./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.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/goblint-regression/28-race_reach_92-evilcollapse_racing.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 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:49:59,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:49:59,899 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:49:59,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:49:59,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:49:59,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:49:59,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:49:59,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:49:59,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:49:59,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:49:59,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:49:59,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:49:59,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:49:59,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:49:59,945 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:49:59,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:49:59,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:49:59,946 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:49:59,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:49:59,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:49:59,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:49:59,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:49:59,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:49:59,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:49:59,948 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:49:59,948 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:49:59,949 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:49:59,949 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:49:59,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:49:59,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:49:59,950 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:49:59,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:49:59,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:49:59,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:49:59,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:59,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:49:59,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:49:59,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:49:59,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:49:59,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:49:59,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:49:59,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:49:59,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:49:59,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:49:59,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-11-17 07:50:00,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:50:00,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:50:00,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:50:00,234 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:50:00,234 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:50:00,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-17 07:50:01,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:50:02,009 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:50:02,009 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-17 07:50:02,034 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2df652b/d760c4ad84a744e0bc2da2da4e9203d3/FLAGeaab6bf99 [2024-11-17 07:50:02,052 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2df652b/d760c4ad84a744e0bc2da2da4e9203d3 [2024-11-17 07:50:02,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:50:02,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:50:02,061 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:50:02,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:50:02,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:50:02,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5815e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02, skipping insertion in model container [2024-11-17 07:50:02,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,127 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:50:02,654 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,655 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,655 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,655 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:50:02,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:50:02,786 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,787 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,787 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,788 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:50:02,866 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:50:02,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02 WrapperNode [2024-11-17 07:50:02,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:50:02,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:50:02,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:50:02,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:50:02,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,944 INFO L138 Inliner]: procedures = 280, calls = 136, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 321 [2024-11-17 07:50:02,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:50:02,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:50:02,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:50:02,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:50:02,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,973 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:03,018 INFO L175 MemorySlicer]: Split 110 memory accesses to 4 slices as follows [2, 5, 101, 2]. 92 percent of accesses are in the largest equivalence class. The 87 initializations are split as follows [2, 5, 80, 0]. The 13 writes are split as follows [0, 0, 12, 1]. [2024-11-17 07:50:03,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:03,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:03,040 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:03,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:03,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:03,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:03,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:50:03,061 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:50:03,061 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:50:03,061 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:50:03,062 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:03,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:50:03,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:03,098 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 07:50:03,101 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 07:50:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:50:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 07:50:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 07:50:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 07:50:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-17 07:50:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:50:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-17 07:50:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-17 07:50:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-17 07:50:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-17 07:50:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:50:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:50:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:50:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:50:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:50:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:50:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:50:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:50:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:50:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:50:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:50:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:50:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 07:50:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 07:50:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 07:50:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-17 07:50:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:50:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:50:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:50:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:50:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:50:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:50:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:50:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:50:03,157 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 07:50:03,315 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:50:03,316 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:50:03,721 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-17 07:50:03,721 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-17 07:50:03,816 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:50:03,817 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:50:04,482 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:50:04,483 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:50:04,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:50:04 BoogieIcfgContainer [2024-11-17 07:50:04,484 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:50:04,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:50:04,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:50:04,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:50:04,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:50:02" (1/3) ... [2024-11-17 07:50:04,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a8f757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:50:04, skipping insertion in model container [2024-11-17 07:50:04,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (2/3) ... [2024-11-17 07:50:04,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a8f757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:50:04, skipping insertion in model container [2024-11-17 07:50:04,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:50:04" (3/3) ... [2024-11-17 07:50:04,495 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-11-17 07:50:04,513 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:50:04,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-17 07:50:04,514 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:50:04,587 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 07:50:04,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 107 transitions, 221 flow [2024-11-17 07:50:04,683 INFO L124 PetriNetUnfolderBase]: 24/117 cut-off events. [2024-11-17 07:50:04,684 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:50:04,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 117 events. 24/117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 341 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 76. Up to 4 conditions per place. [2024-11-17 07:50:04,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 107 transitions, 221 flow [2024-11-17 07:50:04,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 106 transitions, 219 flow [2024-11-17 07:50:04,702 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:50:04,711 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;@6790da61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:50:04,711 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-17 07:50:04,720 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:50:04,721 INFO L124 PetriNetUnfolderBase]: 3/17 cut-off events. [2024-11-17 07:50:04,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:50:04,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:04,722 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:50:04,723 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:04,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:04,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2101866105, now seen corresponding path program 1 times [2024-11-17 07:50:04,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:04,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894505999] [2024-11-17 07:50:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:04,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 07:50:04,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729715363] [2024-11-17 07:50:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:04,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:04,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:04,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:04,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:50:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:05,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 07:50:05,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:05,130 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 07:50:05,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:50:05,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:05,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894505999] [2024-11-17 07:50:05,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 07:50:05,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729715363] [2024-11-17 07:50:05,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729715363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:05,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:05,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:50:05,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104413959] [2024-11-17 07:50:05,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:05,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:50:05,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:50:05,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:50:05,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-11-17 07:50:05,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:05,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:05,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-11-17 07:50:05,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:05,443 INFO L124 PetriNetUnfolderBase]: 121/459 cut-off events. [2024-11-17 07:50:05,444 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:50:05,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 459 events. 121/459 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2484 event pairs, 100 based on Foata normal form. 115/525 useless extension candidates. Maximal degree in co-relation 644. Up to 254 conditions per place. [2024-11-17 07:50:05,448 INFO L140 encePairwiseOnDemand]: 86/107 looper letters, 42 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-11-17 07:50:05,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 285 flow [2024-11-17 07:50:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:50:05,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:50:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-17 07:50:05,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6791277258566978 [2024-11-17 07:50:05,465 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 219 flow. Second operand 3 states and 218 transitions. [2024-11-17 07:50:05,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 285 flow [2024-11-17 07:50:05,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 285 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:50:05,475 INFO L231 Difference]: Finished difference. Result has 91 places, 91 transitions, 203 flow [2024-11-17 07:50:05,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=91, PETRI_TRANSITIONS=91} [2024-11-17 07:50:05,484 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2024-11-17 07:50:05,484 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 91 transitions, 203 flow [2024-11-17 07:50:05,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:05,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:05,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:05,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:50:05,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-17 07:50:05,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:05,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash -733339471, now seen corresponding path program 1 times [2024-11-17 07:50:05,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:05,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661289715] [2024-11-17 07:50:05,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:05,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:05,873 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 07:50:05,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:05,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661289715] [2024-11-17 07:50:05,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661289715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:05,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:05,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:50:05,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339134341] [2024-11-17 07:50:05,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:05,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:50:05,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:50:05,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:50:05,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-11-17 07:50:05,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 07:50:05,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:05,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-11-17 07:50:05,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:06,142 INFO L124 PetriNetUnfolderBase]: 121/475 cut-off events. [2024-11-17 07:50:06,142 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-17 07:50:06,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 475 events. 121/475 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2547 event pairs, 100 based on Foata normal form. 4/432 useless extension candidates. Maximal degree in co-relation 711. Up to 260 conditions per place. [2024-11-17 07:50:06,149 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 40 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-11-17 07:50:06,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 291 flow [2024-11-17 07:50:06,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:50:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:50:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-11-17 07:50:06,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6137071651090342 [2024-11-17 07:50:06,154 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 203 flow. Second operand 3 states and 197 transitions. [2024-11-17 07:50:06,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 291 flow [2024-11-17 07:50:06,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:50:06,157 INFO L231 Difference]: Finished difference. Result has 93 places, 92 transitions, 217 flow [2024-11-17 07:50:06,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=93, PETRI_TRANSITIONS=92} [2024-11-17 07:50:06,159 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-17 07:50:06,159 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 92 transitions, 217 flow [2024-11-17 07:50:06,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 07:50:06,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:06,160 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:06,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:50:06,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:06,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:06,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1258674978, now seen corresponding path program 1 times [2024-11-17 07:50:06,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:06,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233553491] [2024-11-17 07:50:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:06,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:06,336 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 07:50:06,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:06,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233553491] [2024-11-17 07:50:06,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233553491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:06,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:06,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:50:06,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120646883] [2024-11-17 07:50:06,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:06,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:06,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:06,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:06,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:06,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-11-17 07:50:06,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 92 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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 07:50:06,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:06,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-11-17 07:50:06,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:06,681 INFO L124 PetriNetUnfolderBase]: 121/471 cut-off events. [2024-11-17 07:50:06,681 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-17 07:50:06,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 471 events. 121/471 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2530 event pairs, 100 based on Foata normal form. 4/432 useless extension candidates. Maximal degree in co-relation 697. Up to 264 conditions per place. [2024-11-17 07:50:06,685 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 41 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2024-11-17 07:50:06,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 93 transitions, 307 flow [2024-11-17 07:50:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:06,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2024-11-17 07:50:06,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5630841121495327 [2024-11-17 07:50:06,689 INFO L175 Difference]: Start difference. First operand has 93 places, 92 transitions, 217 flow. Second operand 4 states and 241 transitions. [2024-11-17 07:50:06,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 93 transitions, 307 flow [2024-11-17 07:50:06,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 93 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:50:06,694 INFO L231 Difference]: Finished difference. Result has 97 places, 93 transitions, 233 flow [2024-11-17 07:50:06,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=97, PETRI_TRANSITIONS=93} [2024-11-17 07:50:06,695 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-17 07:50:06,696 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 93 transitions, 233 flow [2024-11-17 07:50:06,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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 07:50:06,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:06,697 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:06,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:50:06,697 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:06,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:06,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1777713953, now seen corresponding path program 1 times [2024-11-17 07:50:06,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:06,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888559156] [2024-11-17 07:50:06,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:06,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:06,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:06,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888559156] [2024-11-17 07:50:06,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888559156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:06,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802029972] [2024-11-17 07:50:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:06,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:06,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:06,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:06,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:50:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:07,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:50:07,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:07,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:07,080 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:07,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:07,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802029972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:07,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:07,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-17 07:50:07,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694050102] [2024-11-17 07:50:07,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:07,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:50:07,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:07,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:50:07,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:50:07,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-17 07:50:07,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 93 transitions, 233 flow. Second operand has 10 states, 10 states have (on average 49.6) internal successors, (496), 10 states have internal predecessors, (496), 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 07:50:07,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:07,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-17 07:50:07,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:07,662 INFO L124 PetriNetUnfolderBase]: 121/491 cut-off events. [2024-11-17 07:50:07,662 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-11-17 07:50:07,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 491 events. 121/491 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2611 event pairs, 100 based on Foata normal form. 6/454 useless extension candidates. Maximal degree in co-relation 718. Up to 254 conditions per place. [2024-11-17 07:50:07,665 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 44 selfloop transitions, 9 changer transitions 0/101 dead transitions. [2024-11-17 07:50:07,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 101 transitions, 369 flow [2024-11-17 07:50:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 07:50:07,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 07:50:07,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 487 transitions. [2024-11-17 07:50:07,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.505711318795431 [2024-11-17 07:50:07,668 INFO L175 Difference]: Start difference. First operand has 97 places, 93 transitions, 233 flow. Second operand 9 states and 487 transitions. [2024-11-17 07:50:07,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 101 transitions, 369 flow [2024-11-17 07:50:07,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:07,672 INFO L231 Difference]: Finished difference. Result has 107 places, 97 transitions, 283 flow [2024-11-17 07:50:07,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=283, PETRI_PLACES=107, PETRI_TRANSITIONS=97} [2024-11-17 07:50:07,673 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2024-11-17 07:50:07,673 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 283 flow [2024-11-17 07:50:07,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.6) internal successors, (496), 10 states have internal predecessors, (496), 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 07:50:07,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:07,674 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:07,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:50:07,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-17 07:50:07,875 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:07,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash -725430162, now seen corresponding path program 1 times [2024-11-17 07:50:07,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:07,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623463858] [2024-11-17 07:50:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:07,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:08,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:08,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623463858] [2024-11-17 07:50:08,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623463858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:08,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127007598] [2024-11-17 07:50:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:08,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:08,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:08,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:08,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:50:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:08,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:50:08,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:08,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:50:08,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127007598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:08,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:50:08,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-17 07:50:08,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356072504] [2024-11-17 07:50:08,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:08,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:50:08,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:08,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:50:08,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-17 07:50:08,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2024-11-17 07:50:08,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 97 transitions, 283 flow. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 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 07:50:08,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:08,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2024-11-17 07:50:08,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:08,557 INFO L124 PetriNetUnfolderBase]: 121/487 cut-off events. [2024-11-17 07:50:08,558 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-17 07:50:08,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 846 conditions, 487 events. 121/487 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2615 event pairs, 100 based on Foata normal form. 4/448 useless extension candidates. Maximal degree in co-relation 736. Up to 250 conditions per place. [2024-11-17 07:50:08,561 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 36 selfloop transitions, 8 changer transitions 0/95 dead transitions. [2024-11-17 07:50:08,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 95 transitions, 357 flow [2024-11-17 07:50:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:08,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:08,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-17 07:50:08,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5607476635514018 [2024-11-17 07:50:08,563 INFO L175 Difference]: Start difference. First operand has 107 places, 97 transitions, 283 flow. Second operand 4 states and 240 transitions. [2024-11-17 07:50:08,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 95 transitions, 357 flow [2024-11-17 07:50:08,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 95 transitions, 349 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:08,567 INFO L231 Difference]: Finished difference. Result has 105 places, 95 transitions, 277 flow [2024-11-17 07:50:08,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=105, PETRI_TRANSITIONS=95} [2024-11-17 07:50:08,568 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 17 predicate places. [2024-11-17 07:50:08,568 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 95 transitions, 277 flow [2024-11-17 07:50:08,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 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 07:50:08,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:08,569 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-17 07:50:08,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:50:08,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:08,771 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:08,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1435405672, now seen corresponding path program 1 times [2024-11-17 07:50:08,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:08,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011869858] [2024-11-17 07:50:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:08,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-17 07:50:08,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:08,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011869858] [2024-11-17 07:50:08,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011869858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:08,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:08,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:50:08,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130051627] [2024-11-17 07:50:08,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:08,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:08,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:08,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:08,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:08,979 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2024-11-17 07:50:08,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 95 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 07:50:08,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:08,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2024-11-17 07:50:08,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:09,167 INFO L124 PetriNetUnfolderBase]: 121/485 cut-off events. [2024-11-17 07:50:09,167 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-11-17 07:50:09,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 485 events. 121/485 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2601 event pairs, 100 based on Foata normal form. 2/444 useless extension candidates. Maximal degree in co-relation 742. Up to 258 conditions per place. [2024-11-17 07:50:09,170 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 36 selfloop transitions, 9 changer transitions 0/95 dead transitions. [2024-11-17 07:50:09,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 95 transitions, 365 flow [2024-11-17 07:50:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:09,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-17 07:50:09,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5607476635514018 [2024-11-17 07:50:09,172 INFO L175 Difference]: Start difference. First operand has 105 places, 95 transitions, 277 flow. Second operand 4 states and 240 transitions. [2024-11-17 07:50:09,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 95 transitions, 365 flow [2024-11-17 07:50:09,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 345 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:50:09,176 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 281 flow [2024-11-17 07:50:09,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=281, PETRI_PLACES=103, PETRI_TRANSITIONS=95} [2024-11-17 07:50:09,178 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 15 predicate places. [2024-11-17 07:50:09,179 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 281 flow [2024-11-17 07:50:09,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 07:50:09,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:09,179 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:09,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:50:09,180 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:09,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:09,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1513442305, now seen corresponding path program 2 times [2024-11-17 07:50:09,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:09,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747616899] [2024-11-17 07:50:09,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:09,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:09,391 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 07:50:09,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:09,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747616899] [2024-11-17 07:50:09,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747616899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:09,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:09,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:50:09,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998768335] [2024-11-17 07:50:09,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:09,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:09,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:09,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:09,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:09,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-11-17 07:50:09,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 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 07:50:09,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:09,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-11-17 07:50:09,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:09,618 INFO L124 PetriNetUnfolderBase]: 121/483 cut-off events. [2024-11-17 07:50:09,618 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-17 07:50:09,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 483 events. 121/483 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2584 event pairs, 100 based on Foata normal form. 2/444 useless extension candidates. Maximal degree in co-relation 722. Up to 262 conditions per place. [2024-11-17 07:50:09,620 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 51 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2024-11-17 07:50:09,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 103 transitions, 451 flow [2024-11-17 07:50:09,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:09,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:09,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-11-17 07:50:09,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5700934579439252 [2024-11-17 07:50:09,622 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 281 flow. Second operand 4 states and 244 transitions. [2024-11-17 07:50:09,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 103 transitions, 451 flow [2024-11-17 07:50:09,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 427 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:09,625 INFO L231 Difference]: Finished difference. Result has 106 places, 96 transitions, 285 flow [2024-11-17 07:50:09,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=106, PETRI_TRANSITIONS=96} [2024-11-17 07:50:09,626 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2024-11-17 07:50:09,626 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 96 transitions, 285 flow [2024-11-17 07:50:09,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 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 07:50:09,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:09,626 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:09,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:50:09,627 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:09,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:09,627 INFO L85 PathProgramCache]: Analyzing trace with hash 328668533, now seen corresponding path program 1 times [2024-11-17 07:50:09,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:09,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902958401] [2024-11-17 07:50:09,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:09,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 07:50:09,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:09,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902958401] [2024-11-17 07:50:09,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902958401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:09,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651457983] [2024-11-17 07:50:09,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:09,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:09,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:09,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:09,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:50:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:10,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:50:10,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:10,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651457983] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:10,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:10,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-11-17 07:50:10,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421762142] [2024-11-17 07:50:10,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:10,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 07:50:10,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:10,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 07:50:10,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-17 07:50:10,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 107 [2024-11-17 07:50:10,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 96 transitions, 285 flow. Second operand has 19 states, 19 states have (on average 47.0) internal successors, (893), 19 states have internal predecessors, (893), 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 07:50:10,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:10,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 107 [2024-11-17 07:50:10,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:11,595 INFO L124 PetriNetUnfolderBase]: 126/603 cut-off events. [2024-11-17 07:50:11,595 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-17 07:50:11,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1230 conditions, 603 events. 126/603 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2783 event pairs, 100 based on Foata normal form. 13/575 useless extension candidates. Maximal degree in co-relation 1067. Up to 253 conditions per place. [2024-11-17 07:50:11,599 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 83 selfloop transitions, 55 changer transitions 0/183 dead transitions. [2024-11-17 07:50:11,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 183 transitions, 1167 flow [2024-11-17 07:50:11,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-17 07:50:11,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-17 07:50:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 2131 transitions. [2024-11-17 07:50:11,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4526338147833475 [2024-11-17 07:50:11,605 INFO L175 Difference]: Start difference. First operand has 106 places, 96 transitions, 285 flow. Second operand 44 states and 2131 transitions. [2024-11-17 07:50:11,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 183 transitions, 1167 flow [2024-11-17 07:50:11,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 183 transitions, 1163 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:11,610 INFO L231 Difference]: Finished difference. Result has 164 places, 144 transitions, 851 flow [2024-11-17 07:50:11,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=851, PETRI_PLACES=164, PETRI_TRANSITIONS=144} [2024-11-17 07:50:11,613 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 76 predicate places. [2024-11-17 07:50:11,613 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 144 transitions, 851 flow [2024-11-17 07:50:11,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.0) internal successors, (893), 19 states have internal predecessors, (893), 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 07:50:11,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:11,615 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 9, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:11,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:50:11,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:11,816 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:11,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash -990405572, now seen corresponding path program 1 times [2024-11-17 07:50:11,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:11,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630739808] [2024-11-17 07:50:11,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:11,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:12,663 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:12,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:12,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630739808] [2024-11-17 07:50:12,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630739808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:12,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134736085] [2024-11-17 07:50:12,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:12,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:12,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:12,666 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:12,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:50:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:13,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 07:50:13,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:13,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:13,457 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:13,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134736085] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:13,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:13,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-17 07:50:13,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688586584] [2024-11-17 07:50:13,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:13,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-17 07:50:13,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:13,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-17 07:50:13,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-17 07:50:13,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-17 07:50:13,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 144 transitions, 851 flow. Second operand has 34 states, 34 states have (on average 49.705882352941174) internal successors, (1690), 34 states have internal predecessors, (1690), 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 07:50:13,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:13,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-17 07:50:13,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:15,138 INFO L124 PetriNetUnfolderBase]: 122/779 cut-off events. [2024-11-17 07:50:15,139 INFO L125 PetriNetUnfolderBase]: For 5740/5740 co-relation queries the response was YES. [2024-11-17 07:50:15,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2180 conditions, 779 events. 122/779 cut-off events. For 5740/5740 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2879 event pairs, 100 based on Foata normal form. 24/762 useless extension candidates. Maximal degree in co-relation 1760. Up to 258 conditions per place. [2024-11-17 07:50:15,144 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 113 selfloop transitions, 93 changer transitions 0/254 dead transitions. [2024-11-17 07:50:15,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 254 transitions, 2511 flow [2024-11-17 07:50:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-17 07:50:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-17 07:50:15,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1605 transitions. [2024-11-17 07:50:15,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4838709677419355 [2024-11-17 07:50:15,151 INFO L175 Difference]: Start difference. First operand has 164 places, 144 transitions, 851 flow. Second operand 31 states and 1605 transitions. [2024-11-17 07:50:15,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 254 transitions, 2511 flow [2024-11-17 07:50:15,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 254 transitions, 2283 flow, removed 100 selfloop flow, removed 6 redundant places. [2024-11-17 07:50:15,175 INFO L231 Difference]: Finished difference. Result has 197 places, 195 transitions, 1461 flow [2024-11-17 07:50:15,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1461, PETRI_PLACES=197, PETRI_TRANSITIONS=195} [2024-11-17 07:50:15,177 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 109 predicate places. [2024-11-17 07:50:15,178 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 195 transitions, 1461 flow [2024-11-17 07:50:15,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 49.705882352941174) internal successors, (1690), 34 states have internal predecessors, (1690), 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 07:50:15,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:15,179 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 17, 16, 16, 16, 16, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:15,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 07:50:15,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:15,380 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:15,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash 327868348, now seen corresponding path program 2 times [2024-11-17 07:50:15,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:15,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538879414] [2024-11-17 07:50:15,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:15,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:17,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:17,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538879414] [2024-11-17 07:50:17,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538879414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:17,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178279044] [2024-11-17 07:50:17,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:50:17,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:17,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:17,421 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:17,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:50:18,137 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 07:50:18,137 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:50:18,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-17 07:50:18,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:18,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:19,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178279044] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:19,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:19,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-17 07:50:19,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257827761] [2024-11-17 07:50:19,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:19,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-17 07:50:19,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:19,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-17 07:50:19,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-17 07:50:19,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-17 07:50:19,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 195 transitions, 1461 flow. Second operand has 63 states, 63 states have (on average 49.63492063492063) internal successors, (3127), 63 states have internal predecessors, (3127), 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 07:50:19,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:19,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-17 07:50:19,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:22,163 INFO L124 PetriNetUnfolderBase]: 122/1109 cut-off events. [2024-11-17 07:50:22,163 INFO L125 PetriNetUnfolderBase]: For 19703/19703 co-relation queries the response was YES. [2024-11-17 07:50:22,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3763 conditions, 1109 events. 122/1109 cut-off events. For 19703/19703 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3010 event pairs, 100 based on Foata normal form. 45/1113 useless extension candidates. Maximal degree in co-relation 3070. Up to 258 conditions per place. [2024-11-17 07:50:22,172 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 203 selfloop transitions, 183 changer transitions 0/434 dead transitions. [2024-11-17 07:50:22,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 434 transitions, 5224 flow [2024-11-17 07:50:22,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-17 07:50:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-17 07:50:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 3127 transitions. [2024-11-17 07:50:22,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4790868699249272 [2024-11-17 07:50:22,181 INFO L175 Difference]: Start difference. First operand has 197 places, 195 transitions, 1461 flow. Second operand 61 states and 3127 transitions. [2024-11-17 07:50:22,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 434 transitions, 5224 flow [2024-11-17 07:50:22,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 434 transitions, 5120 flow, removed 16 selfloop flow, removed 12 redundant places. [2024-11-17 07:50:22,218 INFO L231 Difference]: Finished difference. Result has 261 places, 288 transitions, 2965 flow [2024-11-17 07:50:22,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=2965, PETRI_PLACES=261, PETRI_TRANSITIONS=288} [2024-11-17 07:50:22,219 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 173 predicate places. [2024-11-17 07:50:22,219 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 288 transitions, 2965 flow [2024-11-17 07:50:22,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 49.63492063492063) internal successors, (3127), 63 states have internal predecessors, (3127), 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 07:50:22,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:22,221 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 32, 31, 31, 31, 31, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:22,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-17 07:50:22,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:22,421 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:22,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:22,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1506196404, now seen corresponding path program 3 times [2024-11-17 07:50:22,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:22,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158341351] [2024-11-17 07:50:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:22,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 07:51:19,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301433333] [2024-11-17 07:51:19,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 07:51:19,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:51:19,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:51:19,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:51:19,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 07:51:19,772 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-17 07:51:19,772 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:51:19,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:51:19,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:51:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2949 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked. [2024-11-17 07:51:20,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:51:20,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:20,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158341351] [2024-11-17 07:51:20,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 07:51:20,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301433333] [2024-11-17 07:51:20,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301433333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:20,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:20,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:51:20,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229375389] [2024-11-17 07:51:20,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:20,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 07:51:20,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:20,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 07:51:20,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-17 07:51:20,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 107 [2024-11-17 07:51:20,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 288 transitions, 2965 flow. Second operand has 9 states, 9 states have (on average 46.55555555555556) internal successors, (419), 9 states have internal predecessors, (419), 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 07:51:20,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:20,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 107 [2024-11-17 07:51:20,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:20,865 INFO L124 PetriNetUnfolderBase]: 122/1049 cut-off events. [2024-11-17 07:51:20,865 INFO L125 PetriNetUnfolderBase]: For 10271/10271 co-relation queries the response was YES. [2024-11-17 07:51:20,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3821 conditions, 1049 events. 122/1049 cut-off events. For 10271/10271 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2773 event pairs, 100 based on Foata normal form. 60/1068 useless extension candidates. Maximal degree in co-relation 3112. Up to 245 conditions per place. [2024-11-17 07:51:20,874 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 108 selfloop transitions, 137 changer transitions 0/290 dead transitions. [2024-11-17 07:51:20,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 290 transitions, 3547 flow [2024-11-17 07:51:20,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 07:51:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-17 07:51:20,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 548 transitions. [2024-11-17 07:51:20,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46559048428207306 [2024-11-17 07:51:20,877 INFO L175 Difference]: Start difference. First operand has 261 places, 288 transitions, 2965 flow. Second operand 11 states and 548 transitions. [2024-11-17 07:51:20,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 290 transitions, 3547 flow [2024-11-17 07:51:20,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 290 transitions, 3287 flow, removed 46 selfloop flow, removed 28 redundant places. [2024-11-17 07:51:20,932 INFO L231 Difference]: Finished difference. Result has 242 places, 288 transitions, 3062 flow [2024-11-17 07:51:20,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=2695, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3062, PETRI_PLACES=242, PETRI_TRANSITIONS=288} [2024-11-17 07:51:20,933 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 154 predicate places. [2024-11-17 07:51:20,933 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 288 transitions, 3062 flow [2024-11-17 07:51:20,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.55555555555556) internal successors, (419), 9 states have internal predecessors, (419), 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 07:51:20,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:20,934 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 31, 31, 31, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:20,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 07:51:21,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:51:21,138 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:51:21,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:21,138 INFO L85 PathProgramCache]: Analyzing trace with hash 552552442, now seen corresponding path program 1 times [2024-11-17 07:51:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:21,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351086348] [2024-11-17 07:51:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:21,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms