./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:40:08,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:40:09,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:40:09,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:40:09,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:40:09,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:40:09,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:40:09,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:40:09,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:40:09,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:40:09,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:40:09,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:40:09,095 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:40:09,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:40:09,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:40:09,098 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:40:09,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:40:09,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:40:09,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:40:09,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:40:09,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:40:09,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:40:09,101 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:40:09,102 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:40:09,102 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:40:09,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:40:09,103 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:40:09,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:40:09,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:40:09,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:40:09,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:40:09,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:40:09,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:40:09,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:40:09,107 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:40:09,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:40:09,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:40:09,108 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:40:09,108 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:40:09,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:40:09,109 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:40:09,109 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_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd [2023-11-06 22:40:09,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:40:09,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:40:09,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:40:09,474 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:40:09,474 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:40:09,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2023-11-06 22:40:12,731 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:40:13,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:40:13,058 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2023-11-06 22:40:13,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/data/45d750670/d260501a871a4eaca2caa9edc3b9410a/FLAGef9deebfb [2023-11-06 22:40:13,104 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/data/45d750670/d260501a871a4eaca2caa9edc3b9410a [2023-11-06 22:40:13,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:40:13,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:40:13,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:40:13,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:40:13,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:40:13,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2639bb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13, skipping insertion in model container [2023-11-06 22:40:13,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,187 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:40:13,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:40:13,550 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:40:13,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:40:13,648 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:40:13,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13 WrapperNode [2023-11-06 22:40:13,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:40:13,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:40:13,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:40:13,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:40:13,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,715 INFO L138 Inliner]: procedures = 163, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-11-06 22:40:13,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:40:13,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:40:13,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:40:13,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:40:13,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:40:13,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:40:13,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:40:13,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:40:13,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (1/1) ... [2023-11-06 22:40:13,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:40:13,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:13,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:13,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:40:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:40:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:40:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:40:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:40:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:40:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:40:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:40:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:40:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-11-06 22:40:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:40:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:40:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:40:13,882 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:40:14,088 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:40:14,092 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:40:14,364 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:40:14,372 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:40:14,372 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:40:14,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:14 BoogieIcfgContainer [2023-11-06 22:40:14,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:40:14,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:40:14,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:40:14,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:40:14,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:40:13" (1/3) ... [2023-11-06 22:40:14,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31402af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:40:14, skipping insertion in model container [2023-11-06 22:40:14,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:13" (2/3) ... [2023-11-06 22:40:14,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31402af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:40:14, skipping insertion in model container [2023-11-06 22:40:14,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:14" (3/3) ... [2023-11-06 22:40:14,385 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2023-11-06 22:40:14,395 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:40:14,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:40:14,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:40:14,407 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:40:14,462 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:40:14,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 163 flow [2023-11-06 22:40:14,554 INFO L124 PetriNetUnfolderBase]: 2/77 cut-off events. [2023-11-06 22:40:14,554 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:40:14,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 2/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-11-06 22:40:14,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 163 flow [2023-11-06 22:40:14,565 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 69 transitions, 141 flow [2023-11-06 22:40:14,569 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:40:14,586 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 69 transitions, 141 flow [2023-11-06 22:40:14,589 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 69 transitions, 141 flow [2023-11-06 22:40:14,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 69 transitions, 141 flow [2023-11-06 22:40:14,618 INFO L124 PetriNetUnfolderBase]: 2/69 cut-off events. [2023-11-06 22:40:14,624 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:40:14,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 2/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-11-06 22:40:14,627 INFO L119 LiptonReduction]: Number of co-enabled transitions 966 [2023-11-06 22:40:17,204 INFO L134 LiptonReduction]: Checked pairs total: 3010 [2023-11-06 22:40:17,205 INFO L136 LiptonReduction]: Total number of compositions: 53 [2023-11-06 22:40:17,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:40:17,229 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@193847e9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:40:17,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-06 22:40:17,234 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:40:17,234 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-11-06 22:40:17,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:40:17,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:17,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:40:17,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:40:17,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:17,244 INFO L85 PathProgramCache]: Analyzing trace with hash 8350815, now seen corresponding path program 1 times [2023-11-06 22:40:17,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:17,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570044347] [2023-11-06 22:40:17,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:17,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:17,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:17,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570044347] [2023-11-06 22:40:17,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570044347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:17,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:17,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:17,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531235667] [2023-11-06 22:40:17,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:17,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:17,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:17,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:17,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 131 [2023-11-06 22:40:17,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:17,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 131 [2023-11-06 22:40:17,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:17,754 INFO L124 PetriNetUnfolderBase]: 59/152 cut-off events. [2023-11-06 22:40:17,754 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:40:17,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 152 events. 59/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 586 event pairs, 20 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 275. Up to 101 conditions per place. [2023-11-06 22:40:17,757 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 25 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2023-11-06 22:40:17,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 34 transitions, 127 flow [2023-11-06 22:40:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:17,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:17,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2023-11-06 22:40:17,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6259541984732825 [2023-11-06 22:40:17,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 246 transitions. [2023-11-06 22:40:17,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 246 transitions. [2023-11-06 22:40:17,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:17,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 246 transitions. [2023-11-06 22:40:17,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,806 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 53 flow. Second operand 3 states and 246 transitions. [2023-11-06 22:40:17,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 34 transitions, 127 flow [2023-11-06 22:40:17,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:17,811 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 73 flow [2023-11-06 22:40:17,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2023-11-06 22:40:17,818 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2023-11-06 22:40:17,819 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 73 flow [2023-11-06 22:40:17,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:17,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:40:17,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:40:17,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:40:17,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:17,821 INFO L85 PathProgramCache]: Analyzing trace with hash 258901716, now seen corresponding path program 1 times [2023-11-06 22:40:17,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:17,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155660411] [2023-11-06 22:40:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:17,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:17,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:17,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155660411] [2023-11-06 22:40:17,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155660411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:17,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:17,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:40:17,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813880432] [2023-11-06 22:40:17,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:17,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:17,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:17,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:17,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:17,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 131 [2023-11-06 22:40:17,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:17,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:17,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 131 [2023-11-06 22:40:17,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:17,991 INFO L124 PetriNetUnfolderBase]: 42/111 cut-off events. [2023-11-06 22:40:17,991 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-06 22:40:17,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 111 events. 42/111 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 382 event pairs, 23 based on Foata normal form. 9/109 useless extension candidates. Maximal degree in co-relation 223. Up to 63 conditions per place. [2023-11-06 22:40:17,993 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 21 selfloop transitions, 2 changer transitions 3/31 dead transitions. [2023-11-06 22:40:17,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 131 flow [2023-11-06 22:40:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:17,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2023-11-06 22:40:17,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6132315521628499 [2023-11-06 22:40:17,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 241 transitions. [2023-11-06 22:40:17,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 241 transitions. [2023-11-06 22:40:17,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:17,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 241 transitions. [2023-11-06 22:40:17,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 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) [2023-11-06 22:40:18,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,002 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 73 flow. Second operand 3 states and 241 transitions. [2023-11-06 22:40:18,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 131 flow [2023-11-06 22:40:18,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:18,004 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 68 flow [2023-11-06 22:40:18,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2023-11-06 22:40:18,005 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2023-11-06 22:40:18,006 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 68 flow [2023-11-06 22:40:18,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:18,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:18,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:40:18,007 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:40:18,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:18,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2103726349, now seen corresponding path program 1 times [2023-11-06 22:40:18,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:18,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546235290] [2023-11-06 22:40:18,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:18,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:18,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:18,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546235290] [2023-11-06 22:40:18,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546235290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:18,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:18,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:40:18,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523611235] [2023-11-06 22:40:18,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:18,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:18,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:18,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:18,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:18,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 131 [2023-11-06 22:40:18,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:18,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 131 [2023-11-06 22:40:18,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:18,267 INFO L124 PetriNetUnfolderBase]: 21/85 cut-off events. [2023-11-06 22:40:18,267 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-06 22:40:18,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 85 events. 21/85 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 321 event pairs, 4 based on Foata normal form. 9/85 useless extension candidates. Maximal degree in co-relation 174. Up to 40 conditions per place. [2023-11-06 22:40:18,269 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 19 selfloop transitions, 8 changer transitions 1/33 dead transitions. [2023-11-06 22:40:18,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 151 flow [2023-11-06 22:40:18,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-11-06 22:40:18,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5826972010178118 [2023-11-06 22:40:18,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-11-06 22:40:18,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-11-06 22:40:18,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:18,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-11-06 22:40:18,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,278 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 68 flow. Second operand 3 states and 229 transitions. [2023-11-06 22:40:18,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 151 flow [2023-11-06 22:40:18,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 145 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:40:18,280 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 100 flow [2023-11-06 22:40:18,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-11-06 22:40:18,282 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 3 predicate places. [2023-11-06 22:40:18,286 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 100 flow [2023-11-06 22:40:18,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:18,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:18,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:40:18,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:40:18,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:18,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2114375697, now seen corresponding path program 1 times [2023-11-06 22:40:18,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:18,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407252716] [2023-11-06 22:40:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:18,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:18,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:18,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:18,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407252716] [2023-11-06 22:40:18,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407252716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:18,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:18,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:40:18,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498625102] [2023-11-06 22:40:18,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:18,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:40:18,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:18,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:40:18,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:40:18,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 131 [2023-11-06 22:40:18,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:18,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 131 [2023-11-06 22:40:18,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:18,524 INFO L124 PetriNetUnfolderBase]: 22/83 cut-off events. [2023-11-06 22:40:18,524 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-06 22:40:18,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 83 events. 22/83 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 284 event pairs, 7 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 218. Up to 32 conditions per place. [2023-11-06 22:40:18,525 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 28 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2023-11-06 22:40:18,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 196 flow [2023-11-06 22:40:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:40:18,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:40:18,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2023-11-06 22:40:18,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5744274809160306 [2023-11-06 22:40:18,528 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 301 transitions. [2023-11-06 22:40:18,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 301 transitions. [2023-11-06 22:40:18,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:18,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 301 transitions. [2023-11-06 22:40:18,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,533 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,533 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 100 flow. Second operand 4 states and 301 transitions. [2023-11-06 22:40:18,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 196 flow [2023-11-06 22:40:18,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:18,536 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 94 flow [2023-11-06 22:40:18,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-11-06 22:40:18,537 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2023-11-06 22:40:18,537 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 94 flow [2023-11-06 22:40:18,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:18,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:18,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:40:18,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:40:18,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:18,540 INFO L85 PathProgramCache]: Analyzing trace with hash -2114375716, now seen corresponding path program 1 times [2023-11-06 22:40:18,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:18,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468009963] [2023-11-06 22:40:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:18,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:18,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:18,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:18,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468009963] [2023-11-06 22:40:18,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468009963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:18,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:18,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:40:18,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87640840] [2023-11-06 22:40:18,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:18,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:40:18,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:18,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:40:18,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:40:18,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 131 [2023-11-06 22:40:18,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:18,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 131 [2023-11-06 22:40:18,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:18,699 INFO L124 PetriNetUnfolderBase]: 21/77 cut-off events. [2023-11-06 22:40:18,700 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-06 22:40:18,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 77 events. 21/77 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 236 event pairs, 8 based on Foata normal form. 3/74 useless extension candidates. Maximal degree in co-relation 195. Up to 32 conditions per place. [2023-11-06 22:40:18,701 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 20 selfloop transitions, 2 changer transitions 7/31 dead transitions. [2023-11-06 22:40:18,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 166 flow [2023-11-06 22:40:18,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:40:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:40:18,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 297 transitions. [2023-11-06 22:40:18,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.566793893129771 [2023-11-06 22:40:18,703 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 297 transitions. [2023-11-06 22:40:18,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 297 transitions. [2023-11-06 22:40:18,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:18,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 297 transitions. [2023-11-06 22:40:18,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,708 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,708 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 94 flow. Second operand 4 states and 297 transitions. [2023-11-06 22:40:18,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 166 flow [2023-11-06 22:40:18,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 157 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:40:18,711 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 68 flow [2023-11-06 22:40:18,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2023-11-06 22:40:18,713 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2023-11-06 22:40:18,714 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 68 flow [2023-11-06 22:40:18,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:18,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:18,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:40:18,715 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:40:18,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2105532848, now seen corresponding path program 1 times [2023-11-06 22:40:18,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:18,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894659045] [2023-11-06 22:40:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:18,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:18,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:18,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894659045] [2023-11-06 22:40:18,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894659045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:18,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:18,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:40:18,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156605593] [2023-11-06 22:40:18,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:18,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:40:18,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:18,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:40:18,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:40:18,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 131 [2023-11-06 22:40:18,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:18,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 131 [2023-11-06 22:40:18,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:18,947 INFO L124 PetriNetUnfolderBase]: 22/76 cut-off events. [2023-11-06 22:40:18,947 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 22:40:18,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 76 events. 22/76 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 209 event pairs, 4 based on Foata normal form. 1/71 useless extension candidates. Maximal degree in co-relation 190. Up to 44 conditions per place. [2023-11-06 22:40:18,948 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 18 selfloop transitions, 5 changer transitions 0/26 dead transitions. [2023-11-06 22:40:18,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 141 flow [2023-11-06 22:40:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:40:18,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:40:18,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2023-11-06 22:40:18,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5750636132315522 [2023-11-06 22:40:18,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2023-11-06 22:40:18,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2023-11-06 22:40:18,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:18,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2023-11-06 22:40:18,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,953 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,953 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 68 flow. Second operand 3 states and 226 transitions. [2023-11-06 22:40:18,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 141 flow [2023-11-06 22:40:18,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 26 transitions, 133 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:40:18,955 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 95 flow [2023-11-06 22:40:18,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-11-06 22:40:18,956 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-11-06 22:40:18,957 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 95 flow [2023-11-06 22:40:18,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:18,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:18,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:18,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:40:18,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:40:18,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:18,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1048274341, now seen corresponding path program 1 times [2023-11-06 22:40:18,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:18,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178641986] [2023-11-06 22:40:18,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:18,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:19,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:19,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178641986] [2023-11-06 22:40:19,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178641986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:19,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:19,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:40:19,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888256102] [2023-11-06 22:40:19,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:19,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:40:19,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:19,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:40:19,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:40:19,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 131 [2023-11-06 22:40:19,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:19,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 131 [2023-11-06 22:40:19,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:19,169 INFO L124 PetriNetUnfolderBase]: 23/75 cut-off events. [2023-11-06 22:40:19,170 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-06 22:40:19,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 75 events. 23/75 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 186 event pairs, 2 based on Foata normal form. 4/79 useless extension candidates. Maximal degree in co-relation 217. Up to 37 conditions per place. [2023-11-06 22:40:19,171 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 26 selfloop transitions, 3 changer transitions 1/32 dead transitions. [2023-11-06 22:40:19,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 32 transitions, 200 flow [2023-11-06 22:40:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:40:19,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:40:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 360 transitions. [2023-11-06 22:40:19,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.549618320610687 [2023-11-06 22:40:19,174 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 360 transitions. [2023-11-06 22:40:19,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 360 transitions. [2023-11-06 22:40:19,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:19,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 360 transitions. [2023-11-06 22:40:19,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,178 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,179 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 95 flow. Second operand 5 states and 360 transitions. [2023-11-06 22:40:19,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 32 transitions, 200 flow [2023-11-06 22:40:19,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 32 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:40:19,181 INFO L231 Difference]: Finished difference. Result has 27 places, 21 transitions, 92 flow [2023-11-06 22:40:19,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=27, PETRI_TRANSITIONS=21} [2023-11-06 22:40:19,182 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-11-06 22:40:19,182 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 92 flow [2023-11-06 22:40:19,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:40:19,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:19,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:40:19,184 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:40:19,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:19,184 INFO L85 PathProgramCache]: Analyzing trace with hash 516171193, now seen corresponding path program 1 times [2023-11-06 22:40:19,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:19,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946550748] [2023-11-06 22:40:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:19,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:19,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946550748] [2023-11-06 22:40:19,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946550748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:40:19,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:40:19,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:40:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313957080] [2023-11-06 22:40:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:40:19,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:40:19,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:19,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:40:19,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:40:19,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 131 [2023-11-06 22:40:19,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:40:19,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 131 [2023-11-06 22:40:19,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:40:19,343 INFO L124 PetriNetUnfolderBase]: 22/70 cut-off events. [2023-11-06 22:40:19,344 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-11-06 22:40:19,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 70 events. 22/70 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 170 event pairs, 1 based on Foata normal form. 4/74 useless extension candidates. Maximal degree in co-relation 205. Up to 32 conditions per place. [2023-11-06 22:40:19,345 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2023-11-06 22:40:19,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 192 flow [2023-11-06 22:40:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:40:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:40:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 359 transitions. [2023-11-06 22:40:19,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480916030534351 [2023-11-06 22:40:19,348 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 359 transitions. [2023-11-06 22:40:19,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 359 transitions. [2023-11-06 22:40:19,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:19,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 359 transitions. [2023-11-06 22:40:19,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,352 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,352 INFO L175 Difference]: Start difference. First operand has 27 places, 21 transitions, 92 flow. Second operand 5 states and 359 transitions. [2023-11-06 22:40:19,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 192 flow [2023-11-06 22:40:19,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 31 transitions, 185 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:40:19,354 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-11-06 22:40:19,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-11-06 22:40:19,355 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-11-06 22:40:19,355 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-11-06 22:40:19,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:19,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2023-11-06 22:40:19,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-11-06 22:40:19,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-11-06 22:40:19,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-11-06 22:40:19,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2023-11-06 22:40:19,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2023-11-06 22:40:19,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2023-11-06 22:40:19,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2023-11-06 22:40:19,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2023-11-06 22:40:19,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2023-11-06 22:40:19,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2023-11-06 22:40:19,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:40:19,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:40:19,368 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:40:19,368 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:40:19,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:40:19 BasicIcfg [2023-11-06 22:40:19,372 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:40:19,373 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:40:19,373 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:40:19,373 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:40:19,374 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:14" (3/4) ... [2023-11-06 22:40:19,376 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:40:19,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 22:40:19,384 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-06 22:40:19,385 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:40:19,385 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:40:19,433 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:40:19,434 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:40:19,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:40:19,435 INFO L158 Benchmark]: Toolchain (without parser) took 6324.74ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 84.5MB in the beginning and 80.2MB in the end (delta: 4.3MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2023-11-06 22:40:19,435 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 94.4MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:40:19,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.57ms. Allocated memory is still 130.0MB. Free memory was 84.1MB in the beginning and 65.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:40:19,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.76ms. Allocated memory is still 130.0MB. Free memory was 65.2MB in the beginning and 63.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:40:19,436 INFO L158 Benchmark]: Boogie Preprocessor took 47.15ms. Allocated memory is still 130.0MB. Free memory was 63.6MB in the beginning and 61.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:40:19,437 INFO L158 Benchmark]: RCFGBuilder took 610.57ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 61.9MB in the beginning and 131.6MB in the end (delta: -69.7MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-11-06 22:40:19,437 INFO L158 Benchmark]: TraceAbstraction took 4994.59ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 83.3MB in the end (delta: 47.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-11-06 22:40:19,437 INFO L158 Benchmark]: Witness Printer took 61.04ms. Allocated memory is still 167.8MB. Free memory was 83.3MB in the beginning and 80.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:40:19,439 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 94.4MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.57ms. Allocated memory is still 130.0MB. Free memory was 84.1MB in the beginning and 65.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.76ms. Allocated memory is still 130.0MB. Free memory was 65.2MB in the beginning and 63.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.15ms. Allocated memory is still 130.0MB. Free memory was 63.6MB in the beginning and 61.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.57ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 61.9MB in the beginning and 131.6MB in the end (delta: -69.7MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4994.59ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 83.3MB in the end (delta: 47.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 61.04ms. Allocated memory is still 167.8MB. Free memory was 83.3MB in the beginning and 80.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 71 PlacesBefore, 28 PlacesAfterwards, 69 TransitionsBefore, 25 TransitionsAfterwards, 966 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 53 TotalNumberOfCompositions, 3010 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1174, independent: 986, independent conditional: 0, independent unconditional: 986, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 511, independent: 467, independent conditional: 0, independent unconditional: 467, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1174, independent: 519, independent conditional: 0, independent unconditional: 519, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 511, unknown conditional: 0, unknown unconditional: 511] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: 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 3 procedures, 102 locations, 11 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: 4.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 288 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 458 IncrementalHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 43 mSDtfsCounter, 458 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=3, InterpolantAutomatonStates: 30, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:40:19,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_262f501a-b1bf-4776-babc-637a115ad277/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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