./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya --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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:05:36,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:05:36,735 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:05:36,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:05:36,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:05:36,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:05:36,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:05:36,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:05:36,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:05:36,768 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:05:36,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:05:36,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:05:36,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:05:36,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:05:36,771 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:05:36,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:05:36,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:05:36,772 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:05:36,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:05:36,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:05:36,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:05:36,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:05:36,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:05:36,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:05:36,776 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:05:36,776 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:05:36,777 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:05:36,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:05:36,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:05:36,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:05:36,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:05:36,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:05:36,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:05:36,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:05:36,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:05:36,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:05:36,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:05:36,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:05:36,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:05:36,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:05:36,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:05:36,783 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:05:36,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:05:36,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:05:36,784 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_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2023-11-29 06:05:37,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:05:37,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:05:37,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:05:37,045 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:05:37,046 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:05:37,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2023-11-29 06:05:39,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:05:40,251 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:05:40,251 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2023-11-29 06:05:40,269 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/data/eaae69202/0d1ef3a3497149ceb83559e6023feb94/FLAG981fff8c5 [2023-11-29 06:05:40,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/data/eaae69202/0d1ef3a3497149ceb83559e6023feb94 [2023-11-29 06:05:40,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:05:40,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:05:40,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:05:40,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:05:40,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:05:40,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:40,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b92b66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40, skipping insertion in model container [2023-11-29 06:05:40,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:40,350 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:05:40,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:05:40,830 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:05:40,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:05:40,952 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:05:40,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40 WrapperNode [2023-11-29 06:05:40,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:05:40,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:05:40,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:05:40,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:05:40,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:40,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,014 INFO L138 Inliner]: procedures = 280, calls = 99, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 454 [2023-11-29 06:05:41,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:05:41,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:05:41,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:05:41,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:05:41,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,069 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 5, 5, 28, 5, 2, 5, 2, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 5, 0, 5, 0, 5, 0, 0]. The 17 writes are split as follows [0, 0, 0, 14, 0, 1, 0, 1, 1]. [2023-11-29 06:05:41,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:05:41,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:05:41,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:05:41,115 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:05:41,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (1/1) ... [2023-11-29 06:05:41,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:05:41,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:05:41,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:05:41,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e2908fd-716f-4fc6-a45e-50a2405521cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:05:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:05:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:05:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:05:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:05:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:05:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 06:05:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 06:05:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 06:05:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 06:05:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 06:05:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-29 06:05:41,200 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-29 06:05:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:05:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 06:05:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:05:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:05:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:05:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:05:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 06:05:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 06:05:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 06:05:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 06:05:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 06:05:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-29 06:05:41,202 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-29 06:05:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:05:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:05:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:05:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:05:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 06:05:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 06:05:41,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 06:05:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 06:05:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 06:05:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 06:05:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:05:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:05:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:05:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:05:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:05:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:05:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 06:05:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 06:05:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 06:05:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 06:05:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 06:05:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-11-29 06:05:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-11-29 06:05:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:05:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:05:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:05:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:05:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 06:05:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 06:05:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 06:05:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 06:05:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 06:05:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:05:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:05:41,210 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 06:05:41,455 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:05:41,457 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:05:42,062 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:05:42,424 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:05:42,424 INFO L309 CfgBuilder]: Removed 29 assume(true) statements. [2023-11-29 06:05:42,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:05:42 BoogieIcfgContainer [2023-11-29 06:05:42,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:05:42,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:05:42,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:05:42,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:05:42,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:05:40" (1/3) ... [2023-11-29 06:05:42,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:05:42, skipping insertion in model container [2023-11-29 06:05:42,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:05:40" (2/3) ... [2023-11-29 06:05:42,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:05:42, skipping insertion in model container [2023-11-29 06:05:42,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:05:42" (3/3) ... [2023-11-29 06:05:42,435 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2023-11-29 06:05:42,445 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:05:42,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:05:42,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-29 06:05:42,457 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:05:42,566 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-11-29 06:05:42,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 179 transitions, 397 flow [2023-11-29 06:05:42,773 INFO L124 PetriNetUnfolderBase]: 130/680 cut-off events. [2023-11-29 06:05:42,774 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-29 06:05:42,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 680 events. 130/680 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4251 event pairs, 0 based on Foata normal form. 0/468 useless extension candidates. Maximal degree in co-relation 348. Up to 16 conditions per place. [2023-11-29 06:05:42,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 179 transitions, 397 flow [2023-11-29 06:05:42,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 179 transitions, 397 flow [2023-11-29 06:05:42,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:05:42,817 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;@6d02a80e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:05:42,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-29 06:05:42,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:05:42,824 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-29 06:05:42,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:05:42,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:05:42,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 06:05:42,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-29 06:05:42,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:42,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1092853054, now seen corresponding path program 1 times [2023-11-29 06:05:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:05:42,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114710931] [2023-11-29 06:05:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:42,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:05:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:05:43,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:05:43,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114710931] [2023-11-29 06:05:43,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114710931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:05:43,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:05:43,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:05:43,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555807996] [2023-11-29 06:05:43,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:05:43,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:05:43,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:05:43,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:05:43,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:05:43,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 179 [2023-11-29 06:05:43,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 179 transitions, 397 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2023-11-29 06:05:43,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:05:43,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 179 [2023-11-29 06:05:43,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:06:28,428 INFO L124 PetriNetUnfolderBase]: 265499/450131 cut-off events. [2023-11-29 06:06:28,428 INFO L125 PetriNetUnfolderBase]: For 6400/6400 co-relation queries the response was YES. [2023-11-29 06:06:29,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810785 conditions, 450131 events. 265499/450131 cut-off events. For 6400/6400 co-relation queries the response was YES. Maximal size of possible extension queue 6610. Compared 4580358 event pairs, 171600 based on Foata normal form. 45262/442165 useless extension candidates. Maximal degree in co-relation 743544. Up to 357185 conditions per place. [2023-11-29 06:06:31,069 INFO L140 encePairwiseOnDemand]: 150/179 looper letters, 111 selfloop transitions, 3 changer transitions 0/165 dead transitions. [2023-11-29 06:06:31,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 165 transitions, 597 flow [2023-11-29 06:06:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:06:31,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:06:31,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-11-29 06:06:31,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48044692737430167 [2023-11-29 06:06:31,084 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-11-29 06:06:31,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-11-29 06:06:31,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:06:31,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-11-29 06:06:31,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2023-11-29 06:06:31,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 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) [2023-11-29 06:06:31,098 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 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) [2023-11-29 06:06:31,100 INFO L175 Difference]: Start difference. First operand has 149 places, 179 transitions, 397 flow. Second operand 4 states and 344 transitions. [2023-11-29 06:06:31,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 165 transitions, 597 flow [2023-11-29 06:06:31,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 165 transitions, 597 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:06:31,172 INFO L231 Difference]: Finished difference. Result has 151 places, 154 transitions, 357 flow [2023-11-29 06:06:31,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=151, PETRI_TRANSITIONS=154} [2023-11-29 06:06:31,178 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, 2 predicate places. [2023-11-29 06:06:31,178 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 154 transitions, 357 flow [2023-11-29 06:06:31,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2023-11-29 06:06:31,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:06:31,179 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-29 06:06:31,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:06:31,179 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-29 06:06:31,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:31,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1334419013, now seen corresponding path program 1 times [2023-11-29 06:06:31,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:31,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806079863] [2023-11-29 06:06:31,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:31,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:06:31,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:06:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:06:31,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:06:31,461 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:06:31,463 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2023-11-29 06:06:31,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2023-11-29 06:06:31,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2023-11-29 06:06:31,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2023-11-29 06:06:31,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2023-11-29 06:06:31,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2023-11-29 06:06:31,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2023-11-29 06:06:31,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2023-11-29 06:06:31,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2023-11-29 06:06:31,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2023-11-29 06:06:31,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2023-11-29 06:06:31,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2023-11-29 06:06:31,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2023-11-29 06:06:31,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2023-11-29 06:06:31,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2023-11-29 06:06:31,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2023-11-29 06:06:31,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2023-11-29 06:06:31,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2023-11-29 06:06:31,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2023-11-29 06:06:31,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2023-11-29 06:06:31,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2023-11-29 06:06:31,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2023-11-29 06:06:31,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2023-11-29 06:06:31,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2023-11-29 06:06:31,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2023-11-29 06:06:31,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2023-11-29 06:06:31,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2023-11-29 06:06:31,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2023-11-29 06:06:31,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2023-11-29 06:06:31,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2023-11-29 06:06:31,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2023-11-29 06:06:31,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:06:31,472 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 06:06:31,475 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 06:06:31,475 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 06:06:31,608 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-29 06:06:31,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 300 transitions, 684 flow [2023-11-29 06:06:32,163 INFO L124 PetriNetUnfolderBase]: 905/3735 cut-off events. [2023-11-29 06:06:32,163 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-11-29 06:06:32,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4383 conditions, 3735 events. 905/3735 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 32904 event pairs, 22 based on Foata normal form. 0/2612 useless extension candidates. Maximal degree in co-relation 2401. Up to 192 conditions per place. [2023-11-29 06:06:32,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 300 transitions, 684 flow [2023-11-29 06:06:32,272 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 300 transitions, 684 flow [2023-11-29 06:06:32,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:06:32,274 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;@6d02a80e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:06:32,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-29 06:06:32,278 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:06:32,278 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-29 06:06:32,278 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:06:32,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:06:32,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 06:06:32,279 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:06:32,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:32,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1373525395, now seen corresponding path program 1 times [2023-11-29 06:06:32,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:32,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77228197] [2023-11-29 06:06:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:32,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:06:32,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:32,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77228197] [2023-11-29 06:06:32,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77228197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:06:32,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:06:32,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:06:32,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304557219] [2023-11-29 06:06:32,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:06:32,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:06:32,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:32,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:06:32,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:06:32,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 300 [2023-11-29 06:06:32,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 300 transitions, 684 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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) [2023-11-29 06:06:32,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:06:32,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 300 [2023-11-29 06:06:32,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand