./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix042.oepc.i --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_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/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_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix042.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/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_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/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 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:56:10,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:56:10,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:56:10,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:56:10,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:56:10,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:56:10,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:56:10,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:56:10,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:56:10,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:56:10,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:56:10,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:56:10,640 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:56:10,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:56:10,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:56:10,643 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:56:10,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:56:10,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:56:10,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:56:10,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:56:10,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:56:10,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:56:10,648 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:56:10,648 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:56:10,649 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:56:10,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:56:10,649 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:56:10,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:56:10,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:56:10,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:56:10,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:10,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:56:10,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:56:10,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:56:10,654 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:56:10,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:56:10,655 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:56:10,655 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:56:10,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:56:10,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:56:10,656 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:56:10,656 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_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea [2023-11-06 21:56:10,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:56:10,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:56:10,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:56:10,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:56:10,975 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:56:10,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix042.oepc.i [2023-11-06 21:56:14,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:56:14,398 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:56:14,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/sv-benchmarks/c/pthread-wmm/mix042.oepc.i [2023-11-06 21:56:14,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/data/0bedd115c/65fca7bb32274488a81d4980e2784c66/FLAG73ea05c1e [2023-11-06 21:56:14,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/data/0bedd115c/65fca7bb32274488a81d4980e2784c66 [2023-11-06 21:56:14,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:56:14,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:56:14,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:14,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:56:14,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:56:14,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:14" (1/1) ... [2023-11-06 21:56:14,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5aaef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:14, skipping insertion in model container [2023-11-06 21:56:14,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:14" (1/1) ... [2023-11-06 21:56:14,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:56:15,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:15,027 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:56:15,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:15,125 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:56:15,125 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:56:15,133 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:56:15,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15 WrapperNode [2023-11-06 21:56:15,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:15,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:15,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:56:15,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:56:15,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,191 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 137 [2023-11-06 21:56:15,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:15,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:56:15,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:56:15,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:56:15,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:56:15,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:56:15,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:56:15,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:56:15,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (1/1) ... [2023-11-06 21:56:15,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:15,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:15,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:56:15,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:56:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:56:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:56:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:56:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:56:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:56:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:56:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:56:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:56:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:56:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 21:56:15,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 21:56:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:56:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:56:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:56:15,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:56:15,326 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 21:56:15,494 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:56:15,496 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:56:15,968 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:56:16,148 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:56:16,148 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:56:16,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:16 BoogieIcfgContainer [2023-11-06 21:56:16,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:56:16,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:56:16,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:56:16,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:56:16,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:14" (1/3) ... [2023-11-06 21:56:16,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94b99cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:16, skipping insertion in model container [2023-11-06 21:56:16,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:15" (2/3) ... [2023-11-06 21:56:16,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94b99cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:16, skipping insertion in model container [2023-11-06 21:56:16,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:16" (3/3) ... [2023-11-06 21:56:16,160 INFO L112 eAbstractionObserver]: Analyzing ICFG mix042.oepc.i [2023-11-06 21:56:16,169 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:56:16,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:56:16,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 21:56:16,181 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:56:16,247 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:56:16,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 124 transitions, 260 flow [2023-11-06 21:56:16,374 INFO L124 PetriNetUnfolderBase]: 3/121 cut-off events. [2023-11-06 21:56:16,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:16,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 3/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-06 21:56:16,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 124 transitions, 260 flow [2023-11-06 21:56:16,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 121 transitions, 251 flow [2023-11-06 21:56:16,392 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:56:16,410 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 121 transitions, 251 flow [2023-11-06 21:56:16,414 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 121 transitions, 251 flow [2023-11-06 21:56:16,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 121 transitions, 251 flow [2023-11-06 21:56:16,461 INFO L124 PetriNetUnfolderBase]: 3/121 cut-off events. [2023-11-06 21:56:16,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:16,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 3/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-06 21:56:16,467 INFO L119 LiptonReduction]: Number of co-enabled transitions 3082 [2023-11-06 21:56:21,026 INFO L134 LiptonReduction]: Checked pairs total: 9236 [2023-11-06 21:56:21,027 INFO L136 LiptonReduction]: Total number of compositions: 102 [2023-11-06 21:56:21,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:56:21,050 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;@232866ab, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:56:21,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-06 21:56:21,059 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:56:21,059 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 21:56:21,059 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:21,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:21,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:56:21,061 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 21:56:21,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:21,067 INFO L85 PathProgramCache]: Analyzing trace with hash -739134820, now seen corresponding path program 1 times [2023-11-06 21:56:21,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:21,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652471370] [2023-11-06 21:56:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:21,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:21,490 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 21:56:21,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:21,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652471370] [2023-11-06 21:56:21,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652471370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:21,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:21,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:56:21,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520271105] [2023-11-06 21:56:21,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:21,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:21,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:21,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:21,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:21,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 226 [2023-11-06 21:56:21,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 21:56:21,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:21,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 226 [2023-11-06 21:56:21,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:22,234 INFO L124 PetriNetUnfolderBase]: 1395/2159 cut-off events. [2023-11-06 21:56:22,235 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-06 21:56:22,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4348 conditions, 2159 events. 1395/2159 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10723 event pairs, 463 based on Foata normal form. 0/1788 useless extension candidates. Maximal degree in co-relation 4337. Up to 1562 conditions per place. [2023-11-06 21:56:22,265 INFO L140 encePairwiseOnDemand]: 215/226 looper letters, 40 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2023-11-06 21:56:22,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 197 flow [2023-11-06 21:56:22,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:22,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:56:22,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2023-11-06 21:56:22,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.523598820058997 [2023-11-06 21:56:22,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2023-11-06 21:56:22,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2023-11-06 21:56:22,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:22,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2023-11-06 21:56:22,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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 21:56:22,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 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 21:56:22,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 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 21:56:22,307 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 69 flow. Second operand 3 states and 355 transitions. [2023-11-06 21:56:22,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 197 flow [2023-11-06 21:56:22,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 47 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:56:22,313 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2023-11-06 21:56:22,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2023-11-06 21:56:22,319 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-11-06 21:56:22,319 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2023-11-06 21:56:22,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 21:56:22,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:22,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:22,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:56:22,321 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-06 21:56:22,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:22,322 INFO L85 PathProgramCache]: Analyzing trace with hash -86253423, now seen corresponding path program 1 times [2023-11-06 21:56:22,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:22,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317909098] [2023-11-06 21:56:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:22,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:22,543 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 21:56:22,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:22,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317909098] [2023-11-06 21:56:22,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317909098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:22,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:22,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:22,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770442952] [2023-11-06 21:56:22,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:22,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:56:22,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:22,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:56:22,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:56:22,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 226 [2023-11-06 21:56:22,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 21:56:22,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:22,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 226 [2023-11-06 21:56:22,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:23,006 INFO L124 PetriNetUnfolderBase]: 1118/1718 cut-off events. [2023-11-06 21:56:23,007 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-06 21:56:23,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4118 conditions, 1718 events. 1118/1718 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8188 event pairs, 403 based on Foata normal form. 0/1556 useless extension candidates. Maximal degree in co-relation 4107. Up to 1120 conditions per place. [2023-11-06 21:56:23,025 INFO L140 encePairwiseOnDemand]: 219/226 looper letters, 37 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-11-06 21:56:23,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 204 flow [2023-11-06 21:56:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:56:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:56:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2023-11-06 21:56:23,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49557522123893805 [2023-11-06 21:56:23,034 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 448 transitions. [2023-11-06 21:56:23,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 448 transitions. [2023-11-06 21:56:23,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:23,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 448 transitions. [2023-11-06 21:56:23,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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 21:56:23,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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 21:56:23,050 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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 21:56:23,050 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 4 states and 448 transitions. [2023-11-06 21:56:23,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 204 flow [2023-11-06 21:56:23,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 44 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:56:23,057 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 92 flow [2023-11-06 21:56:23,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-11-06 21:56:23,059 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-11-06 21:56:23,066 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 92 flow [2023-11-06 21:56:23,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 21:56:23,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:23,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:23,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:56:23,068 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 21:56:23,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:23,070 INFO L85 PathProgramCache]: Analyzing trace with hash -86253422, now seen corresponding path program 1 times [2023-11-06 21:56:23,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:23,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702274298] [2023-11-06 21:56:23,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:23,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:23,226 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 21:56:23,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:23,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702274298] [2023-11-06 21:56:23,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702274298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:23,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:23,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:23,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802350032] [2023-11-06 21:56:23,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:23,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:56:23,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:23,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:56:23,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:56:23,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 226 [2023-11-06 21:56:23,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 21:56:23,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:23,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 226 [2023-11-06 21:56:23,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:23,631 INFO L124 PetriNetUnfolderBase]: 907/1388 cut-off events. [2023-11-06 21:56:23,631 INFO L125 PetriNetUnfolderBase]: For 433/433 co-relation queries the response was YES. [2023-11-06 21:56:23,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3291 conditions, 1388 events. 907/1388 cut-off events. For 433/433 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6406 event pairs, 368 based on Foata normal form. 0/1360 useless extension candidates. Maximal degree in co-relation 3279. Up to 573 conditions per place. [2023-11-06 21:56:23,645 INFO L140 encePairwiseOnDemand]: 219/226 looper letters, 47 selfloop transitions, 7 changer transitions 3/60 dead transitions. [2023-11-06 21:56:23,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 60 transitions, 280 flow [2023-11-06 21:56:23,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:56:23,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:56:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 464 transitions. [2023-11-06 21:56:23,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5132743362831859 [2023-11-06 21:56:23,649 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 464 transitions. [2023-11-06 21:56:23,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 464 transitions. [2023-11-06 21:56:23,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:23,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 464 transitions. [2023-11-06 21:56:23,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 21:56:23,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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 21:56:23,655 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 226.0) internal successors, (1130), 5 states have internal predecessors, (1130), 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 21:56:23,656 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 92 flow. Second operand 4 states and 464 transitions. [2023-11-06 21:56:23,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 60 transitions, 280 flow [2023-11-06 21:56:23,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 60 transitions, 275 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:56:23,660 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 113 flow [2023-11-06 21:56:23,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, 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=113, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-11-06 21:56:23,662 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-11-06 21:56:23,662 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 113 flow [2023-11-06 21:56:23,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 21:56:23,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:23,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:23,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:56:23,669 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 21:56:23,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:23,670 INFO L85 PathProgramCache]: Analyzing trace with hash 99071893, now seen corresponding path program 1 times [2023-11-06 21:56:23,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:23,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472175068] [2023-11-06 21:56:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:23,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:23,923 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 21:56:23,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:23,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472175068] [2023-11-06 21:56:23,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472175068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:23,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:23,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:56:23,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559052803] [2023-11-06 21:56:23,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:23,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:56:23,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:23,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:56:23,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:56:23,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 226 [2023-11-06 21:56:23,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 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 21:56:23,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:23,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 226 [2023-11-06 21:56:23,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:56:24,369 INFO L124 PetriNetUnfolderBase]: 881/1342 cut-off events. [2023-11-06 21:56:24,370 INFO L125 PetriNetUnfolderBase]: For 918/918 co-relation queries the response was YES. [2023-11-06 21:56:24,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3557 conditions, 1342 events. 881/1342 cut-off events. For 918/918 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6237 event pairs, 368 based on Foata normal form. 15/1344 useless extension candidates. Maximal degree in co-relation 3544. Up to 573 conditions per place. [2023-11-06 21:56:24,377 INFO L140 encePairwiseOnDemand]: 219/226 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2023-11-06 21:56:24,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 259 flow [2023-11-06 21:56:24,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:56:24,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:56:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2023-11-06 21:56:24,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4946902654867257 [2023-11-06 21:56:24,381 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2023-11-06 21:56:24,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2023-11-06 21:56:24,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:56:24,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2023-11-06 21:56:24,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 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 21:56:24,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 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 21:56:24,390 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 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 21:56:24,390 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 113 flow. Second operand 5 states and 559 transitions. [2023-11-06 21:56:24,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 259 flow [2023-11-06 21:56:24,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 235 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-06 21:56:24,402 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-11-06 21:56:24,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-11-06 21:56:24,404 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2023-11-06 21:56:24,405 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-11-06 21:56:24,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 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 21:56:24,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-06 21:56:24,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-06 21:56:24,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-06 21:56:24,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-06 21:56:24,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-06 21:56:24,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-06 21:56:24,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-06 21:56:24,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-06 21:56:24,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-06 21:56:24,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-06 21:56:24,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-06 21:56:24,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-06 21:56:24,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-06 21:56:24,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-06 21:56:24,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-06 21:56:24,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:56:24,419 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 21:56:24,426 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:56:24,426 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:56:24,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:56:24 BasicIcfg [2023-11-06 21:56:24,431 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:56:24,431 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:56:24,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:56:24,432 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:56:24,432 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:16" (3/4) ... [2023-11-06 21:56:24,434 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:56:24,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 21:56:24,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 21:56:24,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 21:56:24,446 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-06 21:56:24,447 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 21:56:24,447 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:56:24,448 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:56:24,514 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:56:24,515 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:56:24,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:56:24,516 INFO L158 Benchmark]: Toolchain (without parser) took 10066.38ms. Allocated memory was 195.0MB in the beginning and 283.1MB in the end (delta: 88.1MB). Free memory was 153.7MB in the beginning and 142.9MB in the end (delta: 10.8MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2023-11-06 21:56:24,517 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:56:24,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.82ms. Allocated memory is still 195.0MB. Free memory was 153.3MB in the beginning and 130.0MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 21:56:24,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.78ms. Allocated memory is still 195.0MB. Free memory was 130.0MB in the beginning and 127.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:56:24,518 INFO L158 Benchmark]: Boogie Preprocessor took 37.68ms. Allocated memory is still 195.0MB. Free memory was 127.4MB in the beginning and 125.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:56:24,518 INFO L158 Benchmark]: RCFGBuilder took 919.95ms. Allocated memory is still 195.0MB. Free memory was 125.3MB in the beginning and 141.0MB in the end (delta: -15.6MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2023-11-06 21:56:24,519 INFO L158 Benchmark]: TraceAbstraction took 8277.98ms. Allocated memory was 195.0MB in the beginning and 283.1MB in the end (delta: 88.1MB). Free memory was 140.5MB in the beginning and 146.1MB in the end (delta: -5.6MB). Peak memory consumption was 118.4MB. Max. memory is 16.1GB. [2023-11-06 21:56:24,519 INFO L158 Benchmark]: Witness Printer took 83.96ms. Allocated memory is still 283.1MB. Free memory was 146.1MB in the beginning and 142.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:56:24,522 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.82ms. Allocated memory is still 195.0MB. Free memory was 153.3MB in the beginning and 130.0MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.78ms. Allocated memory is still 195.0MB. Free memory was 130.0MB in the beginning and 127.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.68ms. Allocated memory is still 195.0MB. Free memory was 127.4MB in the beginning and 125.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 919.95ms. Allocated memory is still 195.0MB. Free memory was 125.3MB in the beginning and 141.0MB in the end (delta: -15.6MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8277.98ms. Allocated memory was 195.0MB in the beginning and 283.1MB in the end (delta: 88.1MB). Free memory was 140.5MB in the beginning and 146.1MB in the end (delta: -5.6MB). Peak memory consumption was 118.4MB. Max. memory is 16.1GB. * Witness Printer took 83.96ms. Allocated memory is still 283.1MB. Free memory was 146.1MB in the beginning and 142.9MB 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: 4.6s, 128 PlacesBefore, 39 PlacesAfterwards, 121 TransitionsBefore, 30 TransitionsAfterwards, 3082 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 102 TotalNumberOfCompositions, 9236 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3908, independent: 3658, independent conditional: 0, independent unconditional: 3658, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1672, independent: 1630, independent conditional: 0, independent unconditional: 1630, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3908, independent: 2028, independent conditional: 0, independent unconditional: 2028, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 1672, unknown conditional: 0, unknown unconditional: 1672] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: 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, 157 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: 8.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 11 mSDtfsCounter, 275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 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 21:56:24,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6f70f-80e9-40bf-afa9-1a6b8e0e4274/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