./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix052_tso.oepc.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_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/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_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix052_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/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_d6190098-f0d0-4b82-ac26-f6f11e9df570/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 2b7b455ef4c5fa587af8d02bd246c19891a72a51abfbb562aebbb342c1c7fae8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:06,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:06,163 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 12:02:06,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:06,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:06,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:06,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:06,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:06,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:06,211 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:06,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:06,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:06,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:06,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:06,215 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:06,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:06,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:06,216 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:06,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:06,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:06,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:06,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:06,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:06,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:06,220 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:02:06,220 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:02:06,221 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:06,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:06,221 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:06,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:06,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:06,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:02:06,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:06,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:06,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:06,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:06,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:06,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:06,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:06,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:06,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:06,227 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:06,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:06,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:06,228 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_d6190098-f0d0-4b82-ac26-f6f11e9df570/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b7b455ef4c5fa587af8d02bd246c19891a72a51abfbb562aebbb342c1c7fae8 [2023-11-26 12:02:06,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:06,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:06,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:06,577 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:06,578 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:06,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-wmm/mix052_tso.oepc.i [2023-11-26 12:02:09,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:10,114 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:10,115 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/sv-benchmarks/c/pthread-wmm/mix052_tso.oepc.i [2023-11-26 12:02:10,140 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/data/d57f164c0/fce97c085fcb4208b4fabeb4d9154375/FLAGf9084dd48 [2023-11-26 12:02:10,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/data/d57f164c0/fce97c085fcb4208b4fabeb4d9154375 [2023-11-26 12:02:10,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:10,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:10,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:10,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:10,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:10,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:10,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@670a22a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10, skipping insertion in model container [2023-11-26 12:02:10,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:10,230 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:10,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:10,821 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:10,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:10,976 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:02:10,977 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:02:10,984 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:10,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10 WrapperNode [2023-11-26 12:02:10,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:10,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:10,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:10,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:10,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,076 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 152 [2023-11-26 12:02:11,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:11,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:11,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:11,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:11,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,122 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 12:02:11,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:11,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:11,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:11,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:11,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (1/1) ... [2023-11-26 12:02:11,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:11,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:11,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:02:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:02:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:02:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:02:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 12:02:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:02:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:02:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-26 12:02:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-26 12:02:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-26 12:02:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-26 12:02:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-26 12:02:11,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-26 12:02:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:02:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:02:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:02:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:02:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 12:02:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:11,280 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 12:02:11,542 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:11,546 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:12,016 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:12,358 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:12,373 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:02:12,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:12 BoogieIcfgContainer [2023-11-26 12:02:12,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:12,382 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:12,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:12,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:12,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:10" (1/3) ... [2023-11-26 12:02:12,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c18857a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:12, skipping insertion in model container [2023-11-26 12:02:12,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:10" (2/3) ... [2023-11-26 12:02:12,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c18857a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:12, skipping insertion in model container [2023-11-26 12:02:12,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:12" (3/3) ... [2023-11-26 12:02:12,393 INFO L112 eAbstractionObserver]: Analyzing ICFG mix052_tso.oepc.i [2023-11-26 12:02:12,404 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:02:12,417 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:12,417 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-26 12:02:12,418 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:02:12,489 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 12:02:12,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 90 flow [2023-11-26 12:02:12,581 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-11-26 12:02:12,582 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:02:12,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 91 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 12:02:12,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 39 transitions, 90 flow [2023-11-26 12:02:12,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 81 flow [2023-11-26 12:02:12,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:12,612 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;@499a19c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:12,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-26 12:02:12,620 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:02:12,620 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-26 12:02:12,620 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:02:12,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:12,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:12,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 12:02:12,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:12,627 INFO L85 PathProgramCache]: Analyzing trace with hash -247804911, now seen corresponding path program 1 times [2023-11-26 12:02:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:12,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799960295] [2023-11-26 12:02:12,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:12,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:13,014 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 12:02:13,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:13,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799960295] [2023-11-26 12:02:13,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799960295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:13,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:13,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:02:13,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648754743] [2023-11-26 12:02:13,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:13,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:13,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:13,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:13,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:13,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-26 12:02:13,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 12:02:13,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:13,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-26 12:02:13,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:14,085 INFO L124 PetriNetUnfolderBase]: 2501/3707 cut-off events. [2023-11-26 12:02:14,085 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-26 12:02:14,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7448 conditions, 3707 events. 2501/3707 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 20829 event pairs, 893 based on Foata normal form. 0/2887 useless extension candidates. Maximal degree in co-relation 7437. Up to 3457 conditions per place. [2023-11-26 12:02:14,129 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 39 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2023-11-26 12:02:14,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 52 transitions, 205 flow [2023-11-26 12:02:14,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:14,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2023-11-26 12:02:14,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7264957264957265 [2023-11-26 12:02:14,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 85 transitions. [2023-11-26 12:02:14,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 85 transitions. [2023-11-26 12:02:14,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:14,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 85 transitions. [2023-11-26 12:02:14,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 12:02:14,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 12:02:14,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 12:02:14,160 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 81 flow. Second operand 3 states and 85 transitions. [2023-11-26 12:02:14,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 52 transitions, 205 flow [2023-11-26 12:02:14,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 52 transitions, 200 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 12:02:14,173 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 114 flow [2023-11-26 12:02:14,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-11-26 12:02:14,181 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2023-11-26 12:02:14,181 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 114 flow [2023-11-26 12:02:14,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 12:02:14,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:14,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:14,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:02:14,182 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 12:02:14,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:14,183 INFO L85 PathProgramCache]: Analyzing trace with hash 90075465, now seen corresponding path program 1 times [2023-11-26 12:02:14,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:14,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356508933] [2023-11-26 12:02:14,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:14,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:14,421 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 12:02:14,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:14,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356508933] [2023-11-26 12:02:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356508933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:14,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563920563] [2023-11-26 12:02:14,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:14,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:14,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:14,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:14,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:14,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-26 12:02:14,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 12:02:14,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:14,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-26 12:02:14,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:15,016 INFO L124 PetriNetUnfolderBase]: 1713/2563 cut-off events. [2023-11-26 12:02:15,017 INFO L125 PetriNetUnfolderBase]: For 223/223 co-relation queries the response was YES. [2023-11-26 12:02:15,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6008 conditions, 2563 events. 1713/2563 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14054 event pairs, 535 based on Foata normal form. 0/2211 useless extension candidates. Maximal degree in co-relation 5997. Up to 2312 conditions per place. [2023-11-26 12:02:15,045 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 36 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2023-11-26 12:02:15,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 212 flow [2023-11-26 12:02:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 12:02:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2023-11-26 12:02:15,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-11-26 12:02:15,052 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 91 transitions. [2023-11-26 12:02:15,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 91 transitions. [2023-11-26 12:02:15,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:15,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 91 transitions. [2023-11-26 12:02:15,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 12:02:15,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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 12:02:15,062 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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 12:02:15,064 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 114 flow. Second operand 4 states and 91 transitions. [2023-11-26 12:02:15,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 212 flow [2023-11-26 12:02:15,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:02:15,070 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 106 flow [2023-11-26 12:02:15,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2023-11-26 12:02:15,077 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-11-26 12:02:15,078 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 106 flow [2023-11-26 12:02:15,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 12:02:15,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:15,078 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:15,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:02:15,079 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 12:02:15,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:15,080 INFO L85 PathProgramCache]: Analyzing trace with hash 90075466, now seen corresponding path program 1 times [2023-11-26 12:02:15,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:15,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356874013] [2023-11-26 12:02:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:15,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:15,309 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 12:02:15,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:15,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356874013] [2023-11-26 12:02:15,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356874013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:15,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:15,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:15,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261268666] [2023-11-26 12:02:15,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:15,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:15,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:15,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:15,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:15,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-26 12:02:15,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 12:02:15,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:15,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-26 12:02:15,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:15,770 INFO L124 PetriNetUnfolderBase]: 1225/1863 cut-off events. [2023-11-26 12:02:15,770 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2023-11-26 12:02:15,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4281 conditions, 1863 events. 1225/1863 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9878 event pairs, 185 based on Foata normal form. 0/1764 useless extension candidates. Maximal degree in co-relation 4269. Up to 985 conditions per place. [2023-11-26 12:02:15,789 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 47 selfloop transitions, 7 changer transitions 3/66 dead transitions. [2023-11-26 12:02:15,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 66 transitions, 292 flow [2023-11-26 12:02:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 12:02:15,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2023-11-26 12:02:15,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2023-11-26 12:02:15,796 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 108 transitions. [2023-11-26 12:02:15,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 108 transitions. [2023-11-26 12:02:15,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:15,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 108 transitions. [2023-11-26 12:02:15,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 12:02:15,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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 12:02:15,801 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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 12:02:15,801 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 106 flow. Second operand 4 states and 108 transitions. [2023-11-26 12:02:15,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 66 transitions, 292 flow [2023-11-26 12:02:15,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 66 transitions, 287 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:15,806 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 127 flow [2023-11-26 12:02:15,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2023-11-26 12:02:15,808 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2023-11-26 12:02:15,808 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 127 flow [2023-11-26 12:02:15,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 12:02:15,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:15,809 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] [2023-11-26 12:02:15,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:02:15,809 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 12:02:15,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:15,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1167601029, now seen corresponding path program 1 times [2023-11-26 12:02:15,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:15,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091507128] [2023-11-26 12:02:15,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:15,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:16,050 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 12:02:16,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:16,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091507128] [2023-11-26 12:02:16,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091507128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:16,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:16,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624602652] [2023-11-26 12:02:16,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:16,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:02:16,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:02:16,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:16,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-26 12:02:16,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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 12:02:16,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:16,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-26 12:02:16,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:16,452 INFO L124 PetriNetUnfolderBase]: 957/1475 cut-off events. [2023-11-26 12:02:16,452 INFO L125 PetriNetUnfolderBase]: For 993/993 co-relation queries the response was YES. [2023-11-26 12:02:16,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3822 conditions, 1475 events. 957/1475 cut-off events. For 993/993 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8247 event pairs, 125 based on Foata normal form. 72/1520 useless extension candidates. Maximal degree in co-relation 3809. Up to 628 conditions per place. [2023-11-26 12:02:16,460 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2023-11-26 12:02:16,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 60 transitions, 271 flow [2023-11-26 12:02:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:02:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 12:02:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 114 transitions. [2023-11-26 12:02:16,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5846153846153846 [2023-11-26 12:02:16,463 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 114 transitions. [2023-11-26 12:02:16,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 114 transitions. [2023-11-26 12:02:16,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:16,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 114 transitions. [2023-11-26 12:02:16,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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 12:02:16,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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 12:02:16,467 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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 12:02:16,467 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 127 flow. Second operand 5 states and 114 transitions. [2023-11-26 12:02:16,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 60 transitions, 271 flow [2023-11-26 12:02:16,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 60 transitions, 247 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-26 12:02:16,474 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-11-26 12:02:16,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-11-26 12:02:16,476 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2023-11-26 12:02:16,476 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-11-26 12:02:16,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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 12:02:16,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-26 12:02:16,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-26 12:02:16,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-26 12:02:16,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-26 12:02:16,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-26 12:02:16,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-26 12:02:16,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-26 12:02:16,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-26 12:02:16,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-26 12:02:16,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-26 12:02:16,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-26 12:02:16,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-26 12:02:16,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-26 12:02:16,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-26 12:02:16,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-26 12:02:16,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:02:16,491 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 12:02:16,498 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 12:02:16,499 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:02:16,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:02:16 BasicIcfg [2023-11-26 12:02:16,511 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:02:16,513 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:02:16,513 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:02:16,513 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:02:16,514 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:12" (3/4) ... [2023-11-26 12:02:16,516 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:02:16,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-26 12:02:16,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-26 12:02:16,519 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-26 12:02:16,529 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 92 nodes and edges [2023-11-26 12:02:16,530 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-26 12:02:16,530 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-26 12:02:16,531 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 12:02:16,639 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:02:16,640 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:02:16,640 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:02:16,641 INFO L158 Benchmark]: Toolchain (without parser) took 6481.35ms. Allocated memory was 169.9MB in the beginning and 304.1MB in the end (delta: 134.2MB). Free memory was 138.7MB in the beginning and 84.3MB in the end (delta: 54.5MB). Peak memory consumption was 189.2MB. Max. memory is 16.1GB. [2023-11-26 12:02:16,641 INFO L158 Benchmark]: CDTParser took 1.33ms. Allocated memory is still 169.9MB. Free memory was 147.4MB in the beginning and 147.2MB in the end (delta: 238.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:16,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.81ms. Allocated memory is still 169.9MB. Free memory was 138.2MB in the beginning and 114.7MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:16,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.48ms. Allocated memory is still 169.9MB. Free memory was 114.2MB in the beginning and 111.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:02:16,642 INFO L158 Benchmark]: Boogie Preprocessor took 106.85ms. Allocated memory is still 169.9MB. Free memory was 111.5MB in the beginning and 108.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:16,643 INFO L158 Benchmark]: RCFGBuilder took 1191.50ms. Allocated memory is still 169.9MB. Free memory was 108.4MB in the beginning and 126.3MB in the end (delta: -17.8MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2023-11-26 12:02:16,643 INFO L158 Benchmark]: TraceAbstraction took 4130.07ms. Allocated memory was 169.9MB in the beginning and 304.1MB in the end (delta: 134.2MB). Free memory was 125.8MB in the beginning and 89.5MB in the end (delta: 36.3MB). Peak memory consumption was 171.6MB. Max. memory is 16.1GB. [2023-11-26 12:02:16,643 INFO L158 Benchmark]: Witness Printer took 127.28ms. Allocated memory is still 304.1MB. Free memory was 89.5MB in the beginning and 84.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:02:16,645 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33ms. Allocated memory is still 169.9MB. Free memory was 147.4MB in the beginning and 147.2MB in the end (delta: 238.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 824.81ms. Allocated memory is still 169.9MB. Free memory was 138.2MB in the beginning and 114.7MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.48ms. Allocated memory is still 169.9MB. Free memory was 114.2MB in the beginning and 111.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.85ms. Allocated memory is still 169.9MB. Free memory was 111.5MB in the beginning and 108.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1191.50ms. Allocated memory is still 169.9MB. Free memory was 108.4MB in the beginning and 126.3MB in the end (delta: -17.8MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4130.07ms. Allocated memory was 169.9MB in the beginning and 304.1MB in the end (delta: 134.2MB). Free memory was 125.8MB in the beginning and 89.5MB in the end (delta: 36.3MB). Peak memory consumption was 171.6MB. Max. memory is 16.1GB. * Witness Printer took 127.28ms. Allocated memory is still 304.1MB. Free memory was 89.5MB in the beginning and 84.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: 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, 70 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: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 268 IncrementalHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1 mSDtfsCounter, 268 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=127occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 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 12:02:16,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6190098-f0d0-4b82-ac26-f6f11e9df570/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