./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87c512ff7772c648d2c2d28b30bf4d136366c31440eeddc6ab833b392d36d780 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:38,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:39,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 10:49:39,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:39,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:39,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:39,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:39,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:39,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:49:39,151 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:49:39,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:39,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:39,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:39,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:39,156 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:39,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:39,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:49:39,157 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:39,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:49:39,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:39,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:39,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:49:39,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:39,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:49:39,176 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:49:39,177 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:49:39,177 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:39,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:49:39,178 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:39,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:39,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:39,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:49:39,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:39,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:39,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:39,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:39,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:49:39,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:49:39,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:49:39,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:39,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:39,183 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:49:39,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:39,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:39,184 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_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87c512ff7772c648d2c2d28b30bf4d136366c31440eeddc6ab833b392d36d780 [2023-11-26 10:49:39,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:39,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:39,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:39,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:39,583 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:39,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-wmm/mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-11-26 10:49:42,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:43,256 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:43,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/sv-benchmarks/c/pthread-wmm/mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-11-26 10:49:43,284 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/data/5d8498316/a886a8dab9cb4dbc9bff9c522de9194d/FLAG42b6f1986 [2023-11-26 10:49:43,308 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/data/5d8498316/a886a8dab9cb4dbc9bff9c522de9194d [2023-11-26 10:49:43,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:43,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:43,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:43,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:43,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:43,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d4b8c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43, skipping insertion in model container [2023-11-26 10:49:43,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:44,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:44,021 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:49:44,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:44,152 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:49:44,152 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:49:44,160 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:49:44,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44 WrapperNode [2023-11-26 10:49:44,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:44,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:44,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:49:44,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:49:44,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,261 INFO L138 Inliner]: procedures = 176, calls = 61, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 144 [2023-11-26 10:49:44,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:44,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:49:44,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:49:44,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:49:44,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,292 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,324 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-26 10:49:44,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:49:44,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:49:44,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:49:44,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:49:44,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (1/1) ... [2023-11-26 10:49:44,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:44,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:44,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:49:44,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:49:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:49:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:49:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:49:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:49:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 10:49:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:49:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:49:44,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:49:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-26 10:49:44,469 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-26 10:49:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-26 10:49:44,469 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-26 10:49:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-26 10:49:44,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-26 10:49:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:49:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:49:44,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:49:44,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:49:44,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 10:49:44,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:49:44,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:49:44,474 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:49:44,669 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:49:44,671 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:49:45,081 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:49:45,370 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:49:45,371 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:49:45,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:45 BoogieIcfgContainer [2023-11-26 10:49:45,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:49:45,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:49:45,374 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:49:45,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:49:45,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:43" (1/3) ... [2023-11-26 10:49:45,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fdacf1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:45, skipping insertion in model container [2023-11-26 10:49:45,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:44" (2/3) ... [2023-11-26 10:49:45,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fdacf1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:45, skipping insertion in model container [2023-11-26 10:49:45,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:45" (3/3) ... [2023-11-26 10:49:45,380 INFO L112 eAbstractionObserver]: Analyzing ICFG mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2023-11-26 10:49:45,389 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:49:45,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:49:45,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-26 10:49:45,400 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:49:45,452 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:49:45,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 42 transitions, 96 flow [2023-11-26 10:49:45,521 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2023-11-26 10:49:45,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:49:45,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 94 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 10:49:45,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 42 transitions, 96 flow [2023-11-26 10:49:45,527 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 39 transitions, 87 flow [2023-11-26 10:49:45,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:49:45,543 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17889954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:49:45,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-26 10:49:45,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:49:45,555 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-26 10:49:45,555 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:49:45,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:45,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:45,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 10:49:45,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:45,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1436411490, now seen corresponding path program 1 times [2023-11-26 10:49:45,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:45,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164792769] [2023-11-26 10:49:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:45,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:45,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:45,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:45,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164792769] [2023-11-26 10:49:45,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164792769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:45,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:45,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:49:45,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628973347] [2023-11-26 10:49:45,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:45,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:46,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:46,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:46,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 42 [2023-11-26 10:49:46,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-26 10:49:46,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:46,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 42 [2023-11-26 10:49:46,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:46,950 INFO L124 PetriNetUnfolderBase]: 2398/3580 cut-off events. [2023-11-26 10:49:46,950 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-26 10:49:46,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7178 conditions, 3580 events. 2398/3580 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 20604 event pairs, 838 based on Foata normal form. 0/2843 useless extension candidates. Maximal degree in co-relation 7167. Up to 3251 conditions per place. [2023-11-26 10:49:46,996 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 39 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2023-11-26 10:49:46,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 211 flow [2023-11-26 10:49:46,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:47,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2023-11-26 10:49:47,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2023-11-26 10:49:47,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 94 transitions. [2023-11-26 10:49:47,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 94 transitions. [2023-11-26 10:49:47,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:47,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 94 transitions. [2023-11-26 10:49:47,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-11-26 10:49:47,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2023-11-26 10:49:47,026 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2023-11-26 10:49:47,028 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 87 flow. Second operand 3 states and 94 transitions. [2023-11-26 10:49:47,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 211 flow [2023-11-26 10:49:47,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 55 transitions, 206 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 10:49:47,041 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 120 flow [2023-11-26 10:49:47,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2023-11-26 10:49:47,049 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2023-11-26 10:49:47,049 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 120 flow [2023-11-26 10:49:47,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-26 10:49:47,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:47,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:47,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:49:47,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 10:49:47,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:47,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2140006866, now seen corresponding path program 1 times [2023-11-26 10:49:47,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:47,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977573566] [2023-11-26 10:49:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:47,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:47,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:47,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977573566] [2023-11-26 10:49:47,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977573566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:47,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:47,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:47,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912788108] [2023-11-26 10:49:47,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:47,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:49:47,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:47,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:49:47,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:49:47,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 42 [2023-11-26 10:49:47,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2023-11-26 10:49:47,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:47,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 42 [2023-11-26 10:49:47,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:47,869 INFO L124 PetriNetUnfolderBase]: 1703/2567 cut-off events. [2023-11-26 10:49:47,869 INFO L125 PetriNetUnfolderBase]: For 197/197 co-relation queries the response was YES. [2023-11-26 10:49:47,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5954 conditions, 2567 events. 1703/2567 cut-off events. For 197/197 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14396 event pairs, 529 based on Foata normal form. 0/2240 useless extension candidates. Maximal degree in co-relation 5943. Up to 2237 conditions per place. [2023-11-26 10:49:47,896 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 36 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2023-11-26 10:49:47,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 218 flow [2023-11-26 10:49:47,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:49:47,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 10:49:47,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2023-11-26 10:49:47,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6130952380952381 [2023-11-26 10:49:47,902 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 103 transitions. [2023-11-26 10:49:47,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 103 transitions. [2023-11-26 10:49:47,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:47,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 103 transitions. [2023-11-26 10:49:47,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2023-11-26 10:49:47,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 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) [2023-11-26 10:49:47,912 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 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) [2023-11-26 10:49:47,912 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 120 flow. Second operand 4 states and 103 transitions. [2023-11-26 10:49:47,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 218 flow [2023-11-26 10:49:47,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 52 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:49:47,918 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 112 flow [2023-11-26 10:49:47,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2023-11-26 10:49:47,925 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-11-26 10:49:47,925 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 112 flow [2023-11-26 10:49:47,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2023-11-26 10:49:47,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:47,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:47,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:49:47,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 10:49:47,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:47,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2140006865, now seen corresponding path program 1 times [2023-11-26 10:49:47,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:47,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727951943] [2023-11-26 10:49:47,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:47,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:48,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:48,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727951943] [2023-11-26 10:49:48,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727951943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:48,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:48,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:48,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140746737] [2023-11-26 10:49:48,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:48,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:49:48,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:48,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:49:48,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:49:48,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 42 [2023-11-26 10:49:48,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2023-11-26 10:49:48,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:48,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 42 [2023-11-26 10:49:48,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:48,570 INFO L124 PetriNetUnfolderBase]: 1254/1920 cut-off events. [2023-11-26 10:49:48,570 INFO L125 PetriNetUnfolderBase]: For 397/397 co-relation queries the response was YES. [2023-11-26 10:49:48,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4365 conditions, 1920 events. 1254/1920 cut-off events. For 397/397 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10429 event pairs, 216 based on Foata normal form. 0/1824 useless extension candidates. Maximal degree in co-relation 4353. Up to 893 conditions per place. [2023-11-26 10:49:48,589 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 47 selfloop transitions, 7 changer transitions 3/69 dead transitions. [2023-11-26 10:49:48,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 69 transitions, 298 flow [2023-11-26 10:49:48,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:49:48,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 10:49:48,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2023-11-26 10:49:48,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2023-11-26 10:49:48,596 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 120 transitions. [2023-11-26 10:49:48,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 120 transitions. [2023-11-26 10:49:48,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:48,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 120 transitions. [2023-11-26 10:49:48,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2023-11-26 10:49:48,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 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) [2023-11-26 10:49:48,601 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 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) [2023-11-26 10:49:48,601 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 112 flow. Second operand 4 states and 120 transitions. [2023-11-26 10:49:48,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 69 transitions, 298 flow [2023-11-26 10:49:48,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 69 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:48,606 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 133 flow [2023-11-26 10:49:48,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-26 10:49:48,608 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2023-11-26 10:49:48,608 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 133 flow [2023-11-26 10:49:48,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2023-11-26 10:49:48,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:48,609 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, 1, 1, 1, 1] [2023-11-26 10:49:48,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:49:48,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 10:49:48,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:48,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2103593192, now seen corresponding path program 1 times [2023-11-26 10:49:48,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:48,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726104010] [2023-11-26 10:49:48,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:48,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:48,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:48,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:48,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726104010] [2023-11-26 10:49:48,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726104010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:48,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:48,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:48,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925372175] [2023-11-26 10:49:48,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:48,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:49:48,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:48,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:49:48,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:49:48,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 42 [2023-11-26 10:49:48,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-11-26 10:49:48,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:48,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 42 [2023-11-26 10:49:48,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:49,232 INFO L124 PetriNetUnfolderBase]: 1034/1600 cut-off events. [2023-11-26 10:49:49,232 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2023-11-26 10:49:49,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4059 conditions, 1600 events. 1034/1600 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9032 event pairs, 166 based on Foata normal form. 60/1624 useless extension candidates. Maximal degree in co-relation 4046. Up to 698 conditions per place. [2023-11-26 10:49:49,241 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2023-11-26 10:49:49,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 63 transitions, 277 flow [2023-11-26 10:49:49,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:49:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 10:49:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2023-11-26 10:49:49,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2023-11-26 10:49:49,244 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 129 transitions. [2023-11-26 10:49:49,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 129 transitions. [2023-11-26 10:49:49,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:49,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 129 transitions. [2023-11-26 10:49:49,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2023-11-26 10:49:49,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2023-11-26 10:49:49,247 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2023-11-26 10:49:49,247 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 133 flow. Second operand 5 states and 129 transitions. [2023-11-26 10:49:49,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 63 transitions, 277 flow [2023-11-26 10:49:49,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 253 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-26 10:49:49,254 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-11-26 10:49:49,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-11-26 10:49:49,257 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2023-11-26 10:49:49,257 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-11-26 10:49:49,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-11-26 10:49:49,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-26 10:49:49,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-26 10:49:49,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-26 10:49:49,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-26 10:49:49,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-26 10:49:49,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-26 10:49:49,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-26 10:49:49,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-26 10:49:49,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-26 10:49:49,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-26 10:49:49,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-26 10:49:49,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-26 10:49:49,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-26 10:49:49,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-26 10:49:49,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-26 10:49:49,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:49:49,269 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:49:49,275 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:49:49,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:49:49,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:49:49 BasicIcfg [2023-11-26 10:49:49,288 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:49:49,290 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:49:49,290 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:49:49,290 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:49:49,291 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:45" (3/4) ... [2023-11-26 10:49:49,292 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:49:49,295 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-26 10:49:49,295 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-26 10:49:49,295 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-26 10:49:49,305 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 78 nodes and edges [2023-11-26 10:49:49,305 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-26 10:49:49,305 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-26 10:49:49,306 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 10:49:49,420 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:49:49,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:49:49,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:49:49,422 INFO L158 Benchmark]: Toolchain (without parser) took 6105.29ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 141.5MB in the beginning and 61.2MB in the end (delta: 80.3MB). Peak memory consumption was 116.9MB. Max. memory is 16.1GB. [2023-11-26 10:49:49,422 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory was 107.4MB in the beginning and 107.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:49,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.24ms. Allocated memory is still 172.0MB. Free memory was 141.5MB in the beginning and 117.3MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:49,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.73ms. Allocated memory is still 172.0MB. Free memory was 117.3MB in the beginning and 115.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:49,423 INFO L158 Benchmark]: Boogie Preprocessor took 112.67ms. Allocated memory is still 172.0MB. Free memory was 115.0MB in the beginning and 111.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:49:49,423 INFO L158 Benchmark]: RCFGBuilder took 994.95ms. Allocated memory is still 172.0MB. Free memory was 111.5MB in the beginning and 120.3MB in the end (delta: -8.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:49,424 INFO L158 Benchmark]: TraceAbstraction took 3914.70ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 120.3MB in the beginning and 66.5MB in the end (delta: 53.9MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. [2023-11-26 10:49:49,424 INFO L158 Benchmark]: Witness Printer took 131.32ms. Allocated memory is still 207.6MB. Free memory was 66.5MB in the beginning and 61.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:49:49,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory was 107.4MB in the beginning and 107.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.24ms. Allocated memory is still 172.0MB. Free memory was 141.5MB in the beginning and 117.3MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.73ms. Allocated memory is still 172.0MB. Free memory was 117.3MB in the beginning and 115.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.67ms. Allocated memory is still 172.0MB. Free memory was 115.0MB in the beginning and 111.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 994.95ms. Allocated memory is still 172.0MB. Free memory was 111.5MB in the beginning and 120.3MB in the end (delta: -8.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3914.70ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 120.3MB in the beginning and 66.5MB in the end (delta: 53.9MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. * Witness Printer took 131.32ms. Allocated memory is still 207.6MB. Free memory was 66.5MB in the beginning and 61.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: 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: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: 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, 76 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: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1 mSDtfsCounter, 273 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=133occurred 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, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 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! [2023-11-26 10:49:49,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb8ee70-7484-451d-a631-e20afeac18e0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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