./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/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_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/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_83d197c5-d332-4160-bd25-fbcabc0a587a/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 99c42ba3d1f6c70520bbcf0a3136609166f98fb21063bda215f7779ff0bb27ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:01:00,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:01:00,971 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:01:00,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:01:00,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:01:01,011 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:01:01,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:01:01,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:01:01,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:01:01,019 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:01:01,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:01:01,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:01:01,022 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:01:01,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:01:01,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:01:01,024 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:01:01,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:01:01,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:01:01,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:01:01,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:01:01,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:01:01,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:01:01,028 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:01:01,028 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:01:01,028 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:01:01,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:01:01,029 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:01:01,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:01:01,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:01:01,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:01:01,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:01,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:01:01,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:01:01,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:01:01,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:01:01,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:01:01,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:01:01,034 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:01:01,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:01:01,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:01:01,035 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:01:01,035 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_83d197c5-d332-4160-bd25-fbcabc0a587a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99c42ba3d1f6c70520bbcf0a3136609166f98fb21063bda215f7779ff0bb27ca [2023-11-06 22:01:01,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:01:01,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:01:01,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:01:01,384 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:01:01,385 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:01:01,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/unroll-cond-2.wvr.c [2023-11-06 22:01:04,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:01:04,972 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:01:04,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/sv-benchmarks/c/weaver/unroll-cond-2.wvr.c [2023-11-06 22:01:04,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/data/e37b80969/421980f9f26948e79393bac617ea25bc/FLAGf4ed9fb34 [2023-11-06 22:01:05,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/data/e37b80969/421980f9f26948e79393bac617ea25bc [2023-11-06 22:01:05,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:01:05,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:01:05,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:05,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:01:05,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:01:05,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62435227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05, skipping insertion in model container [2023-11-06 22:01:05,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,054 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:01:05,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:05,258 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:01:05,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:05,303 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:01:05,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05 WrapperNode [2023-11-06 22:01:05,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:05,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:05,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:01:05,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:01:05,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,373 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 148 [2023-11-06 22:01:05,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:05,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:01:05,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:01:05,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:01:05,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,415 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:01:05,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:01:05,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:01:05,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:01:05,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (1/1) ... [2023-11-06 22:01:05,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:05,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:05,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:01:05,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:01:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:01:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:01:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:01:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:01:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:01:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:01:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:01:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:01:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:01:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:01:05,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:01:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:01:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:01:05,549 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 22:01:05,719 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:01:05,721 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:01:06,041 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:01:06,051 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:01:06,051 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:01:06,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:06 BoogieIcfgContainer [2023-11-06 22:01:06,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:01:06,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:01:06,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:01:06,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:01:06,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:01:05" (1/3) ... [2023-11-06 22:01:06,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f2b626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:06, skipping insertion in model container [2023-11-06 22:01:06,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:05" (2/3) ... [2023-11-06 22:01:06,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f2b626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:06, skipping insertion in model container [2023-11-06 22:01:06,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:06" (3/3) ... [2023-11-06 22:01:06,063 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-2.wvr.c [2023-11-06 22:01:06,073 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:01:06,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:01:06,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:01:06,085 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:01:06,174 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:01:06,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 185 transitions, 384 flow [2023-11-06 22:01:06,404 INFO L124 PetriNetUnfolderBase]: 15/183 cut-off events. [2023-11-06 22:01:06,404 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:01:06,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 183 events. 15/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 224 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2023-11-06 22:01:06,415 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 185 transitions, 384 flow [2023-11-06 22:01:06,422 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 66 transitions, 132 flow [2023-11-06 22:01:06,426 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:01:06,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 66 transitions, 132 flow [2023-11-06 22:01:06,449 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 66 transitions, 132 flow [2023-11-06 22:01:06,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 66 transitions, 132 flow [2023-11-06 22:01:06,474 INFO L124 PetriNetUnfolderBase]: 4/66 cut-off events. [2023-11-06 22:01:06,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:01:06,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 66 events. 4/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-06 22:01:06,477 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2023-11-06 22:01:11,200 INFO L134 LiptonReduction]: Checked pairs total: 0 [2023-11-06 22:01:11,201 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-11-06 22:01:11,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:01:11,225 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;@6ca0dc1f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:01:11,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 22:01:11,228 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:01:11,228 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:01:11,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:01:11,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:01:11,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:01:11,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:01:11,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash 19901, now seen corresponding path program 1 times [2023-11-06 22:01:11,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:11,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856467937] [2023-11-06 22:01:11,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:11,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:11,525 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 22:01:11,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:11,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856467937] [2023-11-06 22:01:11,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856467937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:11,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:11,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:01:11,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769389526] [2023-11-06 22:01:11,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:11,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:11,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:11,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:11,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 270 [2023-11-06 22:01:11,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4 places, 4 transitions, 8 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states 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 22:01:11,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:01:11,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 270 [2023-11-06 22:01:11,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:01:11,659 INFO L124 PetriNetUnfolderBase]: 1/3 cut-off events. [2023-11-06 22:01:11,659 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:01:11,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8 conditions, 3 events. 1/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-11-06 22:01:11,661 INFO L140 encePairwiseOnDemand]: 268/270 looper letters, 2 selfloop transitions, 1 changer transitions 0/3 dead transitions. [2023-11-06 22:01:11,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 5 places, 3 transitions, 12 flow [2023-11-06 22:01:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:01:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:01:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 496 transitions. [2023-11-06 22:01:11,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6123456790123457 [2023-11-06 22:01:11,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 496 transitions. [2023-11-06 22:01:11,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 496 transitions. [2023-11-06 22:01:11,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:01:11,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 496 transitions. [2023-11-06 22:01:11,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states 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 22:01:11,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states 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 22:01:11,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states 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 22:01:11,730 INFO L175 Difference]: Start difference. First operand has 4 places, 4 transitions, 8 flow. Second operand 3 states and 496 transitions. [2023-11-06 22:01:11,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 5 places, 3 transitions, 12 flow [2023-11-06 22:01:11,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 5 places, 3 transitions, 12 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:01:11,734 INFO L231 Difference]: Finished difference. Result has 5 places, 3 transitions, 8 flow [2023-11-06 22:01:11,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=6, PETRI_DIFFERENCE_MINUEND_PLACES=3, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=8, PETRI_PLACES=5, PETRI_TRANSITIONS=3} [2023-11-06 22:01:11,743 INFO L281 CegarLoopForPetriNet]: 4 programPoint places, 1 predicate places. [2023-11-06 22:01:11,743 INFO L495 AbstractCegarLoop]: Abstraction has has 5 places, 3 transitions, 8 flow [2023-11-06 22:01:11,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states 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 22:01:11,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:01:11,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:01:11,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:01:11,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:01:11,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:11,760 INFO L85 PathProgramCache]: Analyzing trace with hash 19902, now seen corresponding path program 1 times [2023-11-06 22:01:11,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:11,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802043042] [2023-11-06 22:01:11,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:11,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:11,841 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 22:01:11,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:11,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802043042] [2023-11-06 22:01:11,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802043042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:11,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:11,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:01:11,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274718817] [2023-11-06 22:01:11,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:11,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:11,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:11,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:11,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:11,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 270 [2023-11-06 22:01:11,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 5 places, 3 transitions, 8 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states 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 22:01:11,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:01:11,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 270 [2023-11-06 22:01:11,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:01:11,879 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-11-06 22:01:11,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:01:11,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 4 events. 1/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/3 useless extension candidates. Maximal degree in co-relation 6. Up to 4 conditions per place. [2023-11-06 22:01:11,880 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 2 selfloop transitions, 2 changer transitions 0/4 dead transitions. [2023-11-06 22:01:11,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 7 places, 4 transitions, 18 flow [2023-11-06 22:01:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:01:11,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:01:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2023-11-06 22:01:11,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6135802469135803 [2023-11-06 22:01:11,884 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 497 transitions. [2023-11-06 22:01:11,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 497 transitions. [2023-11-06 22:01:11,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:01:11,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 497 transitions. [2023-11-06 22:01:11,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states 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 22:01:11,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states 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 22:01:11,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states 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 22:01:11,898 INFO L175 Difference]: Start difference. First operand has 5 places, 3 transitions, 8 flow. Second operand 3 states and 497 transitions. [2023-11-06 22:01:11,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 7 places, 4 transitions, 18 flow [2023-11-06 22:01:11,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 6 places, 4 transitions, 17 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:01:11,901 INFO L231 Difference]: Finished difference. Result has 7 places, 4 transitions, 19 flow [2023-11-06 22:01:11,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=7, PETRI_DIFFERENCE_MINUEND_PLACES=4, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=19, PETRI_PLACES=7, PETRI_TRANSITIONS=4} [2023-11-06 22:01:11,902 INFO L281 CegarLoopForPetriNet]: 4 programPoint places, 3 predicate places. [2023-11-06 22:01:11,904 INFO L495 AbstractCegarLoop]: Abstraction has has 7 places, 4 transitions, 19 flow [2023-11-06 22:01:11,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states 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 22:01:11,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:01:11,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:01:11,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:01:11,908 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:01:11,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:11,917 INFO L85 PathProgramCache]: Analyzing trace with hash 618171, now seen corresponding path program 1 times [2023-11-06 22:01:11,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:11,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132416703] [2023-11-06 22:01:11,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:11,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:12,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:12,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132416703] [2023-11-06 22:01:12,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132416703] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:01:12,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665715979] [2023-11-06 22:01:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:12,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:12,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:12,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:01:12,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:01:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:01:12,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:12,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:01:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:12,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665715979] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:01:12,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:01:12,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-06 22:01:12,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864928097] [2023-11-06 22:01:12,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:01:12,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:01:12,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:12,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:01:12,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:01:12,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 270 [2023-11-06 22:01:12,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 7 places, 4 transitions, 19 flow. Second operand has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 22:01:12,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:01:12,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 270 [2023-11-06 22:01:12,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:01:12,298 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2023-11-06 22:01:12,298 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:01:12,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 7 events. 1/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 19. Up to 7 conditions per place. [2023-11-06 22:01:12,299 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 2 selfloop transitions, 5 changer transitions 0/7 dead transitions. [2023-11-06 22:01:12,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 45 flow [2023-11-06 22:01:12,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:01:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:01:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 994 transitions. [2023-11-06 22:01:12,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6135802469135803 [2023-11-06 22:01:12,318 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 994 transitions. [2023-11-06 22:01:12,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 994 transitions. [2023-11-06 22:01:12,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:01:12,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 994 transitions. [2023-11-06 22:01:12,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 22:01:12,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states 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 22:01:12,331 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states 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 22:01:12,332 INFO L175 Difference]: Start difference. First operand has 7 places, 4 transitions, 19 flow. Second operand 6 states and 994 transitions. [2023-11-06 22:01:12,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 45 flow [2023-11-06 22:01:12,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 41 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:01:12,333 INFO L231 Difference]: Finished difference. Result has 14 places, 7 transitions, 51 flow [2023-11-06 22:01:12,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=51, PETRI_PLACES=14, PETRI_TRANSITIONS=7} [2023-11-06 22:01:12,334 INFO L281 CegarLoopForPetriNet]: 4 programPoint places, 10 predicate places. [2023-11-06 22:01:12,334 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 51 flow [2023-11-06 22:01:12,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 22:01:12,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:01:12,352 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-11-06 22:01:12,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:01:12,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:12,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 22:01:12,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1237263614, now seen corresponding path program 2 times [2023-11-06 22:01:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:12,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958265773] [2023-11-06 22:01:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:12,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:12,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958265773] [2023-11-06 22:01:12,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958265773] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:01:12,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109982539] [2023-11-06 22:01:12,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:01:12,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:12,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:12,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:01:12,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:01:12,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:01:12,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:01:12,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:01:12,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-06 22:01:12,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:01:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-06 22:01:13,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109982539] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:01:13,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:01:13,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 7 [2023-11-06 22:01:13,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896584335] [2023-11-06 22:01:13,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:01:13,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:01:13,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:13,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:01:13,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:01:13,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 270 [2023-11-06 22:01:13,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 7 transitions, 51 flow. Second operand has 9 states, 9 states have (on average 162.11111111111111) internal successors, (1459), 9 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states 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 22:01:13,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:01:13,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 270 [2023-11-06 22:01:13,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:01:13,188 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2023-11-06 22:01:13,189 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 22:01:13,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 7 events. 1/7 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 26. Up to 7 conditions per place. [2023-11-06 22:01:13,190 INFO L140 encePairwiseOnDemand]: 267/270 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2023-11-06 22:01:13,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 7 transitions, 61 flow [2023-11-06 22:01:13,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:01:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:01:13,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1297 transitions. [2023-11-06 22:01:13,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.600462962962963 [2023-11-06 22:01:13,196 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1297 transitions. [2023-11-06 22:01:13,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1297 transitions. [2023-11-06 22:01:13,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:01:13,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1297 transitions. [2023-11-06 22:01:13,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 162.125) internal successors, (1297), 8 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states 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 22:01:13,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 270.0) internal successors, (2430), 9 states have internal predecessors, (2430), 0 states have call successors, (0), 0 states 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 22:01:13,211 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 270.0) internal successors, (2430), 9 states have internal predecessors, (2430), 0 states have call successors, (0), 0 states 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 22:01:13,211 INFO L175 Difference]: Start difference. First operand has 14 places, 7 transitions, 51 flow. Second operand 8 states and 1297 transitions. [2023-11-06 22:01:13,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 7 transitions, 61 flow [2023-11-06 22:01:13,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 7 transitions, 35 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-11-06 22:01:13,212 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2023-11-06 22:01:13,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2023-11-06 22:01:13,213 INFO L281 CegarLoopForPetriNet]: 4 programPoint places, 11 predicate places. [2023-11-06 22:01:13,213 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2023-11-06 22:01:13,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 162.11111111111111) internal successors, (1459), 9 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states 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 22:01:13,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-06 22:01:13,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-06 22:01:13,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-06 22:01:13,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-06 22:01:13,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:13,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-06 22:01:13,424 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-06 22:01:13,427 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:01:13,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:01:13,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:01:13 BasicIcfg [2023-11-06 22:01:13,432 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:01:13,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:01:13,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:01:13,432 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:01:13,433 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:06" (3/4) ... [2023-11-06 22:01:13,434 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:01:13,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:01:13,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:01:13,443 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-06 22:01:13,444 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:01:13,444 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:01:13,444 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:01:13,522 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:01:13,522 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:01:13,522 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:01:13,523 INFO L158 Benchmark]: Toolchain (without parser) took 8513.46ms. Allocated memory was 153.1MB in the beginning and 207.6MB in the end (delta: 54.5MB). Free memory was 114.6MB in the beginning and 147.9MB in the end (delta: -33.3MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-11-06 22:01:13,524 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:01:13,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.49ms. Allocated memory is still 153.1MB. Free memory was 114.6MB in the beginning and 102.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:01:13,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.72ms. Allocated memory is still 153.1MB. Free memory was 102.9MB in the beginning and 100.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:01:13,525 INFO L158 Benchmark]: Boogie Preprocessor took 52.55ms. Allocated memory is still 153.1MB. Free memory was 100.8MB in the beginning and 99.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:01:13,525 INFO L158 Benchmark]: RCFGBuilder took 626.37ms. Allocated memory is still 153.1MB. Free memory was 99.4MB in the beginning and 82.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:01:13,526 INFO L158 Benchmark]: TraceAbstraction took 7374.82ms. Allocated memory was 153.1MB in the beginning and 207.6MB in the end (delta: 54.5MB). Free memory was 81.5MB in the beginning and 151.0MB in the end (delta: -69.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:01:13,526 INFO L158 Benchmark]: Witness Printer took 90.53ms. Allocated memory is still 207.6MB. Free memory was 151.0MB in the beginning and 147.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:01:13,528 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.49ms. Allocated memory is still 153.1MB. Free memory was 114.6MB in the beginning and 102.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.72ms. Allocated memory is still 153.1MB. Free memory was 102.9MB in the beginning and 100.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.55ms. Allocated memory is still 153.1MB. Free memory was 100.8MB in the beginning and 99.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 626.37ms. Allocated memory is still 153.1MB. Free memory was 99.4MB in the beginning and 82.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7374.82ms. Allocated memory was 153.1MB in the beginning and 207.6MB in the end (delta: 54.5MB). Free memory was 81.5MB in the beginning and 151.0MB in the end (delta: -69.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 90.53ms. Allocated memory is still 207.6MB. Free memory was 151.0MB in the beginning and 147.9MB in the end (delta: 3.1MB). 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: 4.8s, 63 PlacesBefore, 4 PlacesAfterwards, 66 TransitionsBefore, 4 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 7 FixpointIterations, 62 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 85 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: 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 5 procedures, 236 locations, 4 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: 7.2s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 11 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=3, InterpolantAutomatonStates: 20, 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, 0.6s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 3 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 12/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:01:13,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83d197c5-d332-4160-bd25-fbcabc0a587a/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