./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX --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 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:15:09,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:15:09,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 19:15:09,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:15:09,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:15:09,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:15:09,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:15:09,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:15:09,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:15:09,459 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:15:09,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:15:09,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:15:09,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:15:09,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:15:09,466 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:15:09,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:15:09,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:15:09,467 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:15:09,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:15:09,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:15:09,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:15:09,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:15:09,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:15:09,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:15:09,469 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:15:09,469 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:15:09,470 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:15:09,470 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:15:09,470 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:15:09,470 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:15:09,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:15:09,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:15:09,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:15:09,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:15:09,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:15:09,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:15:09,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:15:09,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:15:09,476 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:15:09,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:15:09,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:15:09,477 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:15:09,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:15:09,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:15:09,478 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_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2024-11-08 19:15:09,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:15:09,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:15:09,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:15:09,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:15:09,825 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:15:09,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i Unable to find full path for "g++" [2024-11-08 19:15:12,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:15:12,260 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:15:12,261 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2024-11-08 19:15:12,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/data/c194f436c/27fe0924f8744187aa7226474ef24124/FLAG7e41be3ca [2024-11-08 19:15:12,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/data/c194f436c/27fe0924f8744187aa7226474ef24124 [2024-11-08 19:15:12,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:15:12,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:15:12,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:15:12,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:15:12,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:15:12,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:12,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@443dece9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12, skipping insertion in model container [2024-11-08 19:15:12,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:12,379 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:15:12,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:15:12,893 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:15:12,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:15:12,995 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:15:12,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12 WrapperNode [2024-11-08 19:15:12,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:15:12,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:15:12,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:15:12,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:15:13,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,085 INFO L138 Inliner]: procedures = 173, calls = 57, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 247 [2024-11-08 19:15:13,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:15:13,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:15:13,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:15:13,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:15:13,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,143 INFO L175 MemorySlicer]: Split 33 memory accesses to 8 slices as follows [2, 2, 5, 6, 6, 2, 5, 5]. 18 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 5, 1, 1, 0, 5, 5]. The 6 writes are split as follows [0, 1, 0, 2, 2, 1, 0, 0]. [2024-11-08 19:15:13,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:15:13,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:15:13,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:15:13,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:15:13,193 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (1/1) ... [2024-11-08 19:15:13,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:15:13,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:15:13,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:15:13,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d23015-5ddb-4c45-a799-5c9297a92cd9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:15:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 19:15:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 19:15:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 19:15:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 19:15:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 19:15:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 19:15:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 19:15:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 19:15:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 19:15:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 19:15:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 19:15:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 19:15:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 19:15:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 19:15:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 19:15:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 19:15:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 19:15:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 19:15:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 19:15:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:15:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:15:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 19:15:13,271 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 19:15:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:15:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:15:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 19:15:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 19:15:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 19:15:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 19:15:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 19:15:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 19:15:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 19:15:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 19:15:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:15:13,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:15:13,277 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 19:15:13,483 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:15:13,486 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:15:14,098 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 19:15:14,098 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:15:14,430 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:15:14,431 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 19:15:14,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:15:14 BoogieIcfgContainer [2024-11-08 19:15:14,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:15:14,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:15:14,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:15:14,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:15:14,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:15:12" (1/3) ... [2024-11-08 19:15:14,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479217fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:15:14, skipping insertion in model container [2024-11-08 19:15:14,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:15:12" (2/3) ... [2024-11-08 19:15:14,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479217fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:15:14, skipping insertion in model container [2024-11-08 19:15:14,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:15:14" (3/3) ... [2024-11-08 19:15:14,444 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2024-11-08 19:15:14,464 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:15:14,464 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-08 19:15:14,464 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 19:15:14,560 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 19:15:14,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 137 transitions, 294 flow [2024-11-08 19:15:14,719 INFO L124 PetriNetUnfolderBase]: 55/262 cut-off events. [2024-11-08 19:15:14,720 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 19:15:14,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 262 events. 55/262 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1199 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 151. Up to 8 conditions per place. [2024-11-08 19:15:14,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 137 transitions, 294 flow [2024-11-08 19:15:14,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 137 transitions, 294 flow [2024-11-08 19:15:14,747 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:15:14,755 INFO L333 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, 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;@188e9827, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:15:14,755 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-08 19:15:14,763 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:15:14,763 INFO L124 PetriNetUnfolderBase]: 3/18 cut-off events. [2024-11-08 19:15:14,763 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:15:14,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:15:14,765 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 19:15:14,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-08 19:15:14,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:14,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1789701577, now seen corresponding path program 1 times [2024-11-08 19:15:14,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:14,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822011876] [2024-11-08 19:15:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:14,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:15,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:15,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822011876] [2024-11-08 19:15:15,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822011876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:15:15,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:15:15,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:15:15,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556658341] [2024-11-08 19:15:15,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:15,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:15:15,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:15,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:15:15,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:15:15,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 137 [2024-11-08 19:15:15,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 137 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-11-08 19:15:15,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:15:15,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 137 [2024-11-08 19:15:15,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:15:17,448 INFO L124 PetriNetUnfolderBase]: 5878/12258 cut-off events. [2024-11-08 19:15:17,449 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2024-11-08 19:15:17,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21254 conditions, 12258 events. 5878/12258 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 110122 event pairs, 2520 based on Foata normal form. 1975/13251 useless extension candidates. Maximal degree in co-relation 20298. Up to 8815 conditions per place. [2024-11-08 19:15:17,553 INFO L140 encePairwiseOnDemand]: 110/137 looper letters, 92 selfloop transitions, 3 changer transitions 0/152 dead transitions. [2024-11-08 19:15:17,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 152 transitions, 514 flow [2024-11-08 19:15:17,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:15:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:15:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2024-11-08 19:15:17,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6697080291970803 [2024-11-08 19:15:17,574 INFO L175 Difference]: Start difference. First operand has 112 places, 137 transitions, 294 flow. Second operand 4 states and 367 transitions. [2024-11-08 19:15:17,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 152 transitions, 514 flow [2024-11-08 19:15:17,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 152 transitions, 514 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 19:15:17,586 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 262 flow [2024-11-08 19:15:17,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2024-11-08 19:15:17,595 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 2 predicate places. [2024-11-08 19:15:17,595 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 262 flow [2024-11-08 19:15:17,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-11-08 19:15:17,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:15:17,596 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 19:15:17,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:15:17,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-08 19:15:17,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:17,598 INFO L85 PathProgramCache]: Analyzing trace with hash -957396683, now seen corresponding path program 1 times [2024-11-08 19:15:17,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:17,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974066975] [2024-11-08 19:15:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:17,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:15:17,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:15:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:15:17,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:15:17,695 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:15:17,698 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-08 19:15:17,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2024-11-08 19:15:17,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2024-11-08 19:15:17,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2024-11-08 19:15:17,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2024-11-08 19:15:17,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2024-11-08 19:15:17,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2024-11-08 19:15:17,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2024-11-08 19:15:17,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2024-11-08 19:15:17,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2024-11-08 19:15:17,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2024-11-08 19:15:17,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2024-11-08 19:15:17,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2024-11-08 19:15:17,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2024-11-08 19:15:17,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2024-11-08 19:15:17,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2024-11-08 19:15:17,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2024-11-08 19:15:17,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2024-11-08 19:15:17,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2024-11-08 19:15:17,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2024-11-08 19:15:17,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2024-11-08 19:15:17,709 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2024-11-08 19:15:17,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2024-11-08 19:15:17,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2024-11-08 19:15:17,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2024-11-08 19:15:17,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2024-11-08 19:15:17,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:15:17,712 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 19:15:17,716 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 19:15:17,719 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 19:15:17,821 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-08 19:15:17,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 231 transitions, 506 flow [2024-11-08 19:15:18,019 INFO L124 PetriNetUnfolderBase]: 189/839 cut-off events. [2024-11-08 19:15:18,020 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-08 19:15:18,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 839 events. 189/839 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5112 event pairs, 1 based on Foata normal form. 0/555 useless extension candidates. Maximal degree in co-relation 509. Up to 32 conditions per place. [2024-11-08 19:15:18,034 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 231 transitions, 506 flow [2024-11-08 19:15:18,053 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 231 transitions, 506 flow [2024-11-08 19:15:18,054 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:15:18,059 INFO L333 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, 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;@188e9827, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:15:18,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-08 19:15:18,063 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:15:18,063 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-08 19:15:18,064 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:15:18,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:15:18,064 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 19:15:18,064 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-08 19:15:18,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:15:18,065 INFO L85 PathProgramCache]: Analyzing trace with hash -25536062, now seen corresponding path program 1 times [2024-11-08 19:15:18,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:15:18,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649384559] [2024-11-08 19:15:18,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:18,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:15:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:15:18,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:18,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649384559] [2024-11-08 19:15:18,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649384559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:15:18,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:15:18,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:15:18,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029284103] [2024-11-08 19:15:18,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:18,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:15:18,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:18,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:15:18,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:15:18,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 231 [2024-11-08 19:15:18,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 231 transitions, 506 flow. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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) [2024-11-08 19:15:18,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:15:18,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 231 [2024-11-08 19:15:18,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand