./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.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_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/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_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/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_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/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 e9fa0a1b11704376245a2fedbc5c4fb7e02255cba008bc8067c3e06529a17976 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:01,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:01,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:32:01,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:01,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:01,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:01,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:01,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:01,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:01,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:01,705 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:01,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:01,725 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:01,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:01,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:01,727 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:32:01,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:32:01,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:32:01,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:01,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:01,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:01,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:01,732 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:32:01,733 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:32:01,733 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:32:01,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:01,734 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:01,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:01,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:01,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:01,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:01,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:01,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:01,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:01,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:32:01,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:32:01,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:01,740 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:01,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:01,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:01,742 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:01,742 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_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fa0a1b11704376245a2fedbc5c4fb7e02255cba008bc8067c3e06529a17976 [2023-11-06 22:32:01,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:02,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:02,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:02,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:02,012 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:02,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i [2023-11-06 22:32:05,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:05,480 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:05,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i [2023-11-06 22:32:05,498 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/data/77166c88d/d0063e2a030a4db2bf28f87d6cd8c3a0/FLAG49f804b20 [2023-11-06 22:32:05,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/data/77166c88d/d0063e2a030a4db2bf28f87d6cd8c3a0 [2023-11-06 22:32:05,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:05,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:05,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:05,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:05,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:05,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:05" (1/1) ... [2023-11-06 22:32:05,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29628353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:05, skipping insertion in model container [2023-11-06 22:32:05,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:05" (1/1) ... [2023-11-06 22:32:05,616 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:06,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:06,157 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:06,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:06,284 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:06,285 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:32:06,293 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:06,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06 WrapperNode [2023-11-06 22:32:06,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:06,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:06,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:06,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:06,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,377 INFO L138 Inliner]: procedures = 177, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 187 [2023-11-06 22:32:06,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:06,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:06,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:06,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:06,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:06,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:06,426 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:06,426 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:06,427 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (1/1) ... [2023-11-06 22:32:06,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:06,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:06,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:06,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:32:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:32:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:32:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:32:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:32:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:32:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:32:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:32:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:32:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:32:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:32:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 22:32:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 22:32:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:32:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:32:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:06,509 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 22:32:06,691 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:06,693 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:07,401 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:07,881 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:07,882 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:32:07,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:07 BoogieIcfgContainer [2023-11-06 22:32:07,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:07,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:07,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:07,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:07,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:05" (1/3) ... [2023-11-06 22:32:07,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e307388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:07, skipping insertion in model container [2023-11-06 22:32:07,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:06" (2/3) ... [2023-11-06 22:32:07,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e307388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:07, skipping insertion in model container [2023-11-06 22:32:07,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:07" (3/3) ... [2023-11-06 22:32:07,903 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_power.oepc.i [2023-11-06 22:32:07,914 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:32:07,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:07,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:32:07,927 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:32:08,040 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:32:08,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 158 transitions, 332 flow [2023-11-06 22:32:08,194 INFO L124 PetriNetUnfolderBase]: 3/154 cut-off events. [2023-11-06 22:32:08,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:32:08,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 3/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-11-06 22:32:08,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 158 transitions, 332 flow [2023-11-06 22:32:08,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 154 transitions, 320 flow [2023-11-06 22:32:08,221 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:32:08,244 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 154 transitions, 320 flow [2023-11-06 22:32:08,249 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 154 transitions, 320 flow [2023-11-06 22:32:08,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 154 transitions, 320 flow [2023-11-06 22:32:08,315 INFO L124 PetriNetUnfolderBase]: 3/154 cut-off events. [2023-11-06 22:32:08,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:32:08,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 3/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-11-06 22:32:08,348 INFO L119 LiptonReduction]: Number of co-enabled transitions 3920 [2023-11-06 22:32:20,543 INFO L134 LiptonReduction]: Checked pairs total: 12729 [2023-11-06 22:32:20,543 INFO L136 LiptonReduction]: Total number of compositions: 137 [2023-11-06 22:32:20,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:32:20,568 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;@5a3c792f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:32:20,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-06 22:32:20,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:32:20,575 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-06 22:32:20,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:32:20,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:20,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:32:20,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:32:20,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:20,583 INFO L85 PathProgramCache]: Analyzing trace with hash 905186057, now seen corresponding path program 1 times [2023-11-06 22:32:20,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:20,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907751684] [2023-11-06 22:32:20,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:20,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:21,145 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 22:32:21,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:21,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907751684] [2023-11-06 22:32:21,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907751684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:21,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:21,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:32:21,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907994685] [2023-11-06 22:32:21,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:21,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:32:21,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:21,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:32:21,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:32:21,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2023-11-06 22:32:21,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states 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 22:32:21,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:21,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2023-11-06 22:32:21,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:24,066 INFO L124 PetriNetUnfolderBase]: 7463/10097 cut-off events. [2023-11-06 22:32:24,067 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2023-11-06 22:32:24,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20369 conditions, 10097 events. 7463/10097 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 51791 event pairs, 7463 based on Foata normal form. 400/7790 useless extension candidates. Maximal degree in co-relation 20357. Up to 10064 conditions per place. [2023-11-06 22:32:24,171 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 26 selfloop transitions, 1 changer transitions 0/29 dead transitions. [2023-11-06 22:32:24,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 29 transitions, 124 flow [2023-11-06 22:32:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:32:24,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:32:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2023-11-06 22:32:24,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48361581920903957 [2023-11-06 22:32:24,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2023-11-06 22:32:24,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2023-11-06 22:32:24,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:24,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2023-11-06 22:32:24,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states 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 22:32:24,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:32:24,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:32:24,219 INFO L175 Difference]: Start difference. First operand has 46 places, 34 transitions, 80 flow. Second operand 3 states and 428 transitions. [2023-11-06 22:32:24,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 29 transitions, 124 flow [2023-11-06 22:32:24,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:32:24,228 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 68 flow [2023-11-06 22:32:24,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-11-06 22:32:24,234 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -6 predicate places. [2023-11-06 22:32:24,235 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 68 flow [2023-11-06 22:32:24,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states 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 22:32:24,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:24,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:32:24,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:32:24,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:32:24,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:24,247 INFO L85 PathProgramCache]: Analyzing trace with hash 905186058, now seen corresponding path program 1 times [2023-11-06 22:32:24,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:24,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816454451] [2023-11-06 22:32:24,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:24,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:24,343 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 22:32:24,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:24,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816454451] [2023-11-06 22:32:24,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816454451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:24,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:24,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:32:24,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844137972] [2023-11-06 22:32:24,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:24,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:32:24,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:24,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:32:24,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:32:24,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2023-11-06 22:32:24,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states 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 22:32:24,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:24,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2023-11-06 22:32:24,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:26,080 INFO L124 PetriNetUnfolderBase]: 4237/5995 cut-off events. [2023-11-06 22:32:26,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:32:26,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12127 conditions, 5995 events. 4237/5995 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 31092 event pairs, 1581 based on Foata normal form. 0/4532 useless extension candidates. Maximal degree in co-relation 12121. Up to 5695 conditions per place. [2023-11-06 22:32:26,168 INFO L140 encePairwiseOnDemand]: 285/295 looper letters, 39 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2023-11-06 22:32:26,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 196 flow [2023-11-06 22:32:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:32:26,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:32:26,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2023-11-06 22:32:26,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5028248587570622 [2023-11-06 22:32:26,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2023-11-06 22:32:26,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2023-11-06 22:32:26,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:26,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2023-11-06 22:32:26,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states 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 22:32:26,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:32:26,188 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:32:26,190 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 68 flow. Second operand 3 states and 445 transitions. [2023-11-06 22:32:26,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 196 flow [2023-11-06 22:32:26,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 195 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:32:26,202 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 108 flow [2023-11-06 22:32:26,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2023-11-06 22:32:26,204 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -4 predicate places. [2023-11-06 22:32:26,204 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 108 flow [2023-11-06 22:32:26,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states 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 22:32:26,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:26,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:26,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:32:26,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:32:26,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:26,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1074073030, now seen corresponding path program 1 times [2023-11-06 22:32:26,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:26,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253030718] [2023-11-06 22:32:26,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:26,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:26,394 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 22:32:26,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:26,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253030718] [2023-11-06 22:32:26,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253030718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:26,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:26,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:26,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851879288] [2023-11-06 22:32:26,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:26,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:32:26,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:26,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:32:26,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:32:26,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2023-11-06 22:32:26,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states 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 22:32:26,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:26,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2023-11-06 22:32:26,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:27,351 INFO L124 PetriNetUnfolderBase]: 1609/2441 cut-off events. [2023-11-06 22:32:27,351 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES. [2023-11-06 22:32:27,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6139 conditions, 2441 events. 1609/2441 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11788 event pairs, 453 based on Foata normal form. 60/2214 useless extension candidates. Maximal degree in co-relation 6131. Up to 1625 conditions per place. [2023-11-06 22:32:27,370 INFO L140 encePairwiseOnDemand]: 285/295 looper letters, 50 selfloop transitions, 9 changer transitions 0/61 dead transitions. [2023-11-06 22:32:27,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 61 transitions, 300 flow [2023-11-06 22:32:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:32:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:32:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 592 transitions. [2023-11-06 22:32:27,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5016949152542373 [2023-11-06 22:32:27,375 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 592 transitions. [2023-11-06 22:32:27,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 592 transitions. [2023-11-06 22:32:27,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:27,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 592 transitions. [2023-11-06 22:32:27,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 22:32:27,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states 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 22:32:27,385 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states 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 22:32:27,385 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 108 flow. Second operand 4 states and 592 transitions. [2023-11-06 22:32:27,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 61 transitions, 300 flow [2023-11-06 22:32:27,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 61 transitions, 295 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:32:27,388 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 163 flow [2023-11-06 22:32:27,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-11-06 22:32:27,390 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-11-06 22:32:27,390 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 163 flow [2023-11-06 22:32:27,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states 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 22:32:27,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:27,391 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:27,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:32:27,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:32:27,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:27,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1660016343, now seen corresponding path program 1 times [2023-11-06 22:32:27,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:27,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981805530] [2023-11-06 22:32:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:27,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:27,600 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 22:32:27,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:27,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981805530] [2023-11-06 22:32:27,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981805530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:27,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:27,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:32:27,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848769709] [2023-11-06 22:32:27,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:27,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:32:27,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:32:27,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:32:27,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2023-11-06 22:32:27,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states 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 22:32:27,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:27,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2023-11-06 22:32:27,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:28,223 INFO L124 PetriNetUnfolderBase]: 911/1373 cut-off events. [2023-11-06 22:32:28,224 INFO L125 PetriNetUnfolderBase]: For 900/900 co-relation queries the response was YES. [2023-11-06 22:32:28,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3965 conditions, 1373 events. 911/1373 cut-off events. For 900/900 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5781 event pairs, 203 based on Foata normal form. 37/1381 useless extension candidates. Maximal degree in co-relation 3955. Up to 516 conditions per place. [2023-11-06 22:32:28,234 INFO L140 encePairwiseOnDemand]: 285/295 looper letters, 55 selfloop transitions, 13 changer transitions 4/74 dead transitions. [2023-11-06 22:32:28,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 74 transitions, 409 flow [2023-11-06 22:32:28,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:32:28,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:32:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 737 transitions. [2023-11-06 22:32:28,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49966101694915255 [2023-11-06 22:32:28,239 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 737 transitions. [2023-11-06 22:32:28,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 737 transitions. [2023-11-06 22:32:28,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:28,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 737 transitions. [2023-11-06 22:32:28,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.4) internal successors, (737), 5 states have internal predecessors, (737), 0 states have call successors, (0), 0 states 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 22:32:28,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states 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 22:32:28,251 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states 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 22:32:28,251 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 163 flow. Second operand 5 states and 737 transitions. [2023-11-06 22:32:28,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 74 transitions, 409 flow [2023-11-06 22:32:28,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 391 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-06 22:32:28,258 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 189 flow [2023-11-06 22:32:28,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-11-06 22:32:28,260 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2023-11-06 22:32:28,260 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 189 flow [2023-11-06 22:32:28,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states 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 22:32:28,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:32:28,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:28,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:32:28,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-06 22:32:28,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:28,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2022527626, now seen corresponding path program 1 times [2023-11-06 22:32:28,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:28,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958484421] [2023-11-06 22:32:28,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:28,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,484 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 22:32:28,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:28,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958484421] [2023-11-06 22:32:28,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958484421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:28,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:28,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:32:28,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375317196] [2023-11-06 22:32:28,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:28,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:32:28,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:28,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:32:28,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:32:28,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2023-11-06 22:32:28,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:32:28,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:32:28,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2023-11-06 22:32:28,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:32:29,082 INFO L124 PetriNetUnfolderBase]: 844/1236 cut-off events. [2023-11-06 22:32:29,083 INFO L125 PetriNetUnfolderBase]: For 1110/1110 co-relation queries the response was YES. [2023-11-06 22:32:29,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3680 conditions, 1236 events. 844/1236 cut-off events. For 1110/1110 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5131 event pairs, 183 based on Foata normal form. 18/1249 useless extension candidates. Maximal degree in co-relation 3669. Up to 516 conditions per place. [2023-11-06 22:32:29,088 INFO L140 encePairwiseOnDemand]: 285/295 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2023-11-06 22:32:29,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 341 flow [2023-11-06 22:32:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:32:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:32:29,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 857 transitions. [2023-11-06 22:32:29,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48418079096045197 [2023-11-06 22:32:29,094 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 857 transitions. [2023-11-06 22:32:29,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 857 transitions. [2023-11-06 22:32:29,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:32:29,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 857 transitions. [2023-11-06 22:32:29,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states 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 22:32:29,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states 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 22:32:29,107 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states 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 22:32:29,107 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 189 flow. Second operand 6 states and 857 transitions. [2023-11-06 22:32:29,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 341 flow [2023-11-06 22:32:29,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 62 transitions, 286 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-06 22:32:29,131 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-11-06 22:32:29,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-11-06 22:32:29,132 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2023-11-06 22:32:29,132 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-11-06 22:32:29,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:32:29,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-06 22:32:29,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-06 22:32:29,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-06 22:32:29,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-06 22:32:29,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-06 22:32:29,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-06 22:32:29,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-06 22:32:29,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-06 22:32:29,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-06 22:32:29,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-06 22:32:29,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-06 22:32:29,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-06 22:32:29,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-06 22:32:29,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-06 22:32:29,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-06 22:32:29,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-06 22:32:29,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-06 22:32:29,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-06 22:32:29,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-06 22:32:29,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-06 22:32:29,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:32:29,143 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:32:29,155 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:32:29,155 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:32:29,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:32:29 BasicIcfg [2023-11-06 22:32:29,162 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:32:29,163 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:32:29,163 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:32:29,163 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:32:29,164 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:07" (3/4) ... [2023-11-06 22:32:29,166 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:32:29,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:32:29,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:32:29,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 22:32:29,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-06 22:32:29,189 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2023-11-06 22:32:29,190 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-06 22:32:29,191 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:32:29,191 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:32:29,314 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:32:29,315 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:32:29,315 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:32:29,316 INFO L158 Benchmark]: Toolchain (without parser) took 23797.99ms. Allocated memory was 134.2MB in the beginning and 683.7MB in the end (delta: 549.5MB). Free memory was 88.9MB in the beginning and 384.3MB in the end (delta: -295.4MB). Peak memory consumption was 255.5MB. Max. memory is 16.1GB. [2023-11-06 22:32:29,316 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:29,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 775.20ms. Allocated memory is still 134.2MB. Free memory was 88.5MB in the beginning and 63.0MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 22:32:29,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.74ms. Allocated memory is still 134.2MB. Free memory was 63.0MB in the beginning and 60.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:32:29,318 INFO L158 Benchmark]: Boogie Preprocessor took 46.78ms. Allocated memory is still 134.2MB. Free memory was 60.0MB in the beginning and 57.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:32:29,318 INFO L158 Benchmark]: RCFGBuilder took 1460.22ms. Allocated memory is still 134.2MB. Free memory was 57.5MB in the beginning and 82.7MB in the end (delta: -25.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2023-11-06 22:32:29,318 INFO L158 Benchmark]: TraceAbstraction took 21272.24ms. Allocated memory was 134.2MB in the beginning and 683.7MB in the end (delta: 549.5MB). Free memory was 81.9MB in the beginning and 388.5MB in the end (delta: -306.6MB). Peak memory consumption was 241.6MB. Max. memory is 16.1GB. [2023-11-06 22:32:29,319 INFO L158 Benchmark]: Witness Printer took 151.70ms. Allocated memory is still 683.7MB. Free memory was 388.5MB in the beginning and 384.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:32:29,322 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 775.20ms. Allocated memory is still 134.2MB. Free memory was 88.5MB in the beginning and 63.0MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.74ms. Allocated memory is still 134.2MB. Free memory was 63.0MB in the beginning and 60.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.78ms. Allocated memory is still 134.2MB. Free memory was 60.0MB in the beginning and 57.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1460.22ms. Allocated memory is still 134.2MB. Free memory was 57.5MB in the beginning and 82.7MB in the end (delta: -25.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * TraceAbstraction took 21272.24ms. Allocated memory was 134.2MB in the beginning and 683.7MB in the end (delta: 549.5MB). Free memory was 81.9MB in the beginning and 388.5MB in the end (delta: -306.6MB). Peak memory consumption was 241.6MB. Max. memory is 16.1GB. * Witness Printer took 151.70ms. Allocated memory is still 683.7MB. Free memory was 388.5MB in the beginning and 384.3MB 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: 12.3s, 164 PlacesBefore, 46 PlacesAfterwards, 154 TransitionsBefore, 34 TransitionsAfterwards, 3920 CoEnabledTransitionPairs, 7 FixpointIterations, 60 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 137 TotalNumberOfCompositions, 12729 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4636, independent: 4314, independent conditional: 0, independent unconditional: 4314, dependent: 322, dependent conditional: 0, dependent unconditional: 322, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2045, independent: 1993, independent conditional: 0, independent unconditional: 1993, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4636, independent: 2321, independent conditional: 0, independent unconditional: 2321, dependent: 270, dependent conditional: 0, dependent unconditional: 270, unknown: 2045, unknown conditional: 0, unknown unconditional: 2045] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: 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 9 procedures, 196 locations, 20 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: 21.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 346 IncrementalHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 15 mSDtfsCounter, 346 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:32:29,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee6616e-bb7b-4390-a8c1-d7d91fe925bb/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