./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.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_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/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_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/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_f19a603b-3f2e-4cd4-a599-730deeaa354a/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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:40:07,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:40:07,229 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:40:07,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:40:07,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:40:07,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:40:07,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:40:07,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:40:07,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:40:07,258 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:40:07,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:40:07,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:40:07,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:40:07,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:40:07,261 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:40:07,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:40:07,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:40:07,262 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:40:07,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:40:07,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:40:07,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:40:07,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:40:07,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:40:07,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:40:07,266 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:40:07,266 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:40:07,267 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:40:07,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:40:07,267 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:40:07,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:40:07,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:40:07,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:40:07,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:40:07,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:40:07,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:40:07,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:40:07,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:40:07,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:40:07,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:40:07,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:40:07,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:40:07,271 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:40:07,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:40:07,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:40:07,271 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_f19a603b-3f2e-4cd4-a599-730deeaa354a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2023-11-29 06:40:07,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:40:07,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:40:07,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:40:07,508 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:40:07,508 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:40:07,509 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-29 06:40:10,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:40:10,523 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:40:10,523 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-29 06:40:10,541 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/data/4daef647f/90c4e5cc1852417191aa9296c10de9f0/FLAG987e2cbe6 [2023-11-29 06:40:10,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/data/4daef647f/90c4e5cc1852417191aa9296c10de9f0 [2023-11-29 06:40:10,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:40:10,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:40:10,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:40:10,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:40:10,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:40:10,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:40:10" (1/1) ... [2023-11-29 06:40:10,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28399428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:10, skipping insertion in model container [2023-11-29 06:40:10,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:40:10" (1/1) ... [2023-11-29 06:40:10,618 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:40:11,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:40:11,013 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:40:11,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:40:11,111 WARN L675 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:40:11,119 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:40:11,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11 WrapperNode [2023-11-29 06:40:11,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:40:11,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:40:11,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:40:11,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:40:11,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,179 INFO L138 Inliner]: procedures = 272, calls = 54, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 123 [2023-11-29 06:40:11,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:40:11,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:40:11,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:40:11,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:40:11,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,216 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 5, 5, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0, 0, 0]. The 3 writes are split as follows [0, 0, 0, 1, 1, 1]. [2023-11-29 06:40:11,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:40:11,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:40:11,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:40:11,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:40:11,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (1/1) ... [2023-11-29 06:40:11,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:40:11,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:11,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:40:11,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:40:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-29 06:40:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:40:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2023-11-29 06:40:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2023-11-29 06:40:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:40:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 06:40:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:40:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:40:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:40:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:40:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 06:40:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 06:40:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 06:40:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:40:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2023-11-29 06:40:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2023-11-29 06:40:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure process [2023-11-29 06:40:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2023-11-29 06:40:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:40:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:40:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:40:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:40:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 06:40:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 06:40:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:40:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:40:11,318 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 06:40:11,592 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:40:11,595 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:40:11,837 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:40:12,009 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:40:12,010 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 06:40:12,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:12 BoogieIcfgContainer [2023-11-29 06:40:12,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:40:12,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:40:12,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:40:12,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:40:12,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:40:10" (1/3) ... [2023-11-29 06:40:12,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cea1b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:40:12, skipping insertion in model container [2023-11-29 06:40:12,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:11" (2/3) ... [2023-11-29 06:40:12,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cea1b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:40:12, skipping insertion in model container [2023-11-29 06:40:12,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:12" (3/3) ... [2023-11-29 06:40:12,019 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2023-11-29 06:40:12,029 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:40:12,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:40:12,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-29 06:40:12,040 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:40:12,096 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 06:40:12,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 162 flow [2023-11-29 06:40:12,168 INFO L124 PetriNetUnfolderBase]: 6/72 cut-off events. [2023-11-29 06:40:12,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:40:12,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 6/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 194 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-11-29 06:40:12,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 75 transitions, 162 flow [2023-11-29 06:40:12,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 72 transitions, 153 flow [2023-11-29 06:40:12,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:40:12,196 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;@7ab3642a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:40:12,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-29 06:40:12,206 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:40:12,206 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-29 06:40:12,206 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:40:12,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:40:12,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:12,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-29 06:40:12,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:12,213 INFO L85 PathProgramCache]: Analyzing trace with hash 611682428, now seen corresponding path program 1 times [2023-11-29 06:40:12,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:12,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208631660] [2023-11-29 06:40:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:12,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:12,656 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 06:40:12,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:12,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208631660] [2023-11-29 06:40:12,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208631660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:12,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:12,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:40:12,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086710588] [2023-11-29 06:40:12,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:12,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:40:12,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:12,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:40:12,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:40:12,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 75 [2023-11-29 06:40:12,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 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 06:40:12,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:40:12,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 75 [2023-11-29 06:40:12,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:40:17,628 INFO L124 PetriNetUnfolderBase]: 36905/58177 cut-off events. [2023-11-29 06:40:17,629 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2023-11-29 06:40:17,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107036 conditions, 58177 events. 36905/58177 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1691. Compared 469874 event pairs, 22477 based on Foata normal form. 5036/59641 useless extension candidates. Maximal degree in co-relation 107025. Up to 31306 conditions per place. [2023-11-29 06:40:18,111 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 109 selfloop transitions, 3 changer transitions 0/139 dead transitions. [2023-11-29 06:40:18,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 139 transitions, 523 flow [2023-11-29 06:40:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:40:18,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:40:18,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2023-11-29 06:40:18,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8033333333333333 [2023-11-29 06:40:18,123 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 241 transitions. [2023-11-29 06:40:18,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 241 transitions. [2023-11-29 06:40:18,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:40:18,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 241 transitions. [2023-11-29 06:40:18,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 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 06:40:18,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 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 06:40:18,134 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 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 06:40:18,135 INFO L175 Difference]: Start difference. First operand has 76 places, 72 transitions, 153 flow. Second operand 4 states and 241 transitions. [2023-11-29 06:40:18,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 139 transitions, 523 flow [2023-11-29 06:40:18,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 139 transitions, 516 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 06:40:18,146 INFO L231 Difference]: Finished difference. Result has 76 places, 72 transitions, 170 flow [2023-11-29 06:40:18,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=76, PETRI_TRANSITIONS=72} [2023-11-29 06:40:18,151 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 0 predicate places. [2023-11-29 06:40:18,151 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 170 flow [2023-11-29 06:40:18,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 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 06:40:18,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:40:18,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:18,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:40:18,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-29 06:40:18,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:18,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1328422357, now seen corresponding path program 1 times [2023-11-29 06:40:18,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:18,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464632026] [2023-11-29 06:40:18,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:18,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:18,272 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 06:40:18,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:18,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464632026] [2023-11-29 06:40:18,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464632026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:18,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:18,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:40:18,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213588121] [2023-11-29 06:40:18,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:18,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:40:18,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:18,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:40:18,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:40:18,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 75 [2023-11-29 06:40:18,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 06:40:18,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:40:18,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 75 [2023-11-29 06:40:18,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:40:26,324 INFO L124 PetriNetUnfolderBase]: 73936/115827 cut-off events. [2023-11-29 06:40:26,324 INFO L125 PetriNetUnfolderBase]: For 17403/19799 co-relation queries the response was YES. [2023-11-29 06:40:26,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231075 conditions, 115827 events. 73936/115827 cut-off events. For 17403/19799 co-relation queries the response was YES. Maximal size of possible extension queue 2351. Compared 967758 event pairs, 23051 based on Foata normal form. 780/109749 useless extension candidates. Maximal degree in co-relation 231064. Up to 44402 conditions per place. [2023-11-29 06:40:27,145 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 134 selfloop transitions, 9 changer transitions 0/169 dead transitions. [2023-11-29 06:40:27,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 169 transitions, 704 flow [2023-11-29 06:40:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:40:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 06:40:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 282 transitions. [2023-11-29 06:40:27,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.752 [2023-11-29 06:40:27,149 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 282 transitions. [2023-11-29 06:40:27,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 282 transitions. [2023-11-29 06:40:27,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:40:27,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 282 transitions. [2023-11-29 06:40:27,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 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 06:40:27,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 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 06:40:27,155 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 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 06:40:27,155 INFO L175 Difference]: Start difference. First operand has 76 places, 72 transitions, 170 flow. Second operand 5 states and 282 transitions. [2023-11-29 06:40:27,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 169 transitions, 704 flow [2023-11-29 06:40:27,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 169 transitions, 696 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:40:27,161 INFO L231 Difference]: Finished difference. Result has 83 places, 80 transitions, 236 flow [2023-11-29 06:40:27,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=83, PETRI_TRANSITIONS=80} [2023-11-29 06:40:27,162 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 7 predicate places. [2023-11-29 06:40:27,163 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 80 transitions, 236 flow [2023-11-29 06:40:27,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 06:40:27,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:40:27,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:27,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:40:27,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-29 06:40:27,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:27,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1768580431, now seen corresponding path program 1 times [2023-11-29 06:40:27,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:27,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595050203] [2023-11-29 06:40:27,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:27,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:27,297 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 06:40:27,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:27,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595050203] [2023-11-29 06:40:27,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595050203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:27,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:27,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:40:27,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753263289] [2023-11-29 06:40:27,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:27,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:40:27,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:27,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:40:27,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:40:27,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 75 [2023-11-29 06:40:27,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 06:40:27,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:40:27,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 75 [2023-11-29 06:40:27,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:40:38,860 INFO L124 PetriNetUnfolderBase]: 97031/151515 cut-off events. [2023-11-29 06:40:38,860 INFO L125 PetriNetUnfolderBase]: For 56211/59549 co-relation queries the response was YES. [2023-11-29 06:40:39,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328838 conditions, 151515 events. 97031/151515 cut-off events. For 56211/59549 co-relation queries the response was YES. Maximal size of possible extension queue 3089. Compared 1309019 event pairs, 25789 based on Foata normal form. 2145/147475 useless extension candidates. Maximal degree in co-relation 328822. Up to 58640 conditions per place. [2023-11-29 06:40:39,997 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 136 selfloop transitions, 15 changer transitions 0/177 dead transitions. [2023-11-29 06:40:39,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 177 transitions, 816 flow [2023-11-29 06:40:39,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:40:39,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 06:40:40,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 281 transitions. [2023-11-29 06:40:40,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7493333333333333 [2023-11-29 06:40:40,000 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 281 transitions. [2023-11-29 06:40:40,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 281 transitions. [2023-11-29 06:40:40,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:40:40,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 281 transitions. [2023-11-29 06:40:40,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 56.2) internal successors, (281), 5 states have internal predecessors, (281), 0 states have call successors, (0), 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 06:40:40,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 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 06:40:40,005 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 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 06:40:40,005 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 236 flow. Second operand 5 states and 281 transitions. [2023-11-29 06:40:40,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 177 transitions, 816 flow [2023-11-29 06:40:40,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 177 transitions, 816 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:40:40,268 INFO L231 Difference]: Finished difference. Result has 91 places, 89 transitions, 362 flow [2023-11-29 06:40:40,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=91, PETRI_TRANSITIONS=89} [2023-11-29 06:40:40,269 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 15 predicate places. [2023-11-29 06:40:40,269 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 89 transitions, 362 flow [2023-11-29 06:40:40,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 06:40:40,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:40:40,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:40,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:40:40,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-29 06:40:40,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:40,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1416336143, now seen corresponding path program 1 times [2023-11-29 06:40:40,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:40,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260054844] [2023-11-29 06:40:40,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:40,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:40,433 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 06:40:40,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:40,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260054844] [2023-11-29 06:40:40,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260054844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:40,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:40,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:40:40,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802815004] [2023-11-29 06:40:40,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:40,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:40:40,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:40,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:40:40,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:40:40,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 75 [2023-11-29 06:40:40,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 89 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 06:40:40,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:40:40,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 75 [2023-11-29 06:40:40,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:40:54,204 INFO L124 PetriNetUnfolderBase]: 110351/166209 cut-off events. [2023-11-29 06:40:54,205 INFO L125 PetriNetUnfolderBase]: For 136015/140265 co-relation queries the response was YES. [2023-11-29 06:40:54,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393298 conditions, 166209 events. 110351/166209 cut-off events. For 136015/140265 co-relation queries the response was YES. Maximal size of possible extension queue 3167. Compared 1363913 event pairs, 20569 based on Foata normal form. 1367/161650 useless extension candidates. Maximal degree in co-relation 393276. Up to 62490 conditions per place. [2023-11-29 06:40:55,498 INFO L140 encePairwiseOnDemand]: 65/75 looper letters, 249 selfloop transitions, 21 changer transitions 0/294 dead transitions. [2023-11-29 06:40:55,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 294 transitions, 1454 flow [2023-11-29 06:40:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:40:55,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 06:40:55,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 491 transitions. [2023-11-29 06:40:55,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7274074074074074 [2023-11-29 06:40:55,501 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 491 transitions. [2023-11-29 06:40:55,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 491 transitions. [2023-11-29 06:40:55,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:40:55,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 491 transitions. [2023-11-29 06:40:55,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.55555555555556) internal successors, (491), 9 states have internal predecessors, (491), 0 states have call successors, (0), 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 06:40:55,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 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 06:40:55,507 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 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 06:40:55,507 INFO L175 Difference]: Start difference. First operand has 91 places, 89 transitions, 362 flow. Second operand 9 states and 491 transitions. [2023-11-29 06:40:55,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 294 transitions, 1454 flow [2023-11-29 06:40:56,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 294 transitions, 1446 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-11-29 06:40:56,463 INFO L231 Difference]: Finished difference. Result has 104 places, 96 transitions, 478 flow [2023-11-29 06:40:56,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=478, PETRI_PLACES=104, PETRI_TRANSITIONS=96} [2023-11-29 06:40:56,465 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 28 predicate places. [2023-11-29 06:40:56,465 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 96 transitions, 478 flow [2023-11-29 06:40:56,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 06:40:56,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:40:56,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:56,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:40:56,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-29 06:40:56,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:56,466 INFO L85 PathProgramCache]: Analyzing trace with hash 956748018, now seen corresponding path program 1 times [2023-11-29 06:40:56,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:56,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176947261] [2023-11-29 06:40:56,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:56,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:56,645 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 06:40:56,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:56,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176947261] [2023-11-29 06:40:56,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176947261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:56,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:56,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:40:56,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070919030] [2023-11-29 06:40:56,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:56,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:40:56,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:56,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:40:56,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:40:56,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 75 [2023-11-29 06:40:56,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 96 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 06:40:56,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:40:56,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 75 [2023-11-29 06:40:56,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:41:13,914 INFO L124 PetriNetUnfolderBase]: 126696/191446 cut-off events. [2023-11-29 06:41:13,914 INFO L125 PetriNetUnfolderBase]: For 250217/255059 co-relation queries the response was YES. [2023-11-29 06:41:14,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484115 conditions, 191446 events. 126696/191446 cut-off events. For 250217/255059 co-relation queries the response was YES. Maximal size of possible extension queue 3488. Compared 1589782 event pairs, 27317 based on Foata normal form. 2732/190328 useless extension candidates. Maximal degree in co-relation 484086. Up to 54984 conditions per place. [2023-11-29 06:41:15,540 INFO L140 encePairwiseOnDemand]: 64/75 looper letters, 245 selfloop transitions, 31 changer transitions 0/300 dead transitions. [2023-11-29 06:41:15,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 300 transitions, 1630 flow [2023-11-29 06:41:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:41:15,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 06:41:15,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 492 transitions. [2023-11-29 06:41:15,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7288888888888889 [2023-11-29 06:41:15,543 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 492 transitions. [2023-11-29 06:41:15,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 492 transitions. [2023-11-29 06:41:15,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:41:15,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 492 transitions. [2023-11-29 06:41:15,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.666666666666664) internal successors, (492), 9 states have internal predecessors, (492), 0 states have call successors, (0), 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 06:41:15,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 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 06:41:15,548 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 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 06:41:15,549 INFO L175 Difference]: Start difference. First operand has 104 places, 96 transitions, 478 flow. Second operand 9 states and 492 transitions. [2023-11-29 06:41:15,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 300 transitions, 1630 flow [2023-11-29 06:41:21,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 300 transitions, 1566 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-11-29 06:41:21,771 INFO L231 Difference]: Finished difference. Result has 111 places, 105 transitions, 618 flow [2023-11-29 06:41:21,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=618, PETRI_PLACES=111, PETRI_TRANSITIONS=105} [2023-11-29 06:41:21,772 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 35 predicate places. [2023-11-29 06:41:21,772 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 105 transitions, 618 flow [2023-11-29 06:41:21,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 06:41:21,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:41:21,772 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:21,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:41:21,773 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-29 06:41:21,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:21,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1128116567, now seen corresponding path program 1 times [2023-11-29 06:41:21,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:21,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962545053] [2023-11-29 06:41:21,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:21,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:21,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:21,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962545053] [2023-11-29 06:41:21,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962545053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:21,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947652128] [2023-11-29 06:41:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:21,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:21,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:21,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:41:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:22,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:41:22,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:22,139 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:22,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:22,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947652128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:22,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:22,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-29 06:41:22,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218170378] [2023-11-29 06:41:22,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:22,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:41:22,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:22,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:41:22,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:41:22,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 75 [2023-11-29 06:41:22,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 105 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 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 06:41:22,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:41:22,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 75 [2023-11-29 06:41:22,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:41:38,288 INFO L124 PetriNetUnfolderBase]: 112936/172798 cut-off events. [2023-11-29 06:41:38,288 INFO L125 PetriNetUnfolderBase]: For 282997/287998 co-relation queries the response was YES. [2023-11-29 06:41:39,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455682 conditions, 172798 events. 112936/172798 cut-off events. For 282997/287998 co-relation queries the response was YES. Maximal size of possible extension queue 2967. Compared 1467552 event pairs, 22630 based on Foata normal form. 3951/171625 useless extension candidates. Maximal degree in co-relation 455650. Up to 65692 conditions per place. [2023-11-29 06:41:40,063 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 264 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2023-11-29 06:41:40,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 303 transitions, 2310 flow [2023-11-29 06:41:40,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:41:40,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:41:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 356 transitions. [2023-11-29 06:41:40,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7911111111111111 [2023-11-29 06:41:40,065 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 356 transitions. [2023-11-29 06:41:40,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 356 transitions. [2023-11-29 06:41:40,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:41:40,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 356 transitions. [2023-11-29 06:41:40,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 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 06:41:40,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 0 states have call successors, (0), 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 06:41:40,068 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 0 states have call successors, (0), 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 06:41:40,069 INFO L175 Difference]: Start difference. First operand has 111 places, 105 transitions, 618 flow. Second operand 6 states and 356 transitions. [2023-11-29 06:41:40,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 303 transitions, 2310 flow [2023-11-29 06:41:45,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 303 transitions, 2184 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-11-29 06:41:45,062 INFO L231 Difference]: Finished difference. Result has 111 places, 104 transitions, 580 flow [2023-11-29 06:41:45,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=111, PETRI_TRANSITIONS=104} [2023-11-29 06:41:45,063 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 35 predicate places. [2023-11-29 06:41:45,063 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 104 transitions, 580 flow [2023-11-29 06:41:45,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 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 06:41:45,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:41:45,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:45,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:41:45,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f19a603b-3f2e-4cd4-a599-730deeaa354a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 06:41:45,265 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-29 06:41:45,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:45,265 INFO L85 PathProgramCache]: Analyzing trace with hash -329827672, now seen corresponding path program 1 times [2023-11-29 06:41:45,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:45,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154925829] [2023-11-29 06:41:45,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:45,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:45,402 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 06:41:45,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:45,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154925829] [2023-11-29 06:41:45,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154925829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:45,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:45,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:41:45,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485212730] [2023-11-29 06:41:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:45,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:45,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:45,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:41:45,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 75 [2023-11-29 06:41:45,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 104 transitions, 580 flow. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 06:41:45,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:41:45,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 75 [2023-11-29 06:41:45,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand