./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB --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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:19:47,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:19:47,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 05:19:47,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:19:47,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:19:47,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:19:47,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:19:47,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:19:47,187 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:19:47,188 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:19:47,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:19:47,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:19:47,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:19:47,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:19:47,191 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:19:47,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:19:47,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:19:47,191 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:19:47,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:19:47,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:19:47,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:19:47,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:19:47,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:19:47,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:19:47,192 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 05:19:47,193 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:19:47,193 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:19:47,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:19:47,193 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:19:47,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:19:47,193 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:19:47,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:19:47,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:19:47,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:19:47,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:47,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:19:47,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:19:47,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:19:47,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:19:47,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:47,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:19:47,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:19:47,195 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:19:47,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:19:47,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:19:47,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:19:47,196 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:19:47,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:19:47,196 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:19:47,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:19:47,196 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef [2024-11-28 05:19:47,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:19:47,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:19:47,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:19:47,506 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:19:47,506 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:19:47,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-11-28 05:19:50,506 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/data/b2874c07c/88d3d32273ad4f0d99d385b59ae9a46d/FLAG2592a68cf [2024-11-28 05:19:50,976 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:19:50,977 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-11-28 05:19:51,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/data/b2874c07c/88d3d32273ad4f0d99d385b59ae9a46d/FLAG2592a68cf [2024-11-28 05:19:51,078 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/data/b2874c07c/88d3d32273ad4f0d99d385b59ae9a46d [2024-11-28 05:19:51,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:19:51,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:19:51,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:19:51,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:19:51,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:19:51,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2266d739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51, skipping insertion in model container [2024-11-28 05:19:51,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:19:51,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:19:51,696 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:19:51,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:19:51,846 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:19:51,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51 WrapperNode [2024-11-28 05:19:51,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:19:51,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:19:51,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:19:51,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:19:51,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,904 INFO L138 Inliner]: procedures = 271, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 147 [2024-11-28 05:19:51,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:19:51,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:19:51,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:19:51,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:19:51,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,932 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-11-28 05:19:51,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,940 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:19:51,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:19:51,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:19:51,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:19:51,953 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:51,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:19:51,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:19:51,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f31ca27-9a72-44ba-a950-8794c0bf2ca5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:19:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:19:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:19:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 05:19:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 05:19:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 05:19:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 05:19:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 05:19:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 05:19:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 05:19:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 05:19:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 05:19:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 05:19:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:19:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 05:19:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 05:19:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:19:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:19:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:19:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:19:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:19:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:19:52,018 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 05:19:52,199 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:19:52,201 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:19:52,603 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 05:19:52,603 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:19:53,257 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:19:53,258 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 05:19:53,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:19:53 BoogieIcfgContainer [2024-11-28 05:19:53,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:19:53,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:19:53,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:19:53,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:19:53,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:19:51" (1/3) ... [2024-11-28 05:19:53,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a59df8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:19:53, skipping insertion in model container [2024-11-28 05:19:53,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51" (2/3) ... [2024-11-28 05:19:53,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a59df8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:19:53, skipping insertion in model container [2024-11-28 05:19:53,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:19:53" (3/3) ... [2024-11-28 05:19:53,271 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2024-11-28 05:19:53,290 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:19:53,293 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_07-cond_racing2.i that has 2 procedures, 59 locations, 1 initial locations, 6 loop locations, and 10 error locations. [2024-11-28 05:19:53,294 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 05:19:53,357 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 05:19:53,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 71 transitions, 149 flow [2024-11-28 05:19:53,465 INFO L124 PetriNetUnfolderBase]: 17/97 cut-off events. [2024-11-28 05:19:53,470 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 05:19:53,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 17/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 296 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 62. Up to 6 conditions per place. [2024-11-28 05:19:53,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 71 transitions, 149 flow [2024-11-28 05:19:53,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 70 transitions, 147 flow [2024-11-28 05:19:53,491 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:19:53,507 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;@60e30e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:19:53,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-28 05:19:53,518 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:19:53,518 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-28 05:19:53,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:19:53,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:19:53,519 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 05:19:53,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-28 05:19:53,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:53,527 INFO L85 PathProgramCache]: Analyzing trace with hash 478743003, now seen corresponding path program 1 times [2024-11-28 05:19:53,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:53,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706792421] [2024-11-28 05:19:53,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:53,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:19:53,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:53,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706792421] [2024-11-28 05:19:53,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706792421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:53,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:53,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:19:53,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014120854] [2024-11-28 05:19:53,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:53,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:19:53,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:54,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:19:54,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:19:54,029 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 71 [2024-11-28 05:19:54,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-11-28 05:19:54,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:19:54,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 71 [2024-11-28 05:19:54,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:19:54,409 INFO L124 PetriNetUnfolderBase]: 157/480 cut-off events. [2024-11-28 05:19:54,410 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 05:19:54,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 480 events. 157/480 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2554 event pairs, 18 based on Foata normal form. 72/463 useless extension candidates. Maximal degree in co-relation 752. Up to 259 conditions per place. [2024-11-28 05:19:54,420 INFO L140 encePairwiseOnDemand]: 57/71 looper letters, 47 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2024-11-28 05:19:54,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 83 transitions, 273 flow [2024-11-28 05:19:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:19:54,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:19:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-11-28 05:19:54,440 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.721830985915493 [2024-11-28 05:19:54,442 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 147 flow. Second operand 4 states and 205 transitions. [2024-11-28 05:19:54,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 83 transitions, 273 flow [2024-11-28 05:19:54,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 83 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:19:54,459 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 137 flow [2024-11-28 05:19:54,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-11-28 05:19:54,470 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-11-28 05:19:54,470 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 137 flow [2024-11-28 05:19:54,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-11-28 05:19:54,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:19:54,471 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:54,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:19:54,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-11-28 05:19:54,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:54,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1353116397, now seen corresponding path program 1 times [2024-11-28 05:19:54,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:54,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217055467] [2024-11-28 05:19:54,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:54,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:19:54,548 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:19:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:19:54,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:19:54,596 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:19:54,603 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-28 05:19:54,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-28 05:19:54,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-28 05:19:54,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-28 05:19:54,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-28 05:19:54,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-28 05:19:54,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2024-11-28 05:19:54,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2024-11-28 05:19:54,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2024-11-28 05:19:54,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-28 05:19:54,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-28 05:19:54,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-28 05:19:54,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-28 05:19:54,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-28 05:19:54,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-28 05:19:54,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:19:54,610 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 05:19:54,618 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 05:19:54,618 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 05:19:54,678 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 05:19:54,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 104 transitions, 224 flow [2024-11-28 05:19:54,732 INFO L124 PetriNetUnfolderBase]: 30/175 cut-off events. [2024-11-28 05:19:54,732 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 05:19:54,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 175 events. 30/175 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 663 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 105. Up to 9 conditions per place. [2024-11-28 05:19:54,738 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 104 transitions, 224 flow [2024-11-28 05:19:54,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 104 transitions, 224 flow [2024-11-28 05:19:54,743 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:19:54,744 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;@60e30e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:19:54,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-28 05:19:54,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:19:54,751 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-28 05:19:54,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:19:54,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:19:54,752 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 05:19:54,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-28 05:19:54,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:54,753 INFO L85 PathProgramCache]: Analyzing trace with hash 578020514, now seen corresponding path program 1 times [2024-11-28 05:19:54,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:54,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828875081] [2024-11-28 05:19:54,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:54,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:54,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:19:54,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:54,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828875081] [2024-11-28 05:19:54,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828875081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:54,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:54,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:19:54,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908088096] [2024-11-28 05:19:54,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:54,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:19:54,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:54,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:19:54,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:19:54,969 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-28 05:19:54,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 104 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-11-28 05:19:54,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:19:54,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-28 05:19:54,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:19:56,807 INFO L124 PetriNetUnfolderBase]: 4719/10013 cut-off events. [2024-11-28 05:19:56,807 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-28 05:19:56,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17194 conditions, 10013 events. 4719/10013 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 85969 event pairs, 1952 based on Foata normal form. 1711/10442 useless extension candidates. Maximal degree in co-relation 1373. Up to 7077 conditions per place. [2024-11-28 05:19:56,879 INFO L140 encePairwiseOnDemand]: 84/104 looper letters, 65 selfloop transitions, 3 changer transitions 0/115 dead transitions. [2024-11-28 05:19:56,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 115 transitions, 382 flow [2024-11-28 05:19:56,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:19:56,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:19:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2024-11-28 05:19:56,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6850961538461539 [2024-11-28 05:19:56,883 INFO L175 Difference]: Start difference. First operand has 90 places, 104 transitions, 224 flow. Second operand 4 states and 285 transitions. [2024-11-28 05:19:56,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 115 transitions, 382 flow [2024-11-28 05:19:56,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 115 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:19:56,889 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 220 flow [2024-11-28 05:19:56,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-11-28 05:19:56,890 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-28 05:19:56,890 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 220 flow [2024-11-28 05:19:56,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-11-28 05:19:56,891 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:19:56,891 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:56,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:19:56,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-28 05:19:56,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1279981851, now seen corresponding path program 1 times [2024-11-28 05:19:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001322960] [2024-11-28 05:19:56,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:57,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:19:57,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:57,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001322960] [2024-11-28 05:19:57,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001322960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:57,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:57,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:19:57,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049092044] [2024-11-28 05:19:57,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:57,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:19:57,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:57,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:19:57,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:19:57,181 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-28 05:19:57,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 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) [2024-11-28 05:19:57,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:19:57,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-28 05:19:57,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:19:58,541 INFO L124 PetriNetUnfolderBase]: 3957/8829 cut-off events. [2024-11-28 05:19:58,541 INFO L125 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2024-11-28 05:19:58,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15420 conditions, 8829 events. 3957/8829 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 76633 event pairs, 252 based on Foata normal form. 144/7721 useless extension candidates. Maximal degree in co-relation 1279. Up to 3893 conditions per place. [2024-11-28 05:19:58,605 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 105 selfloop transitions, 6 changer transitions 0/158 dead transitions. [2024-11-28 05:19:58,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 158 transitions, 572 flow [2024-11-28 05:19:58,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:19:58,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:19:58,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 394 transitions. [2024-11-28 05:19:58,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6314102564102564 [2024-11-28 05:19:58,609 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 220 flow. Second operand 6 states and 394 transitions. [2024-11-28 05:19:58,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 158 transitions, 572 flow [2024-11-28 05:19:58,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 158 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:19:58,618 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 226 flow [2024-11-28 05:19:58,618 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-28 05:19:58,619 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2024-11-28 05:19:58,620 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 226 flow [2024-11-28 05:19:58,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 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) [2024-11-28 05:19:58,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:19:58,621 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:58,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:19:58,622 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-28 05:19:58,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:58,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1280031799, now seen corresponding path program 1 times [2024-11-28 05:19:58,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:58,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848986044] [2024-11-28 05:19:58,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:58,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:19:58,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:58,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848986044] [2024-11-28 05:19:58,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848986044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:58,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:58,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:19:58,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521750552] [2024-11-28 05:19:58,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:58,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:19:58,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:58,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:19:58,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:19:58,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-28 05:19:58,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 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) [2024-11-28 05:19:58,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:19:58,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-28 05:19:58,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:19:59,933 INFO L124 PetriNetUnfolderBase]: 3854/8342 cut-off events. [2024-11-28 05:19:59,934 INFO L125 PetriNetUnfolderBase]: For 1271/1271 co-relation queries the response was YES. [2024-11-28 05:19:59,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15215 conditions, 8342 events. 3854/8342 cut-off events. For 1271/1271 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 70548 event pairs, 265 based on Foata normal form. 12/7330 useless extension candidates. Maximal degree in co-relation 1237. Up to 4558 conditions per place. [2024-11-28 05:19:59,987 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 86 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-11-28 05:19:59,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 137 transitions, 498 flow [2024-11-28 05:19:59,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:19:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 05:19:59,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 326 transitions. [2024-11-28 05:19:59,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6269230769230769 [2024-11-28 05:19:59,992 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 226 flow. Second operand 5 states and 326 transitions. [2024-11-28 05:19:59,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 137 transitions, 498 flow [2024-11-28 05:20:00,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 137 transitions, 486 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-28 05:20:00,002 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 226 flow [2024-11-28 05:20:00,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2024-11-28 05:20:00,003 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2024-11-28 05:20:00,003 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 226 flow [2024-11-28 05:20:00,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 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) [2024-11-28 05:20:00,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:20:00,003 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:00,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:20:00,004 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-28 05:20:00,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:00,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1101317411, now seen corresponding path program 1 times [2024-11-28 05:20:00,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:00,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91677635] [2024-11-28 05:20:00,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:00,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:00,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:20:00,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:00,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91677635] [2024-11-28 05:20:00,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91677635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:00,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:00,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:20:00,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408663275] [2024-11-28 05:20:00,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:00,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:20:00,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:00,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:20:00,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:20:00,141 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2024-11-28 05:20:00,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-11-28 05:20:00,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:20:00,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2024-11-28 05:20:00,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:20:01,623 INFO L124 PetriNetUnfolderBase]: 6093/12379 cut-off events. [2024-11-28 05:20:01,624 INFO L125 PetriNetUnfolderBase]: For 1677/1838 co-relation queries the response was YES. [2024-11-28 05:20:01,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22648 conditions, 12379 events. 6093/12379 cut-off events. For 1677/1838 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 106471 event pairs, 1497 based on Foata normal form. 215/11306 useless extension candidates. Maximal degree in co-relation 18878. Up to 6273 conditions per place. [2024-11-28 05:20:01,696 INFO L140 encePairwiseOnDemand]: 95/104 looper letters, 122 selfloop transitions, 12 changer transitions 0/182 dead transitions. [2024-11-28 05:20:01,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 182 transitions, 740 flow [2024-11-28 05:20:01,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:20:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 05:20:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2024-11-28 05:20:01,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2024-11-28 05:20:01,700 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 226 flow. Second operand 5 states and 375 transitions. [2024-11-28 05:20:01,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 182 transitions, 740 flow [2024-11-28 05:20:01,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 182 transitions, 722 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 05:20:01,709 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 312 flow [2024-11-28 05:20:01,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2024-11-28 05:20:01,713 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 13 predicate places. [2024-11-28 05:20:01,713 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 312 flow [2024-11-28 05:20:01,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-11-28 05:20:01,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:20:01,713 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 05:20:01,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:20:01,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-28 05:20:01,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:01,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1024731140, now seen corresponding path program 1 times [2024-11-28 05:20:01,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:01,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957926108] [2024-11-28 05:20:01,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:01,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:20:01,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:01,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957926108] [2024-11-28 05:20:01,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957926108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:01,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:01,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:20:01,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160455117] [2024-11-28 05:20:01,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:01,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:20:01,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:01,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:20:01,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:20:01,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-11-28 05:20:01,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-11-28 05:20:01,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:20:01,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-11-28 05:20:01,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:20:03,229 INFO L124 PetriNetUnfolderBase]: 5231/11685 cut-off events. [2024-11-28 05:20:03,230 INFO L125 PetriNetUnfolderBase]: For 3631/3636 co-relation queries the response was YES. [2024-11-28 05:20:03,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23034 conditions, 11685 events. 5231/11685 cut-off events. For 3631/3636 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 104828 event pairs, 553 based on Foata normal form. 160/10361 useless extension candidates. Maximal degree in co-relation 19904. Up to 6842 conditions per place. [2024-11-28 05:20:03,299 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 103 selfloop transitions, 6 changer transitions 0/156 dead transitions. [2024-11-28 05:20:03,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 156 transitions, 700 flow [2024-11-28 05:20:03,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:20:03,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:20:03,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-11-28 05:20:03,301 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6610576923076923 [2024-11-28 05:20:03,301 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 312 flow. Second operand 4 states and 275 transitions. [2024-11-28 05:20:03,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 156 transitions, 700 flow [2024-11-28 05:20:03,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 156 transitions, 696 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-28 05:20:03,314 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 324 flow [2024-11-28 05:20:03,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2024-11-28 05:20:03,317 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 15 predicate places. [2024-11-28 05:20:03,318 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 324 flow [2024-11-28 05:20:03,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-11-28 05:20:03,319 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:20:03,319 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 05:20:03,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:20:03,319 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-28 05:20:03,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:03,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1219094704, now seen corresponding path program 1 times [2024-11-28 05:20:03,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:03,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386316209] [2024-11-28 05:20:03,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:20:03,378 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:20:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:20:03,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:20:03,420 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:20:03,420 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-28 05:20:03,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-28 05:20:03,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-28 05:20:03,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-28 05:20:03,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-28 05:20:03,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-28 05:20:03,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-28 05:20:03,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:20:03,422 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 05:20:03,423 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 05:20:03,423 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 05:20:03,476 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 05:20:03,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 137 transitions, 301 flow [2024-11-28 05:20:03,515 INFO L124 PetriNetUnfolderBase]: 46/272 cut-off events. [2024-11-28 05:20:03,515 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 05:20:03,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 272 events. 46/272 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1124 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 190. Up to 12 conditions per place. [2024-11-28 05:20:03,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 137 transitions, 301 flow [2024-11-28 05:20:03,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 137 transitions, 301 flow [2024-11-28 05:20:03,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:20:03,527 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;@60e30e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:20:03,527 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-28 05:20:03,531 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:20:03,531 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-28 05:20:03,531 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:20:03,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:20:03,531 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 05:20:03,532 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-28 05:20:03,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:03,532 INFO L85 PathProgramCache]: Analyzing trace with hash 708790090, now seen corresponding path program 1 times [2024-11-28 05:20:03,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:03,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784511638] [2024-11-28 05:20:03,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:03,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:20:03,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:03,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784511638] [2024-11-28 05:20:03,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784511638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:03,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:03,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:20:03,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807147014] [2024-11-28 05:20:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:03,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:20:03,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:03,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:20:03,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:20:03,629 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-11-28 05:20:03,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 137 transitions, 301 flow. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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) [2024-11-28 05:20:03,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:20:03,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-11-28 05:20:03,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:20:16,810 INFO L124 PetriNetUnfolderBase]: 87851/154955 cut-off events. [2024-11-28 05:20:16,810 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2024-11-28 05:20:17,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275078 conditions, 154955 events. 87851/154955 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 3677. Compared 1614692 event pairs, 52468 based on Foata normal form. 31160/170369 useless extension candidates. Maximal degree in co-relation 17993. Up to 118961 conditions per place. [2024-11-28 05:20:17,609 INFO L140 encePairwiseOnDemand]: 111/137 looper letters, 78 selfloop transitions, 3 changer transitions 0/142 dead transitions. [2024-11-28 05:20:17,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 142 transitions, 473 flow [2024-11-28 05:20:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:20:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:20:17,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2024-11-28 05:20:17,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.656934306569343 [2024-11-28 05:20:17,611 INFO L175 Difference]: Start difference. First operand has 118 places, 137 transitions, 301 flow. Second operand 4 states and 360 transitions. [2024-11-28 05:20:17,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 142 transitions, 473 flow [2024-11-28 05:20:17,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 142 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:20:17,617 INFO L231 Difference]: Finished difference. Result has 123 places, 119 transitions, 285 flow [2024-11-28 05:20:17,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=123, PETRI_TRANSITIONS=119} [2024-11-28 05:20:17,617 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-11-28 05:20:17,618 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 119 transitions, 285 flow [2024-11-28 05:20:17,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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) [2024-11-28 05:20:17,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:20:17,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:17,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:20:17,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-28 05:20:17,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:17,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2079051900, now seen corresponding path program 1 times [2024-11-28 05:20:17,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:17,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255746538] [2024-11-28 05:20:17,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:17,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:20:17,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:17,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255746538] [2024-11-28 05:20:17,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255746538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:17,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:17,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:20:17,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599475959] [2024-11-28 05:20:17,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:17,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:20:17,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:17,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:20:17,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:20:17,710 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 137 [2024-11-28 05:20:17,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 119 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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) [2024-11-28 05:20:17,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:20:17,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 137 [2024-11-28 05:20:17,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:20:34,607 INFO L124 PetriNetUnfolderBase]: 124373/213784 cut-off events. [2024-11-28 05:20:34,607 INFO L125 PetriNetUnfolderBase]: For 7138/11655 co-relation queries the response was YES. [2024-11-28 05:20:35,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389248 conditions, 213784 events. 124373/213784 cut-off events. For 7138/11655 co-relation queries the response was YES. Maximal size of possible extension queue 4999. Compared 2236980 event pairs, 39414 based on Foata normal form. 3016/196622 useless extension candidates. Maximal degree in co-relation 389146. Up to 117315 conditions per place. [2024-11-28 05:20:36,021 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 174 selfloop transitions, 16 changer transitions 0/253 dead transitions. [2024-11-28 05:20:36,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 253 transitions, 1003 flow [2024-11-28 05:20:36,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:20:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 05:20:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 501 transitions. [2024-11-28 05:20:36,024 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7313868613138687 [2024-11-28 05:20:36,024 INFO L175 Difference]: Start difference. First operand has 123 places, 119 transitions, 285 flow. Second operand 5 states and 501 transitions. [2024-11-28 05:20:36,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 253 transitions, 1003 flow [2024-11-28 05:20:36,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 253 transitions, 999 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:20:36,039 INFO L231 Difference]: Finished difference. Result has 130 places, 134 transitions, 411 flow [2024-11-28 05:20:36,039 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=411, PETRI_PLACES=130, PETRI_TRANSITIONS=134} [2024-11-28 05:20:36,040 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 12 predicate places. [2024-11-28 05:20:36,040 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 134 transitions, 411 flow [2024-11-28 05:20:36,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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) [2024-11-28 05:20:36,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:20:36,040 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:36,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:20:36,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-28 05:20:36,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:36,041 INFO L85 PathProgramCache]: Analyzing trace with hash 875589605, now seen corresponding path program 1 times [2024-11-28 05:20:36,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:36,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557648622] [2024-11-28 05:20:36,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:36,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:20:36,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:36,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557648622] [2024-11-28 05:20:36,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557648622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:36,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:36,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:20:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982486849] [2024-11-28 05:20:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:36,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:20:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:36,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:20:36,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:20:36,226 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-11-28 05:20:36,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 134 transitions, 411 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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) [2024-11-28 05:20:36,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:20:36,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-11-28 05:20:36,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand