./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix011_tso.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_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/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_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix011_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/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_721deee6-f14e-4525-9881-709be2bf60f9/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 a4d86e141dde5935b04f74715dd2fbb14b0de9136d07674e0b6c5447ac95e0ef --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:10:35,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:10:35,198 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:10:35,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:10:35,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:10:35,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:10:35,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:10:35,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:10:35,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:10:35,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:10:35,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:10:35,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:10:35,251 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:10:35,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:10:35,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:10:35,253 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:10:35,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:10:35,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:10:35,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:10:35,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:10:35,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:10:35,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:10:35,271 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:10:35,272 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:10:35,272 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:10:35,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:10:35,273 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:10:35,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:10:35,275 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:10:35,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:10:35,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:10:35,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:10:35,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:10:35,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:10:35,277 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:10:35,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:10:35,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:10:35,279 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:10:35,279 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:10:35,279 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:10:35,280 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:10:35,280 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_721deee6-f14e-4525-9881-709be2bf60f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4d86e141dde5935b04f74715dd2fbb14b0de9136d07674e0b6c5447ac95e0ef [2023-11-06 22:10:35,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:10:35,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:10:35,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:10:35,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:10:35,683 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:10:35,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix011_tso.oepc.i [2023-11-06 22:10:38,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:10:39,154 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:10:39,154 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/sv-benchmarks/c/pthread-wmm/mix011_tso.oepc.i [2023-11-06 22:10:39,174 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/data/39a46aa88/b3f69b0648f445c3b2839d0929273364/FLAG01bff098d [2023-11-06 22:10:39,190 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/data/39a46aa88/b3f69b0648f445c3b2839d0929273364 [2023-11-06 22:10:39,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:10:39,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:10:39,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:10:39,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:10:39,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:10:39,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:39,204 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102177bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39, skipping insertion in model container [2023-11-06 22:10:39,204 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:39,258 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:10:39,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:10:39,739 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:10:39,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:10:39,864 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:10:39,865 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:10:39,873 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:10:39,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39 WrapperNode [2023-11-06 22:10:39,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:10:39,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:10:39,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:10:39,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:10:39,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:39,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:39,970 INFO L138 Inliner]: procedures = 176, calls = 61, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 161 [2023-11-06 22:10:39,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:10:39,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:10:39,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:10:39,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:10:39,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:39,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:39,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:39,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:40,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:40,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:40,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:40,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:40,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:10:40,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:10:40,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:10:40,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:10:40,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (1/1) ... [2023-11-06 22:10:40,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:10:40,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:10:40,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:10:40,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:10:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:10:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:10:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:10:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:10:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:10:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:10:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:10:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:10:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:10:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:10:40,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:10:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:10:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:10:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:10:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:10:40,204 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 22:10:40,386 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:10:40,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:10:40,754 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:10:40,979 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:10:40,979 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:10:40,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:10:40 BoogieIcfgContainer [2023-11-06 22:10:40,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:10:40,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:10:40,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:10:40,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:10:40,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:10:39" (1/3) ... [2023-11-06 22:10:40,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc8fda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:10:40, skipping insertion in model container [2023-11-06 22:10:40,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:39" (2/3) ... [2023-11-06 22:10:40,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc8fda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:10:40, skipping insertion in model container [2023-11-06 22:10:40,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:10:40" (3/3) ... [2023-11-06 22:10:40,992 INFO L112 eAbstractionObserver]: Analyzing ICFG mix011_tso.oepc.i [2023-11-06 22:10:41,000 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:10:41,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:10:41,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:10:41,011 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:10:41,105 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:10:41,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 126 transitions, 264 flow [2023-11-06 22:10:41,261 INFO L124 PetriNetUnfolderBase]: 3/123 cut-off events. [2023-11-06 22:10:41,262 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:10:41,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 123 events. 3/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2023-11-06 22:10:41,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 126 transitions, 264 flow [2023-11-06 22:10:41,278 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 123 transitions, 255 flow [2023-11-06 22:10:41,284 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:10:41,305 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 123 transitions, 255 flow [2023-11-06 22:10:41,311 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 123 transitions, 255 flow [2023-11-06 22:10:41,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 123 transitions, 255 flow [2023-11-06 22:10:41,361 INFO L124 PetriNetUnfolderBase]: 3/123 cut-off events. [2023-11-06 22:10:41,361 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:10:41,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 123 events. 3/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2023-11-06 22:10:41,366 INFO L119 LiptonReduction]: Number of co-enabled transitions 3224 [2023-11-06 22:10:47,604 INFO L134 LiptonReduction]: Checked pairs total: 11110 [2023-11-06 22:10:47,604 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-11-06 22:10:47,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:10:47,628 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;@6be00aac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:10:47,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-06 22:10:47,634 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:10:47,634 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 22:10:47,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:10:47,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:10:47,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:10:47,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 22:10:47,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash -419443627, now seen corresponding path program 1 times [2023-11-06 22:10:47,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:47,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347221914] [2023-11-06 22:10:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:47,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:10:47,949 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 22:10:47,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:10:47,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347221914] [2023-11-06 22:10:47,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347221914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:10:47,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:10:47,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:10:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918004736] [2023-11-06 22:10:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:10:47,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:10:47,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:10:47,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:10:47,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:10:48,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 235 [2023-11-06 22:10:48,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 22:10:48,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:10:48,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 235 [2023-11-06 22:10:48,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:10:48,485 INFO L124 PetriNetUnfolderBase]: 1164/1769 cut-off events. [2023-11-06 22:10:48,485 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-06 22:10:48,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3561 conditions, 1769 events. 1164/1769 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8458 event pairs, 1164 based on Foata normal form. 0/1381 useless extension candidates. Maximal degree in co-relation 3550. Up to 1725 conditions per place. [2023-11-06 22:10:48,506 INFO L140 encePairwiseOnDemand]: 231/235 looper letters, 20 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-11-06 22:10:48,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 103 flow [2023-11-06 22:10:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:10:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:10:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 333 transitions. [2023-11-06 22:10:48,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4723404255319149 [2023-11-06 22:10:48,522 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 333 transitions. [2023-11-06 22:10:48,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 333 transitions. [2023-11-06 22:10:48,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:10:48,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 333 transitions. [2023-11-06 22:10:48,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 22:10:48,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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 22:10:48,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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 22:10:48,540 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 67 flow. Second operand 3 states and 333 transitions. [2023-11-06 22:10:48,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 103 flow [2023-11-06 22:10:48,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:10:48,546 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 60 flow [2023-11-06 22:10:48,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-11-06 22:10:48,552 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -4 predicate places. [2023-11-06 22:10:48,552 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 60 flow [2023-11-06 22:10:48,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 22:10:48,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:10:48,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:10:48,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:10:48,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 22:10:48,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:48,555 INFO L85 PathProgramCache]: Analyzing trace with hash -419443626, now seen corresponding path program 1 times [2023-11-06 22:10:48,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:48,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425589533] [2023-11-06 22:10:48,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:48,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:10:48,647 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 22:10:48,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:10:48,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425589533] [2023-11-06 22:10:48,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425589533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:10:48,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:10:48,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:10:48,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420508142] [2023-11-06 22:10:48,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:10:48,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:10:48,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:10:48,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:10:48,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:10:48,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 235 [2023-11-06 22:10:48,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 22:10:48,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:10:48,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 235 [2023-11-06 22:10:48,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:10:48,892 INFO L124 PetriNetUnfolderBase]: 484/832 cut-off events. [2023-11-06 22:10:48,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:10:48,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1682 conditions, 832 events. 484/832 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3889 event pairs, 186 based on Foata normal form. 27/733 useless extension candidates. Maximal degree in co-relation 1676. Up to 693 conditions per place. [2023-11-06 22:10:48,900 INFO L140 encePairwiseOnDemand]: 227/235 looper letters, 30 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2023-11-06 22:10:48,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 158 flow [2023-11-06 22:10:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:10:48,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:10:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2023-11-06 22:10:48,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4921985815602837 [2023-11-06 22:10:48,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 347 transitions. [2023-11-06 22:10:48,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 347 transitions. [2023-11-06 22:10:48,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:10:48,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 347 transitions. [2023-11-06 22:10:48,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 22:10:48,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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 22:10:48,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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 22:10:48,921 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 60 flow. Second operand 3 states and 347 transitions. [2023-11-06 22:10:48,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 158 flow [2023-11-06 22:10:48,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 157 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:10:48,925 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 91 flow [2023-11-06 22:10:48,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2023-11-06 22:10:48,926 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2023-11-06 22:10:48,932 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 91 flow [2023-11-06 22:10:48,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 22:10:48,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:10:48,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:10:48,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:10:48,934 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 22:10:48,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:48,937 INFO L85 PathProgramCache]: Analyzing trace with hash -201411248, now seen corresponding path program 1 times [2023-11-06 22:10:48,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:48,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114905876] [2023-11-06 22:10:48,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:48,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:10:49,105 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 22:10:49,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:10:49,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114905876] [2023-11-06 22:10:49,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114905876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:10:49,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:10:49,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:10:49,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917097759] [2023-11-06 22:10:49,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:10:49,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:10:49,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:10:49,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:10:49,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:10:49,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 235 [2023-11-06 22:10:49,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 22:10:49,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:10:49,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 235 [2023-11-06 22:10:49,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:10:49,307 INFO L124 PetriNetUnfolderBase]: 171/350 cut-off events. [2023-11-06 22:10:49,307 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-06 22:10:49,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 350 events. 171/350 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1439 event pairs, 68 based on Foata normal form. 27/356 useless extension candidates. Maximal degree in co-relation 849. Up to 112 conditions per place. [2023-11-06 22:10:49,311 INFO L140 encePairwiseOnDemand]: 227/235 looper letters, 35 selfloop transitions, 7 changer transitions 3/50 dead transitions. [2023-11-06 22:10:49,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 235 flow [2023-11-06 22:10:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:10:49,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:10:49,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 461 transitions. [2023-11-06 22:10:49,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49042553191489363 [2023-11-06 22:10:49,314 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 461 transitions. [2023-11-06 22:10:49,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 461 transitions. [2023-11-06 22:10:49,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:10:49,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 461 transitions. [2023-11-06 22:10:49,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 22:10:49,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 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 22:10:49,321 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 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 22:10:49,321 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 91 flow. Second operand 4 states and 461 transitions. [2023-11-06 22:10:49,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 235 flow [2023-11-06 22:10:49,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 231 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:10:49,325 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 115 flow [2023-11-06 22:10:49,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-11-06 22:10:49,327 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-11-06 22:10:49,327 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 115 flow [2023-11-06 22:10:49,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 22:10:49,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:10:49,328 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 22:10:49,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:10:49,334 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 22:10:49,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1465328665, now seen corresponding path program 1 times [2023-11-06 22:10:49,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:49,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281268678] [2023-11-06 22:10:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:49,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:10:49,594 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 22:10:49,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:10:49,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281268678] [2023-11-06 22:10:49,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281268678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:10:49,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:10:49,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:10:49,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677790192] [2023-11-06 22:10:49,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:10:49,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:10:49,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:10:49,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:10:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:10:49,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 235 [2023-11-06 22:10:49,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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 22:10:49,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:10:49,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 235 [2023-11-06 22:10:49,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:10:49,761 INFO L124 PetriNetUnfolderBase]: 133/269 cut-off events. [2023-11-06 22:10:49,761 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2023-11-06 22:10:49,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 269 events. 133/269 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1115 event pairs, 56 based on Foata normal form. 12/272 useless extension candidates. Maximal degree in co-relation 694. Up to 108 conditions per place. [2023-11-06 22:10:49,763 INFO L140 encePairwiseOnDemand]: 227/235 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2023-11-06 22:10:49,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 201 flow [2023-11-06 22:10:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:10:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:10:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 555 transitions. [2023-11-06 22:10:49,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4723404255319149 [2023-11-06 22:10:49,767 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 555 transitions. [2023-11-06 22:10:49,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 555 transitions. [2023-11-06 22:10:49,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:10:49,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 555 transitions. [2023-11-06 22:10:49,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 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 22:10:49,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 235.0) internal successors, (1410), 6 states have internal predecessors, (1410), 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 22:10:49,775 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 235.0) internal successors, (1410), 6 states have internal predecessors, (1410), 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 22:10:49,775 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 115 flow. Second operand 5 states and 555 transitions. [2023-11-06 22:10:49,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 201 flow [2023-11-06 22:10:49,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 177 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-06 22:10:49,778 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2023-11-06 22:10:49,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2023-11-06 22:10:49,780 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -5 predicate places. [2023-11-06 22:10:49,780 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2023-11-06 22:10:49,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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 22:10:49,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-06 22:10:49,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-06 22:10:49,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-06 22:10:49,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-06 22:10:49,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-06 22:10:49,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-06 22:10:49,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-06 22:10:49,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-06 22:10:49,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-06 22:10:49,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-06 22:10:49,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-06 22:10:49,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-06 22:10:49,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-06 22:10:49,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-06 22:10:49,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-06 22:10:49,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:10:49,787 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 22:10:49,793 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:10:49,793 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:10:49,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:10:49 BasicIcfg [2023-11-06 22:10:49,798 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:10:49,799 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:10:49,799 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:10:49,799 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:10:49,799 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:10:40" (3/4) ... [2023-11-06 22:10:49,801 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:10:49,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:10:49,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:10:49,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 22:10:49,810 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-06 22:10:49,811 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:10:49,811 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:10:49,812 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:10:49,869 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:10:49,870 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:10:49,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:10:49,871 INFO L158 Benchmark]: Toolchain (without parser) took 10676.58ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 136.9MB in the beginning and 158.5MB in the end (delta: -21.6MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2023-11-06 22:10:49,871 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:10:49,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.84ms. Allocated memory is still 167.8MB. Free memory was 136.1MB in the beginning and 113.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:10:49,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.58ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 110.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:10:49,872 INFO L158 Benchmark]: Boogie Preprocessor took 49.58ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 108.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:10:49,873 INFO L158 Benchmark]: RCFGBuilder took 957.18ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 98.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:10:49,873 INFO L158 Benchmark]: TraceAbstraction took 8813.28ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 97.3MB in the beginning and 162.7MB in the end (delta: -65.3MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2023-11-06 22:10:49,874 INFO L158 Benchmark]: Witness Printer took 71.69ms. Allocated memory is still 243.3MB. Free memory was 162.7MB in the beginning and 158.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:10:49,876 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 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 678.84ms. Allocated memory is still 167.8MB. Free memory was 136.1MB in the beginning and 113.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.58ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 110.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.58ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 108.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 957.18ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 98.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8813.28ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 97.3MB in the beginning and 162.7MB in the end (delta: -65.3MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 71.69ms. Allocated memory is still 243.3MB. Free memory was 162.7MB in the beginning and 158.5MB 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: 6.3s, 130 PlacesBefore, 39 PlacesAfterwards, 123 TransitionsBefore, 29 TransitionsAfterwards, 3224 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 109 TotalNumberOfCompositions, 11110 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4393, independent: 4083, independent conditional: 0, independent unconditional: 4083, dependent: 310, dependent conditional: 0, dependent unconditional: 310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1828, independent: 1757, independent conditional: 0, independent unconditional: 1757, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4393, independent: 2326, independent conditional: 0, independent unconditional: 2326, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 1828, unknown conditional: 0, unknown unconditional: 1828] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 161, Positive conditional cache size: 0, Positive unconditional cache size: 161, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 160 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 6 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:10:49,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721deee6-f14e-4525-9881-709be2bf60f9/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