./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/twostage_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:34:18,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:34:18,773 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:34:18,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:34:18,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:34:18,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:34:18,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:34:18,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:34:18,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:34:18,807 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:34:18,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:34:18,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:34:18,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:34:18,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:34:18,811 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:34:18,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:34:18,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:34:18,812 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:34:18,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:34:18,813 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:34:18,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:34:18,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:34:18,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:34:18,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:34:18,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:34:18,818 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:34:18,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:34:18,819 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:34:18,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:34:18,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:34:18,819 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:34:18,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:34:18,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:34:18,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:34:18,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:34:18,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:34:18,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:34:18,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:34:18,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:34:18,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:34:18,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:34:18,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:34:18,824 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:34:18,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:34:18,825 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 [2024-11-17 07:34:19,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:34:19,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:34:19,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:34:19,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:34:19,095 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:34:19,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/twostage_3.i [2024-11-17 07:34:20,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:34:20,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:34:20,917 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/twostage_3.i [2024-11-17 07:34:20,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ad429f3/07492731272846639886612f10b159a6/FLAGfb47cf3eb [2024-11-17 07:34:20,965 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ad429f3/07492731272846639886612f10b159a6 [2024-11-17 07:34:20,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:34:20,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:34:20,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:34:20,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:34:20,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:34:20,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:34:20" (1/1) ... [2024-11-17 07:34:20,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45024ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:20, skipping insertion in model container [2024-11-17 07:34:20,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:34:20" (1/1) ... [2024-11-17 07:34:21,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:34:21,693 WARN L1684 CHandler]: Possible shadowing of function lock [2024-11-17 07:34:21,694 WARN L1684 CHandler]: Possible shadowing of function lock [2024-11-17 07:34:21,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:34:21,708 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:34:21,761 WARN L1684 CHandler]: Possible shadowing of function lock [2024-11-17 07:34:21,762 WARN L1684 CHandler]: Possible shadowing of function lock [2024-11-17 07:34:21,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:34:21,832 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:34:21,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21 WrapperNode [2024-11-17 07:34:21,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:34:21,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:34:21,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:34:21,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:34:21,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,890 INFO L138 Inliner]: procedures = 373, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 179 [2024-11-17 07:34:21,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:34:21,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:34:21,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:34:21,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:34:21,900 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,904 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,920 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-17 07:34:21,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,927 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:34:21,939 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:34:21,939 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:34:21,940 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:34:21,940 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (1/1) ... [2024-11-17 07:34:21,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:34:21,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:34:21,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:34:21,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:34:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-11-17 07:34:22,031 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-11-17 07:34:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-11-17 07:34:22,031 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-11-17 07:34:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:34:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:34:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:34:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:34:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:34:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:34:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:34:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:34:22,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:34:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:34:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:34:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:34:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:34:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:34:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:34:22,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:34:22,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:34:22,036 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:34:22,233 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:34:22,237 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:34:22,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1301: havoc main_~#tPool~0#1.base, main_~#tPool~0#1.offset; [2024-11-17 07:34:22,637 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1301-1: SUMMARY for call ULTIMATE.dealloc(main_~#tPool~0#1.base, main_~#tPool~0#1.offset); srcloc: null [2024-11-17 07:34:22,637 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1302: havoc main_~#rPool~0#1.base, main_~#rPool~0#1.offset; [2024-11-17 07:34:22,637 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1302-1: SUMMARY for call ULTIMATE.dealloc(main_~#rPool~0#1.base, main_~#rPool~0#1.offset); srcloc: null [2024-11-17 07:34:22,639 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:34:22,639 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:34:22,882 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:34:22,883 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:34:22,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:34:22 BoogieIcfgContainer [2024-11-17 07:34:22,883 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:34:22,887 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:34:22,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:34:22,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:34:22,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:34:20" (1/3) ... [2024-11-17 07:34:22,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16aeaa88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:34:22, skipping insertion in model container [2024-11-17 07:34:22,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:34:21" (2/3) ... [2024-11-17 07:34:22,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16aeaa88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:34:22, skipping insertion in model container [2024-11-17 07:34:22,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:34:22" (3/3) ... [2024-11-17 07:34:22,896 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-11-17 07:34:22,914 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:34:22,914 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-17 07:34:22,914 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:34:23,011 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 07:34:23,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 84 transitions, 188 flow [2024-11-17 07:34:23,111 INFO L124 PetriNetUnfolderBase]: 24/183 cut-off events. [2024-11-17 07:34:23,112 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-17 07:34:23,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 183 events. 24/183 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 758 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 98. Up to 8 conditions per place. [2024-11-17 07:34:23,119 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 84 transitions, 188 flow [2024-11-17 07:34:23,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 84 transitions, 188 flow [2024-11-17 07:34:23,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:34:23,149 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;@7661b318, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:34:23,149 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-17 07:34:23,154 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:34:23,155 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2024-11-17 07:34:23,155 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:34:23,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:23,156 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:34:23,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:34:23,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:23,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2121465748, now seen corresponding path program 1 times [2024-11-17 07:34:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369958204] [2024-11-17 07:34:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:23,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:23,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:23,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:23,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369958204] [2024-11-17 07:34:23,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369958204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:23,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:23,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:34:23,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999466215] [2024-11-17 07:34:23,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:23,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:34:23,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:23,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:34:23,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:34:23,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 84 [2024-11-17 07:34:23,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 84 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-11-17 07:34:23,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:23,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 84 [2024-11-17 07:34:23,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:24,558 INFO L124 PetriNetUnfolderBase]: 2373/5327 cut-off events. [2024-11-17 07:34:24,559 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2024-11-17 07:34:24,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9283 conditions, 5327 events. 2373/5327 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 42068 event pairs, 1391 based on Foata normal form. 500/5574 useless extension candidates. Maximal degree in co-relation 8264. Up to 2462 conditions per place. [2024-11-17 07:34:24,606 INFO L140 encePairwiseOnDemand]: 68/84 looper letters, 80 selfloop transitions, 10 changer transitions 2/126 dead transitions. [2024-11-17 07:34:24,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 126 transitions, 468 flow [2024-11-17 07:34:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:34:24,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:34:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-11-17 07:34:24,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-17 07:34:24,623 INFO L175 Difference]: Start difference. First operand has 80 places, 84 transitions, 188 flow. Second operand 4 states and 238 transitions. [2024-11-17 07:34:24,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 126 transitions, 468 flow [2024-11-17 07:34:24,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 126 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:34:24,639 INFO L231 Difference]: Finished difference. Result has 83 places, 82 transitions, 230 flow [2024-11-17 07:34:24,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=83, PETRI_TRANSITIONS=82} [2024-11-17 07:34:24,647 INFO L277 CegarLoopForPetriNet]: 80 programPoint places, 3 predicate places. [2024-11-17 07:34:24,647 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 82 transitions, 230 flow [2024-11-17 07:34:24,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-11-17 07:34:24,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:24,648 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:34:24,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:34:24,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:34:24,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:24,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1505651493, now seen corresponding path program 1 times [2024-11-17 07:34:24,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:24,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392529886] [2024-11-17 07:34:24,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:24,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:24,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:24,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:24,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392529886] [2024-11-17 07:34:24,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392529886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:24,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:24,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:34:24,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075332778] [2024-11-17 07:34:24,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:24,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:34:24,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:24,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:34:24,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:34:24,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 84 [2024-11-17 07:34:24,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 82 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2024-11-17 07:34:24,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:24,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 84 [2024-11-17 07:34:24,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:25,450 INFO L124 PetriNetUnfolderBase]: 2371/5365 cut-off events. [2024-11-17 07:34:25,451 INFO L125 PetriNetUnfolderBase]: For 1793/1793 co-relation queries the response was YES. [2024-11-17 07:34:25,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10507 conditions, 5365 events. 2371/5365 cut-off events. For 1793/1793 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 42507 event pairs, 998 based on Foata normal form. 260/5361 useless extension candidates. Maximal degree in co-relation 9330. Up to 2115 conditions per place. [2024-11-17 07:34:25,490 INFO L140 encePairwiseOnDemand]: 72/84 looper letters, 90 selfloop transitions, 10 changer transitions 0/132 dead transitions. [2024-11-17 07:34:25,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 132 transitions, 542 flow [2024-11-17 07:34:25,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:34:25,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:34:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-11-17 07:34:25,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-17 07:34:25,493 INFO L175 Difference]: Start difference. First operand has 83 places, 82 transitions, 230 flow. Second operand 4 states and 238 transitions. [2024-11-17 07:34:25,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 132 transitions, 542 flow [2024-11-17 07:34:25,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 132 transitions, 540 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:34:25,502 INFO L231 Difference]: Finished difference. Result has 83 places, 80 transitions, 244 flow [2024-11-17 07:34:25,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=83, PETRI_TRANSITIONS=80} [2024-11-17 07:34:25,503 INFO L277 CegarLoopForPetriNet]: 80 programPoint places, 3 predicate places. [2024-11-17 07:34:25,504 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 80 transitions, 244 flow [2024-11-17 07:34:25,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2024-11-17 07:34:25,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:25,504 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:34:25,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:34:25,505 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:34:25,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:25,506 INFO L85 PathProgramCache]: Analyzing trace with hash 130415943, now seen corresponding path program 1 times [2024-11-17 07:34:25,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:25,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113296904] [2024-11-17 07:34:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:25,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:34:25,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:34:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:34:25,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:34:25,593 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:34:25,594 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-17 07:34:25,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-17 07:34:25,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-17 07:34:25,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-17 07:34:25,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-17 07:34:25,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-17 07:34:25,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-17 07:34:25,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-17 07:34:25,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-17 07:34:25,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-17 07:34:25,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-17 07:34:25,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-11-17 07:34:25,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-17 07:34:25,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-17 07:34:25,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-17 07:34:25,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-17 07:34:25,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-17 07:34:25,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-17 07:34:25,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:34:25,602 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-17 07:34:25,607 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:34:25,607 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-17 07:34:25,687 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-17 07:34:25,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 125 transitions, 294 flow [2024-11-17 07:34:25,748 INFO L124 PetriNetUnfolderBase]: 107/629 cut-off events. [2024-11-17 07:34:25,748 INFO L125 PetriNetUnfolderBase]: For 72/77 co-relation queries the response was YES. [2024-11-17 07:34:25,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 629 events. 107/629 cut-off events. For 72/77 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3744 event pairs, 1 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 378. Up to 32 conditions per place. [2024-11-17 07:34:25,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 125 transitions, 294 flow [2024-11-17 07:34:25,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 125 transitions, 294 flow [2024-11-17 07:34:25,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:34:25,764 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;@7661b318, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:34:25,765 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-17 07:34:25,767 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:34:25,767 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2024-11-17 07:34:25,768 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:34:25,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:25,768 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:34:25,768 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [funcAErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, funcAErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-17 07:34:25,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:25,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1465297175, now seen corresponding path program 1 times [2024-11-17 07:34:25,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:25,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22799122] [2024-11-17 07:34:25,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:25,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:25,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:25,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22799122] [2024-11-17 07:34:25,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22799122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:25,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:25,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:34:25,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740731584] [2024-11-17 07:34:25,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:25,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:34:25,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:25,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:34:25,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:34:25,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2024-11-17 07:34:25,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 294 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) [2024-11-17 07:34:25,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:25,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2024-11-17 07:34:25,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand