./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/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_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/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_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/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 48c4b734419752ee9918164f01e542b34e2482d2668432fb42f6f1192b7f0b6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:49:48,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:48,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:49:48,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:48,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:48,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:48,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:48,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:48,454 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:49:48,459 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:49:48,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:48,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:48,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:48,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:48,468 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:48,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:48,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:48,469 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:49:48,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:49:48,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:49:48,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:48,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:48,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:48,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:48,473 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:49:48,473 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:49:48,474 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:49:48,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:48,474 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:48,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:48,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:48,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:49:48,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:48,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:48,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:48,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:48,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:48,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:49:48,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:49:48,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:48,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:48,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:48,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:48,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:48,481 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_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48c4b734419752ee9918164f01e542b34e2482d2668432fb42f6f1192b7f0b6a [2023-11-26 11:49:48,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:48,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:48,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:48,835 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:48,836 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:48,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-wmm/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-26 11:49:51,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:49:52,251 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:49:52,251 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/sv-benchmarks/c/pthread-wmm/safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-26 11:49:52,271 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/data/643824c8e/b32753cbb95c4d1f8c7c31bf0a346feb/FLAGadc9b4a3a [2023-11-26 11:49:52,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/data/643824c8e/b32753cbb95c4d1f8c7c31bf0a346feb [2023-11-26 11:49:52,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:49:52,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:49:52,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:52,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:49:52,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:49:52,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:52,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7adbca44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52, skipping insertion in model container [2023-11-26 11:49:52,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:52,371 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:52,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:52,846 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:52,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:52,938 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:52,938 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:52,946 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:52,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52 WrapperNode [2023-11-26 11:49:52,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:52,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:52,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:52,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:52,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:52,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,039 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 119 [2023-11-26 11:49:53,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:53,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:53,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:53,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:53,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,057 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,104 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-26 11:49:53,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:53,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:53,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:53,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:53,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (1/1) ... [2023-11-26 11:49:53,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:53,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:53,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:53,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:49:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:49:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:49:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:49:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:49:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:49:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-26 11:49:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-26 11:49:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-26 11:49:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-26 11:49:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:49:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:49:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:49:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:49:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:53,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:53,249 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 11:49:53,463 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:53,474 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:53,814 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:54,133 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:54,133 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:49:54,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:54 BoogieIcfgContainer [2023-11-26 11:49:54,135 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:54,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:54,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:54,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:54,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:49:52" (1/3) ... [2023-11-26 11:49:54,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634ed1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:54, skipping insertion in model container [2023-11-26 11:49:54,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:52" (2/3) ... [2023-11-26 11:49:54,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634ed1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:54, skipping insertion in model container [2023-11-26 11:49:54,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:54" (3/3) ... [2023-11-26 11:49:54,147 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-26 11:49:54,157 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:49:54,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:54,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 11:49:54,169 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:49:54,227 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:49:54,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 29 transitions, 66 flow [2023-11-26 11:49:54,294 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2023-11-26 11:49:54,294 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:49:54,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 0/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 57 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 11:49:54,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 29 transitions, 66 flow [2023-11-26 11:49:54,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 27 transitions, 60 flow [2023-11-26 11:49:54,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:54,329 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;@3568ecd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:54,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-26 11:49:54,346 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:49:54,346 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-26 11:49:54,346 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:49:54,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:49:54,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:54,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-26 11:49:54,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:54,354 INFO L85 PathProgramCache]: Analyzing trace with hash 108895415, now seen corresponding path program 1 times [2023-11-26 11:49:54,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:54,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753477592] [2023-11-26 11:49:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:54,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,864 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 11:49:54,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:54,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753477592] [2023-11-26 11:49:54,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753477592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:54,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:54,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:49:54,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377685337] [2023-11-26 11:49:54,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:54,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:54,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:54,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:54,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:54,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2023-11-26 11:49:54,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 11:49:54,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:49:54,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2023-11-26 11:49:54,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:49:55,129 INFO L124 PetriNetUnfolderBase]: 194/363 cut-off events. [2023-11-26 11:49:55,129 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:49:55,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 363 events. 194/363 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1691 event pairs, 62 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 710. Up to 277 conditions per place. [2023-11-26 11:49:55,139 INFO L140 encePairwiseOnDemand]: 22/29 looper letters, 25 selfloop transitions, 3 changer transitions 2/38 dead transitions. [2023-11-26 11:49:55,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 145 flow [2023-11-26 11:49:55,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:55,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:49:55,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2023-11-26 11:49:55,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.735632183908046 [2023-11-26 11:49:55,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 64 transitions. [2023-11-26 11:49:55,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 64 transitions. [2023-11-26 11:49:55,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:49:55,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 64 transitions. [2023-11-26 11:49:55,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 11:49:55,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 11:49:55,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 11:49:55,166 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 60 flow. Second operand 3 states and 64 transitions. [2023-11-26 11:49:55,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 145 flow [2023-11-26 11:49:55,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:49:55,173 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 75 flow [2023-11-26 11:49:55,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2023-11-26 11:49:55,180 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-11-26 11:49:55,180 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 75 flow [2023-11-26 11:49:55,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 11:49:55,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:49:55,181 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:55,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:49:55,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-26 11:49:55,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:55,182 INFO L85 PathProgramCache]: Analyzing trace with hash -108802021, now seen corresponding path program 1 times [2023-11-26 11:49:55,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:55,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86935496] [2023-11-26 11:49:55,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:55,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:55,402 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 11:49:55,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:55,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86935496] [2023-11-26 11:49:55,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86935496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:55,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:55,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:49:55,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280799286] [2023-11-26 11:49:55,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:55,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:49:55,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:49:55,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:49:55,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2023-11-26 11:49:55,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 11:49:55,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:49:55,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2023-11-26 11:49:55,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:49:55,565 INFO L124 PetriNetUnfolderBase]: 132/261 cut-off events. [2023-11-26 11:49:55,565 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-26 11:49:55,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 261 events. 132/261 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1203 event pairs, 42 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 580. Up to 174 conditions per place. [2023-11-26 11:49:55,570 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 23 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2023-11-26 11:49:55,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 139 flow [2023-11-26 11:49:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:49:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:49:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2023-11-26 11:49:55,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5862068965517241 [2023-11-26 11:49:55,573 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 68 transitions. [2023-11-26 11:49:55,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 68 transitions. [2023-11-26 11:49:55,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:49:55,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 68 transitions. [2023-11-26 11:49:55,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 11:49:55,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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 11:49:55,576 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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 11:49:55,576 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 75 flow. Second operand 4 states and 68 transitions. [2023-11-26 11:49:55,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 139 flow [2023-11-26 11:49:55,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:49:55,578 INFO L231 Difference]: Finished difference. Result has 35 places, 25 transitions, 70 flow [2023-11-26 11:49:55,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2023-11-26 11:49:55,580 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-11-26 11:49:55,580 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 70 flow [2023-11-26 11:49:55,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 11:49:55,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:49:55,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:55,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:49:55,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-26 11:49:55,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:55,582 INFO L85 PathProgramCache]: Analyzing trace with hash -108802020, now seen corresponding path program 1 times [2023-11-26 11:49:55,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:55,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396835091] [2023-11-26 11:49:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:55,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:55,713 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 11:49:55,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:55,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396835091] [2023-11-26 11:49:55,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396835091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:55,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:55,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:49:55,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057538237] [2023-11-26 11:49:55,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:55,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:49:55,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:55,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:49:55,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:49:55,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2023-11-26 11:49:55,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 11:49:55,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:49:55,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2023-11-26 11:49:55,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:49:55,874 INFO L124 PetriNetUnfolderBase]: 106/215 cut-off events. [2023-11-26 11:49:55,874 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-11-26 11:49:55,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 215 events. 106/215 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 985 event pairs, 32 based on Foata normal form. 20/227 useless extension candidates. Maximal degree in co-relation 468. Up to 128 conditions per place. [2023-11-26 11:49:55,879 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2023-11-26 11:49:55,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 130 flow [2023-11-26 11:49:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:49:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:49:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2023-11-26 11:49:55,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2023-11-26 11:49:55,884 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 66 transitions. [2023-11-26 11:49:55,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 66 transitions. [2023-11-26 11:49:55,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:49:55,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 66 transitions. [2023-11-26 11:49:55,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 11:49:55,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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 11:49:55,890 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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 11:49:55,890 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 70 flow. Second operand 4 states and 66 transitions. [2023-11-26 11:49:55,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 130 flow [2023-11-26 11:49:55,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 123 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 11:49:55,894 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-11-26 11:49:55,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-11-26 11:49:55,896 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2023-11-26 11:49:55,896 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-11-26 11:49:55,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 11:49:55,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-26 11:49:55,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-26 11:49:55,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-26 11:49:55,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-26 11:49:55,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-26 11:49:55,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-26 11:49:55,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-26 11:49:55,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-26 11:49:55,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-26 11:49:55,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-26 11:49:55,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:49:55,911 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 11:49:55,919 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:49:55,920 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:49:55,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:49:55 BasicIcfg [2023-11-26 11:49:55,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:49:55,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:49:55,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:49:55,929 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:49:55,929 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:54" (3/4) ... [2023-11-26 11:49:55,931 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:49:55,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-26 11:49:55,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-26 11:49:55,943 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2023-11-26 11:49:55,944 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-26 11:49:55,944 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 11:49:55,944 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:49:56,074 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:49:56,075 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:49:56,075 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:49:56,076 INFO L158 Benchmark]: Toolchain (without parser) took 3780.51ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 88.7MB in the beginning and 134.7MB in the end (delta: -45.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:56,076 INFO L158 Benchmark]: CDTParser took 1.41ms. Allocated memory is still 94.4MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:56,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 650.43ms. Allocated memory is still 134.2MB. Free memory was 88.4MB in the beginning and 65.7MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-26 11:49:56,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.77ms. Allocated memory is still 134.2MB. Free memory was 65.7MB in the beginning and 104.5MB in the end (delta: -38.8MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2023-11-26 11:49:56,078 INFO L158 Benchmark]: Boogie Preprocessor took 110.38ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 104.4MB in the beginning and 148.5MB in the end (delta: -44.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-11-26 11:49:56,078 INFO L158 Benchmark]: RCFGBuilder took 983.65ms. Allocated memory is still 178.3MB. Free memory was 148.5MB in the beginning and 105.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-26 11:49:56,079 INFO L158 Benchmark]: TraceAbstraction took 1790.22ms. Allocated memory is still 178.3MB. Free memory was 104.5MB in the beginning and 138.8MB in the end (delta: -34.4MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2023-11-26 11:49:56,079 INFO L158 Benchmark]: Witness Printer took 147.30ms. Allocated memory is still 178.3MB. Free memory was 138.8MB in the beginning and 134.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:49:56,082 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41ms. Allocated memory is still 94.4MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 650.43ms. Allocated memory is still 134.2MB. Free memory was 88.4MB in the beginning and 65.7MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.77ms. Allocated memory is still 134.2MB. Free memory was 65.7MB in the beginning and 104.5MB in the end (delta: -38.8MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.38ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 104.4MB in the beginning and 148.5MB in the end (delta: -44.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * RCFGBuilder took 983.65ms. Allocated memory is still 178.3MB. Free memory was 148.5MB in the beginning and 105.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1790.22ms. Allocated memory is still 178.3MB. Free memory was 104.5MB in the beginning and 138.8MB in the end (delta: -34.4MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. * Witness Printer took 147.30ms. Allocated memory is still 178.3MB. Free memory was 138.8MB in the beginning and 134.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 51 locations, 10 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:49:56,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5ed228-3dc8-43c3-86dc-7b0bea09eab7/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