, 244 based on Foata normal form. 32/1628 useless extension candidates. Maximal degree in co-relation 9062. Up to 975 conditions per place. [2023-11-29 04:56:31,251 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 191 selfloop transitions, 91 changer transitions 6/288 dead transitions. [2023-11-29 04:56:31,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 288 transitions, 4418 flow [2023-11-29 04:56:31,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 04:56:31,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-11-29 04:56:31,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 254 transitions. [2023-11-29 04:56:31,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2668067226890756 [2023-11-29 04:56:31,252 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 254 transitions. [2023-11-29 04:56:31,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 254 transitions. [2023-11-29 04:56:31,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:31,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 254 transitions. [2023-11-29 04:56:31,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 9.071428571428571) internal successors, (254), 28 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:31,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 34.0) internal successors, (986), 29 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:31,255 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 34.0) internal successors, (986), 29 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:31,255 INFO L175 Difference]: Start difference. First operand has 236 places, 217 transitions, 3417 flow. Second operand 28 states and 254 transitions. [2023-11-29 04:56:31,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 288 transitions, 4418 flow [2023-11-29 04:56:31,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 288 transitions, 4289 flow, removed 14 selfloop flow, removed 8 redundant places. [2023-11-29 04:56:31,318 INFO L231 Difference]: Finished difference. Result has 256 places, 223 transitions, 3593 flow [2023-11-29 04:56:31,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3288, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3593, PETRI_PLACES=256, PETRI_TRANSITIONS=223} [2023-11-29 04:56:31,319 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 221 predicate places. [2023-11-29 04:56:31,319 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 223 transitions, 3593 flow [2023-11-29 04:56:31,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:31,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:31,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:31,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 04:56:31,319 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:31,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:31,320 INFO L85 PathProgramCache]: Analyzing trace with hash -640804601, now seen corresponding path program 2 times [2023-11-29 04:56:31,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:31,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104390377] [2023-11-29 04:56:31,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:31,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:31,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:31,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104390377] [2023-11-29 04:56:31,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104390377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:31,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:31,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:56:31,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137369602] [2023-11-29 04:56:31,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:31,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:56:31,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:31,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:56:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:56:31,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:31,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 223 transitions, 3593 flow. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:31,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:31,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:31,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:33,141 INFO L124 PetriNetUnfolderBase]: 826/1649 cut-off events. [2023-11-29 04:56:33,141 INFO L125 PetriNetUnfolderBase]: For 18789/18789 co-relation queries the response was YES. [2023-11-29 04:56:33,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9942 conditions, 1649 events. 826/1649 cut-off events. For 18789/18789 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10260 event pairs, 246 based on Foata normal form. 16/1665 useless extension candidates. Maximal degree in co-relation 9593. Up to 780 conditions per place. [2023-11-29 04:56:33,155 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 143 selfloop transitions, 105 changer transitions 41/289 dead transitions. [2023-11-29 04:56:33,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 289 transitions, 4640 flow [2023-11-29 04:56:33,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 04:56:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-29 04:56:33,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 261 transitions. [2023-11-29 04:56:33,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2647058823529412 [2023-11-29 04:56:33,157 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 261 transitions. [2023-11-29 04:56:33,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 261 transitions. [2023-11-29 04:56:33,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:33,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 261 transitions. [2023-11-29 04:56:33,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 9.0) internal successors, (261), 29 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:33,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 34.0) internal successors, (1020), 30 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:33,160 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 34.0) internal successors, (1020), 30 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:33,161 INFO L175 Difference]: Start difference. First operand has 256 places, 223 transitions, 3593 flow. Second operand 29 states and 261 transitions. [2023-11-29 04:56:33,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 289 transitions, 4640 flow [2023-11-29 04:56:33,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 289 transitions, 4371 flow, removed 26 selfloop flow, removed 22 redundant places. [2023-11-29 04:56:33,247 INFO L231 Difference]: Finished difference. Result has 264 places, 215 transitions, 3421 flow [2023-11-29 04:56:33,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3348, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=3421, PETRI_PLACES=264, PETRI_TRANSITIONS=215} [2023-11-29 04:56:33,248 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 229 predicate places. [2023-11-29 04:56:33,248 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 215 transitions, 3421 flow [2023-11-29 04:56:33,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:33,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:33,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:33,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 04:56:33,249 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:33,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:33,249 INFO L85 PathProgramCache]: Analyzing trace with hash -847557762, now seen corresponding path program 6 times [2023-11-29 04:56:33,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:33,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948131856] [2023-11-29 04:56:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:33,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:33,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:33,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948131856] [2023-11-29 04:56:33,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948131856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:33,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:33,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:33,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864715046] [2023-11-29 04:56:33,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:33,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:33,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:33,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:33,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:33,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 215 transitions, 3421 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:33,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:33,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:33,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:34,299 INFO L124 PetriNetUnfolderBase]: 766/1563 cut-off events. [2023-11-29 04:56:34,299 INFO L125 PetriNetUnfolderBase]: For 17536/17536 co-relation queries the response was YES. [2023-11-29 04:56:34,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8985 conditions, 1563 events. 766/1563 cut-off events. For 17536/17536 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9775 event pairs, 247 based on Foata normal form. 42/1605 useless extension candidates. Maximal degree in co-relation 8716. Up to 1003 conditions per place. [2023-11-29 04:56:34,315 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 178 selfloop transitions, 72 changer transitions 7/257 dead transitions. [2023-11-29 04:56:34,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 257 transitions, 4230 flow [2023-11-29 04:56:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:56:34,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 04:56:34,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 151 transitions. [2023-11-29 04:56:34,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.296078431372549 [2023-11-29 04:56:34,317 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 151 transitions. [2023-11-29 04:56:34,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 151 transitions. [2023-11-29 04:56:34,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:34,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 151 transitions. [2023-11-29 04:56:34,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 15 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:34,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:34,318 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:34,318 INFO L175 Difference]: Start difference. First operand has 264 places, 215 transitions, 3421 flow. Second operand 15 states and 151 transitions. [2023-11-29 04:56:34,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 257 transitions, 4230 flow [2023-11-29 04:56:34,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 257 transitions, 4025 flow, removed 23 selfloop flow, removed 22 redundant places. [2023-11-29 04:56:34,383 INFO L231 Difference]: Finished difference. Result has 255 places, 222 transitions, 3533 flow [2023-11-29 04:56:34,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3224, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3533, PETRI_PLACES=255, PETRI_TRANSITIONS=222} [2023-11-29 04:56:34,384 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 220 predicate places. [2023-11-29 04:56:34,384 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 222 transitions, 3533 flow [2023-11-29 04:56:34,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:34,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:34,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:34,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 04:56:34,385 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:34,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:34,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2110392283, now seen corresponding path program 3 times [2023-11-29 04:56:34,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:34,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836746229] [2023-11-29 04:56:34,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:34,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:34,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:34,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836746229] [2023-11-29 04:56:34,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836746229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:34,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:34,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:56:34,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349789909] [2023-11-29 04:56:34,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:34,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:56:34,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:34,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:56:34,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:56:34,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:34,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 222 transitions, 3533 flow. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:34,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:34,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:34,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:36,271 INFO L124 PetriNetUnfolderBase]: 725/1484 cut-off events. [2023-11-29 04:56:36,272 INFO L125 PetriNetUnfolderBase]: For 15899/15899 co-relation queries the response was YES. [2023-11-29 04:56:36,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8696 conditions, 1484 events. 725/1484 cut-off events. For 15899/15899 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 9157 event pairs, 200 based on Foata normal form. 8/1492 useless extension candidates. Maximal degree in co-relation 8336. Up to 798 conditions per place. [2023-11-29 04:56:36,284 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 147 selfloop transitions, 104 changer transitions 31/282 dead transitions. [2023-11-29 04:56:36,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 282 transitions, 4349 flow [2023-11-29 04:56:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 04:56:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-11-29 04:56:36,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 267 transitions. [2023-11-29 04:56:36,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25332068311195444 [2023-11-29 04:56:36,286 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 267 transitions. [2023-11-29 04:56:36,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 267 transitions. [2023-11-29 04:56:36,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:36,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 267 transitions. [2023-11-29 04:56:36,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 8.612903225806452) internal successors, (267), 31 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:36,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 34.0) internal successors, (1088), 32 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:36,290 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 34.0) internal successors, (1088), 32 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:36,290 INFO L175 Difference]: Start difference. First operand has 255 places, 222 transitions, 3533 flow. Second operand 31 states and 267 transitions. [2023-11-29 04:56:36,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 282 transitions, 4349 flow [2023-11-29 04:56:36,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 282 transitions, 4236 flow, removed 12 selfloop flow, removed 9 redundant places. [2023-11-29 04:56:36,356 INFO L231 Difference]: Finished difference. Result has 277 places, 210 transitions, 3454 flow [2023-11-29 04:56:36,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3424, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=3454, PETRI_PLACES=277, PETRI_TRANSITIONS=210} [2023-11-29 04:56:36,357 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 242 predicate places. [2023-11-29 04:56:36,357 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 210 transitions, 3454 flow [2023-11-29 04:56:36,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:36,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:36,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:36,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 04:56:36,357 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:36,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash -2099350394, now seen corresponding path program 3 times [2023-11-29 04:56:36,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:36,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489051697] [2023-11-29 04:56:36,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:36,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:36,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:36,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:36,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489051697] [2023-11-29 04:56:36,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489051697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:36,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:36,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217629803] [2023-11-29 04:56:36,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:36,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:36,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:36,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:36,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:36,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:36,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 210 transitions, 3454 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:36,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:36,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:36,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:37,425 INFO L124 PetriNetUnfolderBase]: 677/1392 cut-off events. [2023-11-29 04:56:37,425 INFO L125 PetriNetUnfolderBase]: For 15239/15239 co-relation queries the response was YES. [2023-11-29 04:56:37,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8236 conditions, 1392 events. 677/1392 cut-off events. For 15239/15239 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8449 event pairs, 304 based on Foata normal form. 8/1400 useless extension candidates. Maximal degree in co-relation 7911. Up to 1095 conditions per place. [2023-11-29 04:56:37,438 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 192 selfloop transitions, 53 changer transitions 2/247 dead transitions. [2023-11-29 04:56:37,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 247 transitions, 4193 flow [2023-11-29 04:56:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:56:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 04:56:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 150 transitions. [2023-11-29 04:56:37,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2757352941176471 [2023-11-29 04:56:37,439 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 150 transitions. [2023-11-29 04:56:37,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 150 transitions. [2023-11-29 04:56:37,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:37,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 150 transitions. [2023-11-29 04:56:37,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 9.375) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:37,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:37,441 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:37,441 INFO L175 Difference]: Start difference. First operand has 277 places, 210 transitions, 3454 flow. Second operand 16 states and 150 transitions. [2023-11-29 04:56:37,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 247 transitions, 4193 flow [2023-11-29 04:56:37,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 247 transitions, 3781 flow, removed 54 selfloop flow, removed 31 redundant places. [2023-11-29 04:56:37,530 INFO L231 Difference]: Finished difference. Result has 253 places, 214 transitions, 3267 flow [2023-11-29 04:56:37,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3058, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3267, PETRI_PLACES=253, PETRI_TRANSITIONS=214} [2023-11-29 04:56:37,530 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 218 predicate places. [2023-11-29 04:56:37,530 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 214 transitions, 3267 flow [2023-11-29 04:56:37,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:37,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:37,531 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:37,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 04:56:37,531 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:37,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:37,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1954833573, now seen corresponding path program 4 times [2023-11-29 04:56:37,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:37,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475843021] [2023-11-29 04:56:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:37,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:37,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:37,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475843021] [2023-11-29 04:56:37,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475843021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:37,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:37,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:56:37,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210583400] [2023-11-29 04:56:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:37,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:56:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:37,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:56:37,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:56:37,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:37,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 214 transitions, 3267 flow. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:37,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:37,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:37,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:38,956 INFO L124 PetriNetUnfolderBase]: 672/1395 cut-off events. [2023-11-29 04:56:38,956 INFO L125 PetriNetUnfolderBase]: For 10761/10761 co-relation queries the response was YES. [2023-11-29 04:56:38,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7657 conditions, 1395 events. 672/1395 cut-off events. For 10761/10761 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8595 event pairs, 242 based on Foata normal form. 16/1411 useless extension candidates. Maximal degree in co-relation 7419. Up to 770 conditions per place. [2023-11-29 04:56:38,967 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 147 selfloop transitions, 85 changer transitions 36/268 dead transitions. [2023-11-29 04:56:38,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 268 transitions, 4051 flow [2023-11-29 04:56:38,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 04:56:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-29 04:56:38,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 222 transitions. [2023-11-29 04:56:38,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27205882352941174 [2023-11-29 04:56:38,969 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 222 transitions. [2023-11-29 04:56:38,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 222 transitions. [2023-11-29 04:56:38,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:38,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 222 transitions. [2023-11-29 04:56:38,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 9.25) internal successors, (222), 24 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:38,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 34.0) internal successors, (850), 25 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:38,971 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 34.0) internal successors, (850), 25 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:38,971 INFO L175 Difference]: Start difference. First operand has 253 places, 214 transitions, 3267 flow. Second operand 24 states and 222 transitions. [2023-11-29 04:56:38,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 268 transitions, 4051 flow [2023-11-29 04:56:39,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 268 transitions, 3837 flow, removed 2 selfloop flow, removed 16 redundant places. [2023-11-29 04:56:39,011 INFO L231 Difference]: Finished difference. Result has 260 places, 193 transitions, 2901 flow [2023-11-29 04:56:39,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2986, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2901, PETRI_PLACES=260, PETRI_TRANSITIONS=193} [2023-11-29 04:56:39,012 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 225 predicate places. [2023-11-29 04:56:39,012 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 193 transitions, 2901 flow [2023-11-29 04:56:39,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:39,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:39,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:39,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 04:56:39,013 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:39,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:39,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1927859463, now seen corresponding path program 3 times [2023-11-29 04:56:39,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:39,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524368769] [2023-11-29 04:56:39,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:39,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:39,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:39,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524368769] [2023-11-29 04:56:39,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524368769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:39,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:39,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:39,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952557135] [2023-11-29 04:56:39,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:39,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:39,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:39,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:39,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:39,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:39,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 193 transitions, 2901 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:39,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:39,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:39,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:40,123 INFO L124 PetriNetUnfolderBase]: 582/1223 cut-off events. [2023-11-29 04:56:40,123 INFO L125 PetriNetUnfolderBase]: For 8786/8786 co-relation queries the response was YES. [2023-11-29 04:56:40,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6918 conditions, 1223 events. 582/1223 cut-off events. For 8786/8786 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 7327 event pairs, 204 based on Foata normal form. 38/1261 useless extension candidates. Maximal degree in co-relation 6866. Up to 679 conditions per place. [2023-11-29 04:56:40,133 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 151 selfloop transitions, 38 changer transitions 57/246 dead transitions. [2023-11-29 04:56:40,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 246 transitions, 3856 flow [2023-11-29 04:56:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:56:40,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 04:56:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 168 transitions. [2023-11-29 04:56:40,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27450980392156865 [2023-11-29 04:56:40,134 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 168 transitions. [2023-11-29 04:56:40,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 168 transitions. [2023-11-29 04:56:40,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:40,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 168 transitions. [2023-11-29 04:56:40,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:40,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:40,135 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:40,136 INFO L175 Difference]: Start difference. First operand has 260 places, 193 transitions, 2901 flow. Second operand 18 states and 168 transitions. [2023-11-29 04:56:40,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 246 transitions, 3856 flow [2023-11-29 04:56:40,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 246 transitions, 3586 flow, removed 18 selfloop flow, removed 27 redundant places. [2023-11-29 04:56:40,169 INFO L231 Difference]: Finished difference. Result has 242 places, 158 transitions, 2240 flow [2023-11-29 04:56:40,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2633, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2240, PETRI_PLACES=242, PETRI_TRANSITIONS=158} [2023-11-29 04:56:40,170 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 207 predicate places. [2023-11-29 04:56:40,170 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 158 transitions, 2240 flow [2023-11-29 04:56:40,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:40,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:40,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:40,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 04:56:40,170 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:40,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:40,170 INFO L85 PathProgramCache]: Analyzing trace with hash -2099350393, now seen corresponding path program 5 times [2023-11-29 04:56:40,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:40,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41057469] [2023-11-29 04:56:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:40,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:40,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:40,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41057469] [2023-11-29 04:56:40,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41057469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:40,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:40,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:56:40,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824785394] [2023-11-29 04:56:40,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:40,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:56:40,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:56:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:56:40,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:40,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 158 transitions, 2240 flow. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:40,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:40,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:40,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:41,425 INFO L124 PetriNetUnfolderBase]: 455/946 cut-off events. [2023-11-29 04:56:41,425 INFO L125 PetriNetUnfolderBase]: For 5341/5341 co-relation queries the response was YES. [2023-11-29 04:56:41,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5305 conditions, 946 events. 455/946 cut-off events. For 5341/5341 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5187 event pairs, 140 based on Foata normal form. 8/954 useless extension candidates. Maximal degree in co-relation 5256. Up to 604 conditions per place. [2023-11-29 04:56:41,432 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 91 selfloop transitions, 61 changer transitions 32/184 dead transitions. [2023-11-29 04:56:41,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 184 transitions, 2666 flow [2023-11-29 04:56:41,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:56:41,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-29 04:56:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 176 transitions. [2023-11-29 04:56:41,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.23529411764705882 [2023-11-29 04:56:41,434 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 176 transitions. [2023-11-29 04:56:41,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 176 transitions. [2023-11-29 04:56:41,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:41,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 176 transitions. [2023-11-29 04:56:41,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 8.0) internal successors, (176), 22 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:41,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:41,436 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:41,436 INFO L175 Difference]: Start difference. First operand has 242 places, 158 transitions, 2240 flow. Second operand 22 states and 176 transitions. [2023-11-29 04:56:41,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 184 transitions, 2666 flow [2023-11-29 04:56:41,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 184 transitions, 2490 flow, removed 5 selfloop flow, removed 20 redundant places. [2023-11-29 04:56:41,457 INFO L231 Difference]: Finished difference. Result has 222 places, 137 transitions, 2005 flow [2023-11-29 04:56:41,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2045, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2005, PETRI_PLACES=222, PETRI_TRANSITIONS=137} [2023-11-29 04:56:41,458 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 187 predicate places. [2023-11-29 04:56:41,458 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 137 transitions, 2005 flow [2023-11-29 04:56:41,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:41,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:41,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:41,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 04:56:41,458 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:41,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:41,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1954618533, now seen corresponding path program 4 times [2023-11-29 04:56:41,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:41,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422143312] [2023-11-29 04:56:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:41,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:41,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:41,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422143312] [2023-11-29 04:56:41,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422143312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:41,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:41,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:41,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884929129] [2023-11-29 04:56:41,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:41,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:41,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:41,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:41,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:41,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:41,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 137 transitions, 2005 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:41,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:41,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:41,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:42,475 INFO L124 PetriNetUnfolderBase]: 480/1011 cut-off events. [2023-11-29 04:56:42,475 INFO L125 PetriNetUnfolderBase]: For 5533/5533 co-relation queries the response was YES. [2023-11-29 04:56:42,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5499 conditions, 1011 events. 480/1011 cut-off events. For 5533/5533 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5776 event pairs, 154 based on Foata normal form. 28/1039 useless extension candidates. Maximal degree in co-relation 5456. Up to 493 conditions per place. [2023-11-29 04:56:42,483 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 119 selfloop transitions, 63 changer transitions 0/182 dead transitions. [2023-11-29 04:56:42,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 182 transitions, 2739 flow [2023-11-29 04:56:42,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:56:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 04:56:42,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 141 transitions. [2023-11-29 04:56:42,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27647058823529413 [2023-11-29 04:56:42,484 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 141 transitions. [2023-11-29 04:56:42,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 141 transitions. [2023-11-29 04:56:42,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:42,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 141 transitions. [2023-11-29 04:56:42,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 9.4) internal successors, (141), 15 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:42,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:42,485 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:42,485 INFO L175 Difference]: Start difference. First operand has 222 places, 137 transitions, 2005 flow. Second operand 15 states and 141 transitions. [2023-11-29 04:56:42,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 182 transitions, 2739 flow [2023-11-29 04:56:42,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 182 transitions, 2552 flow, removed 5 selfloop flow, removed 19 redundant places. [2023-11-29 04:56:42,510 INFO L231 Difference]: Finished difference. Result has 190 places, 150 transitions, 2220 flow [2023-11-29 04:56:42,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1818, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2220, PETRI_PLACES=190, PETRI_TRANSITIONS=150} [2023-11-29 04:56:42,510 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 155 predicate places. [2023-11-29 04:56:42,510 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 150 transitions, 2220 flow [2023-11-29 04:56:42,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:42,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:42,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:42,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 04:56:42,511 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:42,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:42,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1954618532, now seen corresponding path program 7 times [2023-11-29 04:56:42,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:42,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665377531] [2023-11-29 04:56:42,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:42,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:42,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:42,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665377531] [2023-11-29 04:56:42,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665377531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:42,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:42,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:56:42,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907690372] [2023-11-29 04:56:42,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:42,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:56:42,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:42,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:56:42,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:56:42,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:42,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 150 transitions, 2220 flow. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:42,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:42,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:42,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:43,288 INFO L124 PetriNetUnfolderBase]: 500/1071 cut-off events. [2023-11-29 04:56:43,288 INFO L125 PetriNetUnfolderBase]: For 5639/5639 co-relation queries the response was YES. [2023-11-29 04:56:43,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5686 conditions, 1071 events. 500/1071 cut-off events. For 5639/5639 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6385 event pairs, 76 based on Foata normal form. 60/1131 useless extension candidates. Maximal degree in co-relation 5643. Up to 254 conditions per place. [2023-11-29 04:56:43,296 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 93 selfloop transitions, 42 changer transitions 58/193 dead transitions. [2023-11-29 04:56:43,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 193 transitions, 2777 flow [2023-11-29 04:56:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:56:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 04:56:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 152 transitions. [2023-11-29 04:56:43,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2980392156862745 [2023-11-29 04:56:43,297 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 152 transitions. [2023-11-29 04:56:43,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 152 transitions. [2023-11-29 04:56:43,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:43,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 152 transitions. [2023-11-29 04:56:43,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 10.133333333333333) internal successors, (152), 15 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:43,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:43,300 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:43,300 INFO L175 Difference]: Start difference. First operand has 190 places, 150 transitions, 2220 flow. Second operand 15 states and 152 transitions. [2023-11-29 04:56:43,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 193 transitions, 2777 flow [2023-11-29 04:56:43,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 193 transitions, 2648 flow, removed 13 selfloop flow, removed 9 redundant places. [2023-11-29 04:56:43,325 INFO L231 Difference]: Finished difference. Result has 200 places, 103 transitions, 1471 flow [2023-11-29 04:56:43,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2075, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1471, PETRI_PLACES=200, PETRI_TRANSITIONS=103} [2023-11-29 04:56:43,326 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 165 predicate places. [2023-11-29 04:56:43,326 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 103 transitions, 1471 flow [2023-11-29 04:56:43,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:43,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:43,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:43,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 04:56:43,327 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:43,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:43,327 INFO L85 PathProgramCache]: Analyzing trace with hash 756634758, now seen corresponding path program 8 times [2023-11-29 04:56:43,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:43,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132553123] [2023-11-29 04:56:43,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:43,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:43,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:43,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132553123] [2023-11-29 04:56:43,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132553123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:43,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:43,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:43,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185229598] [2023-11-29 04:56:43,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:43,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:43,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:43,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:43,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:43,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:43,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 103 transitions, 1471 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:43,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:43,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:43,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:44,226 INFO L124 PetriNetUnfolderBase]: 286/635 cut-off events. [2023-11-29 04:56:44,226 INFO L125 PetriNetUnfolderBase]: For 3758/3758 co-relation queries the response was YES. [2023-11-29 04:56:44,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3335 conditions, 635 events. 286/635 cut-off events. For 3758/3758 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3333 event pairs, 89 based on Foata normal form. 22/657 useless extension candidates. Maximal degree in co-relation 3287. Up to 241 conditions per place. [2023-11-29 04:56:44,231 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 90 selfloop transitions, 34 changer transitions 11/135 dead transitions. [2023-11-29 04:56:44,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 135 transitions, 1789 flow [2023-11-29 04:56:44,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:56:44,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 04:56:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 147 transitions. [2023-11-29 04:56:44,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2702205882352941 [2023-11-29 04:56:44,232 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 147 transitions. [2023-11-29 04:56:44,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 147 transitions. [2023-11-29 04:56:44,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:44,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 147 transitions. [2023-11-29 04:56:44,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 9.1875) internal successors, (147), 16 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:44,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:44,233 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:44,233 INFO L175 Difference]: Start difference. First operand has 200 places, 103 transitions, 1471 flow. Second operand 16 states and 147 transitions. [2023-11-29 04:56:44,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 135 transitions, 1789 flow [2023-11-29 04:56:44,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 135 transitions, 1491 flow, removed 24 selfloop flow, removed 31 redundant places. [2023-11-29 04:56:44,247 INFO L231 Difference]: Finished difference. Result has 165 places, 93 transitions, 1120 flow [2023-11-29 04:56:44,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1120, PETRI_PLACES=165, PETRI_TRANSITIONS=93} [2023-11-29 04:56:44,248 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 130 predicate places. [2023-11-29 04:56:44,248 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 93 transitions, 1120 flow [2023-11-29 04:56:44,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:44,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:44,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:44,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 04:56:44,248 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:44,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:44,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1332113651, now seen corresponding path program 1 times [2023-11-29 04:56:44,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:44,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263648080] [2023-11-29 04:56:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:44,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:44,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:44,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263648080] [2023-11-29 04:56:44,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263648080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:44,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:44,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:44,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796204872] [2023-11-29 04:56:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:44,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:44,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:44,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:44,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:44,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:44,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 93 transitions, 1120 flow. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:44,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:44,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:44,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:45,024 INFO L124 PetriNetUnfolderBase]: 244/551 cut-off events. [2023-11-29 04:56:45,024 INFO L125 PetriNetUnfolderBase]: For 1418/1418 co-relation queries the response was YES. [2023-11-29 04:56:45,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2752 conditions, 551 events. 244/551 cut-off events. For 1418/1418 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2776 event pairs, 142 based on Foata normal form. 6/557 useless extension candidates. Maximal degree in co-relation 2720. Up to 381 conditions per place. [2023-11-29 04:56:45,028 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 71 selfloop transitions, 27 changer transitions 22/120 dead transitions. [2023-11-29 04:56:45,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 120 transitions, 1469 flow [2023-11-29 04:56:45,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:56:45,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:56:45,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 119 transitions. [2023-11-29 04:56:45,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2692307692307692 [2023-11-29 04:56:45,030 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 119 transitions. [2023-11-29 04:56:45,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 119 transitions. [2023-11-29 04:56:45,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:45,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 119 transitions. [2023-11-29 04:56:45,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 34.0) internal successors, (476), 14 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,031 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 34.0) internal successors, (476), 14 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,032 INFO L175 Difference]: Start difference. First operand has 165 places, 93 transitions, 1120 flow. Second operand 13 states and 119 transitions. [2023-11-29 04:56:45,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 120 transitions, 1469 flow [2023-11-29 04:56:45,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 120 transitions, 1259 flow, removed 9 selfloop flow, removed 26 redundant places. [2023-11-29 04:56:45,039 INFO L231 Difference]: Finished difference. Result has 147 places, 83 transitions, 841 flow [2023-11-29 04:56:45,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=841, PETRI_PLACES=147, PETRI_TRANSITIONS=83} [2023-11-29 04:56:45,040 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 112 predicate places. [2023-11-29 04:56:45,040 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 83 transitions, 841 flow [2023-11-29 04:56:45,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:45,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:45,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 04:56:45,040 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:45,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:45,041 INFO L85 PathProgramCache]: Analyzing trace with hash 414166451, now seen corresponding path program 2 times [2023-11-29 04:56:45,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:45,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416303674] [2023-11-29 04:56:45,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:45,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:45,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:45,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:45,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416303674] [2023-11-29 04:56:45,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416303674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:45,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:45,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:45,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220419492] [2023-11-29 04:56:45,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:45,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:45,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:45,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:45,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:45,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:45,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 83 transitions, 841 flow. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:45,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:45,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:45,881 INFO L124 PetriNetUnfolderBase]: 212/483 cut-off events. [2023-11-29 04:56:45,882 INFO L125 PetriNetUnfolderBase]: For 467/467 co-relation queries the response was YES. [2023-11-29 04:56:45,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2089 conditions, 483 events. 212/483 cut-off events. For 467/467 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2318 event pairs, 85 based on Foata normal form. 6/489 useless extension candidates. Maximal degree in co-relation 2070. Up to 314 conditions per place. [2023-11-29 04:56:45,884 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 39 selfloop transitions, 44 changer transitions 21/104 dead transitions. [2023-11-29 04:56:45,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 104 transitions, 1084 flow [2023-11-29 04:56:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:56:45,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 04:56:45,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 132 transitions. [2023-11-29 04:56:45,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.22837370242214533 [2023-11-29 04:56:45,886 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 132 transitions. [2023-11-29 04:56:45,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 132 transitions. [2023-11-29 04:56:45,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:45,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 132 transitions. [2023-11-29 04:56:45,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 7.764705882352941) internal successors, (132), 17 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 34.0) internal successors, (612), 18 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,887 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 34.0) internal successors, (612), 18 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,887 INFO L175 Difference]: Start difference. First operand has 147 places, 83 transitions, 841 flow. Second operand 17 states and 132 transitions. [2023-11-29 04:56:45,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 104 transitions, 1084 flow [2023-11-29 04:56:45,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 104 transitions, 1009 flow, removed 1 selfloop flow, removed 13 redundant places. [2023-11-29 04:56:45,891 INFO L231 Difference]: Finished difference. Result has 142 places, 76 transitions, 780 flow [2023-11-29 04:56:45,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=780, PETRI_PLACES=142, PETRI_TRANSITIONS=76} [2023-11-29 04:56:45,891 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 107 predicate places. [2023-11-29 04:56:45,891 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 76 transitions, 780 flow [2023-11-29 04:56:45,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:45,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:45,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:45,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 04:56:45,892 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:45,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:45,892 INFO L85 PathProgramCache]: Analyzing trace with hash -326948689, now seen corresponding path program 3 times [2023-11-29 04:56:45,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:45,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662151635] [2023-11-29 04:56:45,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:45,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:46,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662151635] [2023-11-29 04:56:46,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662151635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:46,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:46,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:46,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633806639] [2023-11-29 04:56:46,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:46,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:46,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:46,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:46,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:46,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:46,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 76 transitions, 780 flow. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:46,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:46,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:46,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:46,661 INFO L124 PetriNetUnfolderBase]: 185/420 cut-off events. [2023-11-29 04:56:46,661 INFO L125 PetriNetUnfolderBase]: For 392/392 co-relation queries the response was YES. [2023-11-29 04:56:46,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 420 events. 185/420 cut-off events. For 392/392 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1919 event pairs, 94 based on Foata normal form. 6/426 useless extension candidates. Maximal degree in co-relation 1825. Up to 244 conditions per place. [2023-11-29 04:56:46,663 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 53 selfloop transitions, 22 changer transitions 27/102 dead transitions. [2023-11-29 04:56:46,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 102 transitions, 1033 flow [2023-11-29 04:56:46,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:56:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 04:56:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 133 transitions. [2023-11-29 04:56:46,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2607843137254902 [2023-11-29 04:56:46,664 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 133 transitions. [2023-11-29 04:56:46,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 133 transitions. [2023-11-29 04:56:46,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:46,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 133 transitions. [2023-11-29 04:56:46,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 15 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:46,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:46,666 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:46,666 INFO L175 Difference]: Start difference. First operand has 142 places, 76 transitions, 780 flow. Second operand 15 states and 133 transitions. [2023-11-29 04:56:46,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 102 transitions, 1033 flow [2023-11-29 04:56:46,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 102 transitions, 898 flow, removed 2 selfloop flow, removed 17 redundant places. [2023-11-29 04:56:46,671 INFO L231 Difference]: Finished difference. Result has 125 places, 59 transitions, 512 flow [2023-11-29 04:56:46,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=512, PETRI_PLACES=125, PETRI_TRANSITIONS=59} [2023-11-29 04:56:46,671 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 90 predicate places. [2023-11-29 04:56:46,672 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 59 transitions, 512 flow [2023-11-29 04:56:46,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:46,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:46,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:46,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 04:56:46,672 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:46,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:46,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1244895889, now seen corresponding path program 4 times [2023-11-29 04:56:46,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:46,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94826349] [2023-11-29 04:56:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:46,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:47,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:47,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:47,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94826349] [2023-11-29 04:56:47,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94826349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:47,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:47,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:47,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449853934] [2023-11-29 04:56:47,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:47,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:47,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:47,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:47,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:47,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:47,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 59 transitions, 512 flow. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:47,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:47,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:47,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:47,547 INFO L124 PetriNetUnfolderBase]: 147/342 cut-off events. [2023-11-29 04:56:47,547 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2023-11-29 04:56:47,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1372 conditions, 342 events. 147/342 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1470 event pairs, 59 based on Foata normal form. 6/348 useless extension candidates. Maximal degree in co-relation 1358. Up to 206 conditions per place. [2023-11-29 04:56:47,548 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 28 selfloop transitions, 18 changer transitions 35/81 dead transitions. [2023-11-29 04:56:47,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 81 transitions, 715 flow [2023-11-29 04:56:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:56:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 04:56:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 135 transitions. [2023-11-29 04:56:47,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.23356401384083045 [2023-11-29 04:56:47,550 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 135 transitions. [2023-11-29 04:56:47,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 135 transitions. [2023-11-29 04:56:47,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:47,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 135 transitions. [2023-11-29 04:56:47,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 7.9411764705882355) internal successors, (135), 17 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:47,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 34.0) internal successors, (612), 18 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:47,551 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 34.0) internal successors, (612), 18 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:47,551 INFO L175 Difference]: Start difference. First operand has 125 places, 59 transitions, 512 flow. Second operand 17 states and 135 transitions. [2023-11-29 04:56:47,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 81 transitions, 715 flow [2023-11-29 04:56:47,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 81 transitions, 652 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-29 04:56:47,555 INFO L231 Difference]: Finished difference. Result has 112 places, 41 transitions, 358 flow [2023-11-29 04:56:47,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=358, PETRI_PLACES=112, PETRI_TRANSITIONS=41} [2023-11-29 04:56:47,555 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 77 predicate places. [2023-11-29 04:56:47,555 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 41 transitions, 358 flow [2023-11-29 04:56:47,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:47,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:47,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:47,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 04:56:47,556 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:47,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:47,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1232334063, now seen corresponding path program 5 times [2023-11-29 04:56:47,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:47,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109056084] [2023-11-29 04:56:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:47,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:47,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:47,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109056084] [2023-11-29 04:56:47,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109056084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:47,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:47,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:47,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46926655] [2023-11-29 04:56:47,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:47,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:47,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:47,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:47,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:47,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:47,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 41 transitions, 358 flow. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:47,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:47,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:47,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:48,280 INFO L124 PetriNetUnfolderBase]: 102/237 cut-off events. [2023-11-29 04:56:48,280 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2023-11-29 04:56:48,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 237 events. 102/237 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 928 event pairs, 0 based on Foata normal form. 12/249 useless extension candidates. Maximal degree in co-relation 918. Up to 96 conditions per place. [2023-11-29 04:56:48,282 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 22 selfloop transitions, 15 changer transitions 23/60 dead transitions. [2023-11-29 04:56:48,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 60 transitions, 513 flow [2023-11-29 04:56:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:56:48,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 04:56:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 117 transitions. [2023-11-29 04:56:48,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.21507352941176472 [2023-11-29 04:56:48,283 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 117 transitions. [2023-11-29 04:56:48,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 117 transitions. [2023-11-29 04:56:48,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:48,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 117 transitions. [2023-11-29 04:56:48,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,284 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,284 INFO L175 Difference]: Start difference. First operand has 112 places, 41 transitions, 358 flow. Second operand 16 states and 117 transitions. [2023-11-29 04:56:48,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 60 transitions, 513 flow [2023-11-29 04:56:48,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 60 transitions, 445 flow, removed 0 selfloop flow, removed 16 redundant places. [2023-11-29 04:56:48,286 INFO L231 Difference]: Finished difference. Result has 87 places, 28 transitions, 181 flow [2023-11-29 04:56:48,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=181, PETRI_PLACES=87, PETRI_TRANSITIONS=28} [2023-11-29 04:56:48,286 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2023-11-29 04:56:48,286 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 28 transitions, 181 flow [2023-11-29 04:56:48,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:56:48,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:48,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 04:56:48,287 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 04:56:48,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:48,287 INFO L85 PathProgramCache]: Analyzing trace with hash 314386863, now seen corresponding path program 6 times [2023-11-29 04:56:48,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:48,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140391492] [2023-11-29 04:56:48,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:48,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:48,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:48,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140391492] [2023-11-29 04:56:48,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140391492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:48,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:48,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:56:48,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904902217] [2023-11-29 04:56:48,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:48,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:56:48,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:48,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:56:48,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:56:48,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-29 04:56:48,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 28 transitions, 181 flow. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:56:48,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-29 04:56:48,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:56:48,924 INFO L124 PetriNetUnfolderBase]: 50/125 cut-off events. [2023-11-29 04:56:48,924 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-11-29 04:56:48,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 125 events. 50/125 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 375 event pairs, 0 based on Foata normal form. 12/137 useless extension candidates. Maximal degree in co-relation 425. Up to 48 conditions per place. [2023-11-29 04:56:48,925 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2023-11-29 04:56:48,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 40 transitions, 279 flow [2023-11-29 04:56:48,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:56:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 04:56:48,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 90 transitions. [2023-11-29 04:56:48,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.20361990950226244 [2023-11-29 04:56:48,926 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 90 transitions. [2023-11-29 04:56:48,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 90 transitions. [2023-11-29 04:56:48,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:56:48,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 90 transitions. [2023-11-29 04:56:48,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 34.0) internal successors, (476), 14 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,927 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 34.0) internal successors, (476), 14 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,927 INFO L175 Difference]: Start difference. First operand has 87 places, 28 transitions, 181 flow. Second operand 13 states and 90 transitions. [2023-11-29 04:56:48,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 40 transitions, 279 flow [2023-11-29 04:56:48,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 40 transitions, 219 flow, removed 1 selfloop flow, removed 18 redundant places. [2023-11-29 04:56:48,928 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2023-11-29 04:56:48,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2023-11-29 04:56:48,928 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2023-11-29 04:56:48,929 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2023-11-29 04:56:48,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:48,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-11-29 04:56:48,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-11-29 04:56:48,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-29 04:56:48,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-29 04:56:48,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-29 04:56:48,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-29 04:56:48,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-29 04:56:48,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-29 04:56:48,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 04:56:48,932 INFO L445 BasicCegarLoop]: Path program histogram: [8, 6, 5, 4, 4, 3, 3, 1, 1, 1] [2023-11-29 04:56:48,938 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 04:56:48,938 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:56:48,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:56:48 BasicIcfg [2023-11-29 04:56:48,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:56:48,943 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:56:48,943 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:56:48,943 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:56:48,944 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:55:58" (3/4) ... [2023-11-29 04:56:48,945 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:56:48,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-11-29 04:56:48,954 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 104 nodes and edges [2023-11-29 04:56:48,955 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2023-11-29 04:56:48,955 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-29 04:56:48,956 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:56:49,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:56:49,046 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:56:49,046 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:56:49,047 INFO L158 Benchmark]: Toolchain (without parser) took 52487.35ms. Allocated memory was 178.3MB in the beginning and 901.8MB in the end (delta: 723.5MB). Free memory was 148.7MB in the beginning and 566.1MB in the end (delta: -417.4MB). Peak memory consumption was 307.0MB. Max. memory is 16.1GB. [2023-11-29 04:56:49,047 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 102.0MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:56:49,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.49ms. Allocated memory is still 178.3MB. Free memory was 148.7MB in the beginning and 114.2MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-29 04:56:49,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.70ms. Allocated memory is still 178.3MB. Free memory was 114.2MB in the beginning and 111.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:56:49,049 INFO L158 Benchmark]: Boogie Preprocessor took 79.08ms. Allocated memory is still 178.3MB. Free memory was 111.9MB in the beginning and 146.9MB in the end (delta: -35.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 04:56:49,049 INFO L158 Benchmark]: RCFGBuilder took 732.64ms. Allocated memory is still 178.3MB. Free memory was 146.9MB in the beginning and 99.9MB in the end (delta: 47.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-29 04:56:49,050 INFO L158 Benchmark]: TraceAbstraction took 50919.50ms. Allocated memory was 178.3MB in the beginning and 901.8MB in the end (delta: 723.5MB). Free memory was 98.6MB in the beginning and 572.4MB in the end (delta: -473.8MB). Peak memory consumption was 251.7MB. Max. memory is 16.1GB. [2023-11-29 04:56:49,050 INFO L158 Benchmark]: Witness Printer took 102.98ms. Allocated memory is still 901.8MB. Free memory was 572.4MB in the beginning and 566.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 04:56:49,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 102.0MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.49ms. Allocated memory is still 178.3MB. Free memory was 148.7MB in the beginning and 114.2MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.70ms. Allocated memory is still 178.3MB. Free memory was 114.2MB in the beginning and 111.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.08ms. Allocated memory is still 178.3MB. Free memory was 111.9MB in the beginning and 146.9MB in the end (delta: -35.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 732.64ms. Allocated memory is still 178.3MB. Free memory was 146.9MB in the beginning and 99.9MB in the end (delta: 47.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 50919.50ms. Allocated memory was 178.3MB in the beginning and 901.8MB in the end (delta: 723.5MB). Free memory was 98.6MB in the beginning and 572.4MB in the end (delta: -473.8MB). Peak memory consumption was 251.7MB. Max. memory is 16.1GB. * Witness Printer took 102.98ms. Allocated memory is still 901.8MB. Free memory was 572.4MB in the beginning and 566.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3914]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 3914]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 42 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 50.8s, OverallIterations: 36, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 34.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2951 SdHoareTripleChecker+Valid, 11.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2950 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 393 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13797 IncrementalHoareTripleChecker+Invalid, 14190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 393 mSolverCounterUnsat, 1 mSDtfsCounter, 13797 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 755 GetRequests, 79 SyntacticMatches, 8 SemanticMatches, 668 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2392 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5141occurred in iteration=13, InterpolantAutomatonStates: 630, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 456 ConstructedInterpolants, 0 QuantifiedInterpolants, 5044 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 04:56:49,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a67ebd-7a3b-4023-893e-fcbc38d97083/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE