./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe031_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe031_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26b6897a83c9df9076ea7ea4c612ce46453382fa627c0d6af54da2d169befd96 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:38,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:38,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:02:38,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:38,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:39,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:39,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:39,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:39,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:39,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:39,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:39,027 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:39,028 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:39,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:39,029 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:02:39,030 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:39,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:39,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:39,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:39,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:02:39,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:39,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:02:39,035 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:02:39,036 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:02:39,036 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:39,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:39,038 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:39,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:39,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:39,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:39,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:39,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:39,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:39,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:02:39,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:39,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:02:39,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:39,043 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:02:39,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:39,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:39,059 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:39,060 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_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26b6897a83c9df9076ea7ea4c612ce46453382fa627c0d6af54da2d169befd96 [2023-11-19 08:02:39,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:39,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:39,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:39,344 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:39,344 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:39,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe031_tso.i [2023-11-19 08:02:42,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:42,903 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:42,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/sv-benchmarks/c/pthread-wmm/safe031_tso.i [2023-11-19 08:02:42,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/data/7cad9bf1b/3deccb9f9d9c4e67b43e10a39aeb7d68/FLAG90fb2248f [2023-11-19 08:02:42,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/data/7cad9bf1b/3deccb9f9d9c4e67b43e10a39aeb7d68 [2023-11-19 08:02:42,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:42,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:42,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:42,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:42,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:42,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:42" (1/1) ... [2023-11-19 08:02:42,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60077cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:42, skipping insertion in model container [2023-11-19 08:02:42,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:42" (1/1) ... [2023-11-19 08:02:43,037 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:43,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:43,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:43,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:43,563 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:02:43,563 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:02:43,569 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:43,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43 WrapperNode [2023-11-19 08:02:43,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:43,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:43,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:43,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:43,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,634 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2023-11-19 08:02:43,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:43,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:43,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:43,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:43,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:43,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:43,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:43,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:43,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:43,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:43,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:43,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:43,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:02:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:02:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:02:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:02:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:02:43,757 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:02:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:02:43,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:02:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 08:02:43,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 08:02:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:02:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:02:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:43,761 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:02:43,910 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:43,912 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:44,130 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:44,200 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:44,200 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:02:44,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:44 BoogieIcfgContainer [2023-11-19 08:02:44,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:44,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:02:44,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:02:44,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:02:44,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:42" (1/3) ... [2023-11-19 08:02:44,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2638522f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:44, skipping insertion in model container [2023-11-19 08:02:44,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:43" (2/3) ... [2023-11-19 08:02:44,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2638522f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:44, skipping insertion in model container [2023-11-19 08:02:44,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:44" (3/3) ... [2023-11-19 08:02:44,225 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2023-11-19 08:02:44,236 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:02:44,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:02:44,250 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 08:02:44,250 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:02:44,336 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:02:44,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 102 transitions, 216 flow [2023-11-19 08:02:44,454 INFO L124 PetriNetUnfolderBase]: 3/99 cut-off events. [2023-11-19 08:02:44,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:44,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 3/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-19 08:02:44,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 102 transitions, 216 flow [2023-11-19 08:02:44,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 99 transitions, 207 flow [2023-11-19 08:02:44,478 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:02:44,504 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 99 transitions, 207 flow [2023-11-19 08:02:44,507 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 99 transitions, 207 flow [2023-11-19 08:02:44,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 99 transitions, 207 flow [2023-11-19 08:02:44,543 INFO L124 PetriNetUnfolderBase]: 3/99 cut-off events. [2023-11-19 08:02:44,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:44,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 3/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-19 08:02:44,548 INFO L119 LiptonReduction]: Number of co-enabled transitions 3000 [2023-11-19 08:02:47,502 INFO L134 LiptonReduction]: Checked pairs total: 5938 [2023-11-19 08:02:47,502 INFO L136 LiptonReduction]: Total number of compositions: 94 [2023-11-19 08:02:47,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:47,543 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cab3381, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:47,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 08:02:47,553 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:02:47,553 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 08:02:47,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:47,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:47,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:02:47,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:02:47,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:47,560 INFO L85 PathProgramCache]: Analyzing trace with hash 371342558, now seen corresponding path program 1 times [2023-11-19 08:02:47,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:47,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312376066] [2023-11-19 08:02:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:47,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:47,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:47,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312376066] [2023-11-19 08:02:47,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312376066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:47,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:47,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:02:47,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405478107] [2023-11-19 08:02:47,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:47,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:47,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:47,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:47,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:47,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 196 [2023-11-19 08:02:47,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:47,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:47,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 196 [2023-11-19 08:02:47,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:48,155 INFO L124 PetriNetUnfolderBase]: 437/742 cut-off events. [2023-11-19 08:02:48,155 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 08:02:48,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 742 events. 437/742 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3492 event pairs, 209 based on Foata normal form. 18/563 useless extension candidates. Maximal degree in co-relation 1514. Up to 666 conditions per place. [2023-11-19 08:02:48,171 INFO L140 encePairwiseOnDemand]: 184/196 looper letters, 30 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-11-19 08:02:48,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 153 flow [2023-11-19 08:02:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:48,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:02:48,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-11-19 08:02:48,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5068027210884354 [2023-11-19 08:02:48,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-11-19 08:02:48,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-11-19 08:02:48,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:48,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-11-19 08:02:48,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,218 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 3 states and 298 transitions. [2023-11-19 08:02:48,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 153 flow [2023-11-19 08:02:48,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:02:48,223 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 90 flow [2023-11-19 08:02:48,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-11-19 08:02:48,229 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-11-19 08:02:48,230 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 90 flow [2023-11-19 08:02:48,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:48,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:48,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:02:48,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:02:48,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:48,232 INFO L85 PathProgramCache]: Analyzing trace with hash 703967678, now seen corresponding path program 1 times [2023-11-19 08:02:48,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:48,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188315382] [2023-11-19 08:02:48,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:48,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:48,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:48,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188315382] [2023-11-19 08:02:48,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188315382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:48,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:48,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:48,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221512149] [2023-11-19 08:02:48,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:48,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:02:48,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:48,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:48,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:48,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 196 [2023-11-19 08:02:48,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:48,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 196 [2023-11-19 08:02:48,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:48,498 INFO L124 PetriNetUnfolderBase]: 142/297 cut-off events. [2023-11-19 08:02:48,498 INFO L125 PetriNetUnfolderBase]: For 29/34 co-relation queries the response was YES. [2023-11-19 08:02:48,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 297 events. 142/297 cut-off events. For 29/34 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1199 event pairs, 45 based on Foata normal form. 47/297 useless extension candidates. Maximal degree in co-relation 780. Up to 129 conditions per place. [2023-11-19 08:02:48,502 INFO L140 encePairwiseOnDemand]: 185/196 looper letters, 35 selfloop transitions, 10 changer transitions 3/49 dead transitions. [2023-11-19 08:02:48,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 49 transitions, 250 flow [2023-11-19 08:02:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:02:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:02:48,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 392 transitions. [2023-11-19 08:02:48,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-19 08:02:48,505 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 392 transitions. [2023-11-19 08:02:48,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 392 transitions. [2023-11-19 08:02:48,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:48,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 392 transitions. [2023-11-19 08:02:48,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 196.0) internal successors, (980), 5 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,511 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 196.0) internal successors, (980), 5 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,512 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 90 flow. Second operand 4 states and 392 transitions. [2023-11-19 08:02:48,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 49 transitions, 250 flow [2023-11-19 08:02:48,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 49 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:02:48,516 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 148 flow [2023-11-19 08:02:48,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2023-11-19 08:02:48,517 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-11-19 08:02:48,517 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 148 flow [2023-11-19 08:02:48,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:48,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:48,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:02:48,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:02:48,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:48,519 INFO L85 PathProgramCache]: Analyzing trace with hash 703877467, now seen corresponding path program 1 times [2023-11-19 08:02:48,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:48,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064811704] [2023-11-19 08:02:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:48,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:48,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:48,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064811704] [2023-11-19 08:02:48,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064811704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:48,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:48,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:48,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530124903] [2023-11-19 08:02:48,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:48,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:02:48,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:48,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:48,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:48,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 196 [2023-11-19 08:02:48,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:48,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 196 [2023-11-19 08:02:48,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:48,780 INFO L124 PetriNetUnfolderBase]: 111/222 cut-off events. [2023-11-19 08:02:48,781 INFO L125 PetriNetUnfolderBase]: For 264/277 co-relation queries the response was YES. [2023-11-19 08:02:48,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 222 events. 111/222 cut-off events. For 264/277 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 752 event pairs, 40 based on Foata normal form. 39/258 useless extension candidates. Maximal degree in co-relation 632. Up to 145 conditions per place. [2023-11-19 08:02:48,784 INFO L140 encePairwiseOnDemand]: 189/196 looper letters, 27 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-11-19 08:02:48,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 190 flow [2023-11-19 08:02:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:02:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:02:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2023-11-19 08:02:48,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4770408163265306 [2023-11-19 08:02:48,787 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2023-11-19 08:02:48,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2023-11-19 08:02:48,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:48,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2023-11-19 08:02:48,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 196.0) internal successors, (980), 5 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,793 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 196.0) internal successors, (980), 5 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,793 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 148 flow. Second operand 4 states and 374 transitions. [2023-11-19 08:02:48,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 190 flow [2023-11-19 08:02:48,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 172 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-19 08:02:48,798 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 96 flow [2023-11-19 08:02:48,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-11-19 08:02:48,799 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-11-19 08:02:48,799 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 96 flow [2023-11-19 08:02:48,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:48,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:48,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:02:48,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:02:48,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:48,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1817816887, now seen corresponding path program 1 times [2023-11-19 08:02:48,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:48,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767065072] [2023-11-19 08:02:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:48,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:48,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767065072] [2023-11-19 08:02:48,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767065072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:48,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:48,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:02:48,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420662886] [2023-11-19 08:02:48,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:48,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:02:48,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:48,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:02:48,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:02:48,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 196 [2023-11-19 08:02:48,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:48,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 196 [2023-11-19 08:02:48,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:49,048 INFO L124 PetriNetUnfolderBase]: 95/181 cut-off events. [2023-11-19 08:02:49,048 INFO L125 PetriNetUnfolderBase]: For 187/197 co-relation queries the response was YES. [2023-11-19 08:02:49,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 181 events. 95/181 cut-off events. For 187/197 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 599 event pairs, 34 based on Foata normal form. 19/197 useless extension candidates. Maximal degree in co-relation 503. Up to 77 conditions per place. [2023-11-19 08:02:49,050 INFO L140 encePairwiseOnDemand]: 188/196 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2023-11-19 08:02:49,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 174 flow [2023-11-19 08:02:49,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:02:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:02:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 462 transitions. [2023-11-19 08:02:49,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2023-11-19 08:02:49,053 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 462 transitions. [2023-11-19 08:02:49,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 462 transitions. [2023-11-19 08:02:49,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:49,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 462 transitions. [2023-11-19 08:02:49,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.4) internal successors, (462), 5 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:49,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:49,060 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:49,060 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 96 flow. Second operand 5 states and 462 transitions. [2023-11-19 08:02:49,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 174 flow [2023-11-19 08:02:49,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 159 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 08:02:49,062 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-11-19 08:02:49,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-11-19 08:02:49,064 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-11-19 08:02:49,064 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-11-19 08:02:49,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:49,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 08:02:49,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 08:02:49,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 08:02:49,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 08:02:49,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 08:02:49,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 08:02:49,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 08:02:49,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 08:02:49,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 08:02:49,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 08:02:49,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 08:02:49,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 08:02:49,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 08:02:49,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 08:02:49,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 08:02:49,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:02:49,079 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 08:02:49,086 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:02:49,086 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:02:49,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:02:49 BasicIcfg [2023-11-19 08:02:49,097 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:02:49,097 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:02:49,102 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:02:49,103 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:02:49,104 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:44" (3/4) ... [2023-11-19 08:02:49,106 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:02:49,109 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 08:02:49,109 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 08:02:49,110 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 08:02:49,116 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 08:02:49,116 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:02:49,116 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 08:02:49,116 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:02:49,225 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:02:49,225 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:02:49,225 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:02:49,226 INFO L158 Benchmark]: Toolchain (without parser) took 6270.38ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 118.6MB in the beginning and 174.8MB in the end (delta: -56.2MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,227 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:49,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.02ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 98.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.90ms. Allocated memory is still 159.4MB. Free memory was 98.1MB in the beginning and 96.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,231 INFO L158 Benchmark]: Boogie Preprocessor took 33.69ms. Allocated memory is still 159.4MB. Free memory was 96.1MB in the beginning and 94.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,231 INFO L158 Benchmark]: RCFGBuilder took 541.87ms. Allocated memory is still 159.4MB. Free memory was 94.5MB in the beginning and 78.3MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,232 INFO L158 Benchmark]: TraceAbstraction took 4880.05ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 77.7MB in the beginning and 180.1MB in the end (delta: -102.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:49,232 INFO L158 Benchmark]: Witness Printer took 128.28ms. Allocated memory is still 237.0MB. Free memory was 179.0MB in the beginning and 174.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,235 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.02ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 98.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.90ms. Allocated memory is still 159.4MB. Free memory was 98.1MB in the beginning and 96.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.69ms. Allocated memory is still 159.4MB. Free memory was 96.1MB in the beginning and 94.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.87ms. Allocated memory is still 159.4MB. Free memory was 94.5MB in the beginning and 78.3MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4880.05ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 77.7MB in the beginning and 180.1MB in the end (delta: -102.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 128.28ms. Allocated memory is still 237.0MB. Free memory was 179.0MB in the beginning and 174.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 106 PlacesBefore, 33 PlacesAfterwards, 99 TransitionsBefore, 24 TransitionsAfterwards, 3000 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 94 TotalNumberOfCompositions, 5938 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3506, independent: 3350, independent conditional: 0, independent unconditional: 3350, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1717, independent: 1687, independent conditional: 0, independent unconditional: 1687, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3506, independent: 1663, independent conditional: 0, independent unconditional: 1663, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 1717, unknown conditional: 0, unknown unconditional: 1717] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: 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 7 procedures, 134 locations, 15 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: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 4 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-11-19 08:02:49,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c37314-1646-495d-8d77-a80e1fe3cc82/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE