./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 023d838f 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-023d838-m [2024-11-10 22:20:31,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:20:31,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:20:31,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:20:31,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:20:31,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:20:31,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:20:31,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:20:31,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:20:31,370 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:20:31,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:20:31,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:20:31,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:20:31,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:20:31,371 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:20:31,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:20:31,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:20:31,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:20:31,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:20:31,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:20:31,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:20:31,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:20:31,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:20:31,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:20:31,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:20:31,383 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:20:31,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:20:31,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:20:31,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:20:31,384 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:20:31,384 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:20:31,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:20:31,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:20:31,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:20:31,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:20:31,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:20:31,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:20:31,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:20:31,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:20:31,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:20:31,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:20:31,388 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:20:31,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:20:31,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:20:31,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-11-10 22:20:31,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:20:31,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:20:31,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:20:31,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:20:31,648 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:20:31,649 INFO L431 ainManager$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 [2024-11-10 22:20:33,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:20:33,421 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:20:33,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-10 22:20:33,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9140e4229/8bad510ec91249378cee4c3dc7568f21/FLAGbad861778 [2024-11-10 22:20:33,456 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9140e4229/8bad510ec91249378cee4c3dc7568f21 [2024-11-10 22:20:33,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:20:33,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:20:33,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:20:33,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:20:33,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:20:33,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:20:33" (1/1) ... [2024-11-10 22:20:33,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d07167c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:33, skipping insertion in model container [2024-11-10 22:20:33,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:20:33" (1/1) ... [2024-11-10 22:20:33,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:20:33,959 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:20:33,959 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:20:33,960 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:20:33,961 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:20:33,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:20:34,031 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:20:34,070 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:20:34,070 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:20:34,071 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:20:34,071 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:20:34,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:20:34,147 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:20:34,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34 WrapperNode [2024-11-10 22:20:34,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:20:34,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:20:34,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:20:34,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:20:34,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,210 INFO L138 Inliner]: procedures = 280, calls = 136, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 321 [2024-11-10 22:20:34,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:20:34,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:20:34,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:20:34,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:20:34,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,266 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]. [2024-11-10 22:20:34,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,281 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,290 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:20:34,299 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:20:34,299 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:20:34,299 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:20:34,300 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (1/1) ... [2024-11-10 22:20:34,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:20:34,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:34,336 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) [2024-11-10 22:20:34,339 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 [2024-11-10 22:20:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 22:20:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:20:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 22:20:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 22:20:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:20:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:20:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:20:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 22:20:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:20:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:20:34,401 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:20:34,579 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:20:34,581 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:20:35,032 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 22:20:35,032 INFO L1247 $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 [2024-11-10 22:20:35,203 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:20:35,203 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:20:35,887 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:20:35,888 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:20:35,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:35 BoogieIcfgContainer [2024-11-10 22:20:35,888 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:20:35,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:20:35,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:20:35,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:20:35,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:20:33" (1/3) ... [2024-11-10 22:20:35,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1f424f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:20:35, skipping insertion in model container [2024-11-10 22:20:35,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:34" (2/3) ... [2024-11-10 22:20:35,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1f424f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:20:35, skipping insertion in model container [2024-11-10 22:20:35,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:35" (3/3) ... [2024-11-10 22:20:35,899 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-11-10 22:20:35,917 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:20:35,917 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-10 22:20:35,917 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:20:35,986 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 22:20:36,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 107 transitions, 221 flow [2024-11-10 22:20:36,082 INFO L124 PetriNetUnfolderBase]: 24/117 cut-off events. [2024-11-10 22:20:36,083 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:20:36,087 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. [2024-11-10 22:20:36,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 107 transitions, 221 flow [2024-11-10 22:20:36,093 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 106 transitions, 219 flow [2024-11-10 22:20:36,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:20:36,117 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;@64ecb3cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:20:36,117 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-10 22:20:36,130 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:20:36,130 INFO L124 PetriNetUnfolderBase]: 3/17 cut-off events. [2024-11-10 22:20:36,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:20:36,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:36,132 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:20:36,133 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)] === [2024-11-10 22:20:36,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:36,138 INFO L85 PathProgramCache]: Analyzing trace with hash -2101866105, now seen corresponding path program 1 times [2024-11-10 22:20:36,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:36,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780086158] [2024-11-10 22:20:36,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:36,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 22:20:36,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939192258] [2024-11-10 22:20:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:36,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:36,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:36,343 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) [2024-11-10 22:20:36,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:20:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:36,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 22:20:36,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:36,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:20:36,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:36,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780086158] [2024-11-10 22:20:36,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 22:20:36,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939192258] [2024-11-10 22:20:36,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939192258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:36,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:36,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:20:36,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645414535] [2024-11-10 22:20:36,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:36,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:20:36,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:20:36,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:20:36,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-11-10 22:20:36,619 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) [2024-11-10 22:20:36,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:36,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-11-10 22:20:36,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:36,892 INFO L124 PetriNetUnfolderBase]: 121/459 cut-off events. [2024-11-10 22:20:36,892 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:20:36,894 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. [2024-11-10 22:20:36,898 INFO L140 encePairwiseOnDemand]: 86/107 looper letters, 42 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-11-10 22:20:36,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 285 flow [2024-11-10 22:20:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:20:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:20:36,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-10 22:20:36,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6791277258566978 [2024-11-10 22:20:36,915 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 219 flow. Second operand 3 states and 218 transitions. [2024-11-10 22:20:36,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 285 flow [2024-11-10 22:20:36,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 285 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:20:36,924 INFO L231 Difference]: Finished difference. Result has 91 places, 91 transitions, 203 flow [2024-11-10 22:20:36,926 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} [2024-11-10 22:20:36,930 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2024-11-10 22:20:36,930 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 91 transitions, 203 flow [2024-11-10 22:20:36,931 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) [2024-11-10 22:20:36,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:36,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:36,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:20:37,135 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 [2024-11-10 22:20:37,137 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)] === [2024-11-10 22:20:37,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:37,139 INFO L85 PathProgramCache]: Analyzing trace with hash -733339471, now seen corresponding path program 1 times [2024-11-10 22:20:37,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:37,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84737660] [2024-11-10 22:20:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:37,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:37,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:37,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84737660] [2024-11-10 22:20:37,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84737660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:37,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:37,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:37,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012359241] [2024-11-10 22:20:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:37,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:20:37,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:37,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:20:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:20:37,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-11-10 22:20:37,356 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) [2024-11-10 22:20:37,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:37,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-11-10 22:20:37,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:37,628 INFO L124 PetriNetUnfolderBase]: 121/475 cut-off events. [2024-11-10 22:20:37,629 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 22:20:37,632 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. [2024-11-10 22:20:37,636 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 40 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-11-10 22:20:37,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 291 flow [2024-11-10 22:20:37,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:20:37,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:20:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-11-10 22:20:37,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6137071651090342 [2024-11-10 22:20:37,639 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 203 flow. Second operand 3 states and 197 transitions. [2024-11-10 22:20:37,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 291 flow [2024-11-10 22:20:37,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:20:37,643 INFO L231 Difference]: Finished difference. Result has 93 places, 92 transitions, 217 flow [2024-11-10 22:20:37,643 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} [2024-11-10 22:20:37,644 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-10 22:20:37,645 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 92 transitions, 217 flow [2024-11-10 22:20:37,645 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) [2024-11-10 22:20:37,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:37,646 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:37,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:20:37,646 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)] === [2024-11-10 22:20:37,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1258674978, now seen corresponding path program 1 times [2024-11-10 22:20:37,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:37,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749735534] [2024-11-10 22:20:37,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:37,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:37,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:37,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749735534] [2024-11-10 22:20:37,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749735534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:37,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:37,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:37,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390737235] [2024-11-10 22:20:37,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:37,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:37,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:37,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:37,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:37,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-11-10 22:20:37,821 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) [2024-11-10 22:20:37,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:37,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-11-10 22:20:37,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:38,098 INFO L124 PetriNetUnfolderBase]: 121/471 cut-off events. [2024-11-10 22:20:38,099 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-10 22:20:38,100 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. [2024-11-10 22:20:38,102 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 41 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2024-11-10 22:20:38,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 93 transitions, 307 flow [2024-11-10 22:20:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:38,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:38,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2024-11-10 22:20:38,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5630841121495327 [2024-11-10 22:20:38,105 INFO L175 Difference]: Start difference. First operand has 93 places, 92 transitions, 217 flow. Second operand 4 states and 241 transitions. [2024-11-10 22:20:38,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 93 transitions, 307 flow [2024-11-10 22:20:38,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 93 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:20:38,109 INFO L231 Difference]: Finished difference. Result has 97 places, 93 transitions, 233 flow [2024-11-10 22:20:38,110 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} [2024-11-10 22:20:38,112 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-10 22:20:38,112 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 93 transitions, 233 flow [2024-11-10 22:20:38,113 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) [2024-11-10 22:20:38,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:38,113 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:38,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:20:38,113 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)] === [2024-11-10 22:20:38,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:38,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1777713953, now seen corresponding path program 1 times [2024-11-10 22:20:38,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:38,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924206880] [2024-11-10 22:20:38,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:38,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:38,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924206880] [2024-11-10 22:20:38,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924206880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:38,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815912666] [2024-11-10 22:20:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:38,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:38,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:38,301 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) [2024-11-10 22:20:38,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:20:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:38,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:20:38,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:38,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:38,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:38,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815912666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:38,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:38,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 22:20:38,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412186474] [2024-11-10 22:20:38,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:38,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:20:38,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:38,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:20:38,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:20:38,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-10 22:20:38,627 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) [2024-11-10 22:20:38,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:38,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-10 22:20:38,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:39,144 INFO L124 PetriNetUnfolderBase]: 121/491 cut-off events. [2024-11-10 22:20:39,145 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-11-10 22:20:39,146 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. [2024-11-10 22:20:39,148 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 44 selfloop transitions, 9 changer transitions 0/101 dead transitions. [2024-11-10 22:20:39,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 101 transitions, 369 flow [2024-11-10 22:20:39,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:20:39,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:20:39,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 487 transitions. [2024-11-10 22:20:39,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.505711318795431 [2024-11-10 22:20:39,152 INFO L175 Difference]: Start difference. First operand has 97 places, 93 transitions, 233 flow. Second operand 9 states and 487 transitions. [2024-11-10 22:20:39,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 101 transitions, 369 flow [2024-11-10 22:20:39,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:20:39,159 INFO L231 Difference]: Finished difference. Result has 107 places, 97 transitions, 283 flow [2024-11-10 22:20:39,159 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} [2024-11-10 22:20:39,161 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2024-11-10 22:20:39,161 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 283 flow [2024-11-10 22:20:39,162 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) [2024-11-10 22:20:39,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:39,162 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:39,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:20:39,366 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 [2024-11-10 22:20:39,367 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)] === [2024-11-10 22:20:39,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:39,367 INFO L85 PathProgramCache]: Analyzing trace with hash -725430162, now seen corresponding path program 1 times [2024-11-10 22:20:39,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:39,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930639793] [2024-11-10 22:20:39,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:39,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:39,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:39,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930639793] [2024-11-10 22:20:39,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930639793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:39,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192654750] [2024-11-10 22:20:39,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:39,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:39,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:39,563 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) [2024-11-10 22:20:39,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:20:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:39,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:20:39,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:39,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:39,815 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:20:39,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192654750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:39,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:20:39,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-10 22:20:39,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419289153] [2024-11-10 22:20:39,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:39,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:20:39,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:39,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:20:39,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:20:39,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2024-11-10 22:20:39,835 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) [2024-11-10 22:20:39,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:39,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2024-11-10 22:20:39,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:40,018 INFO L124 PetriNetUnfolderBase]: 121/487 cut-off events. [2024-11-10 22:20:40,018 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-10 22:20:40,019 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. [2024-11-10 22:20:40,021 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 36 selfloop transitions, 8 changer transitions 0/95 dead transitions. [2024-11-10 22:20:40,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 95 transitions, 357 flow [2024-11-10 22:20:40,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:40,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-10 22:20:40,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5607476635514018 [2024-11-10 22:20:40,023 INFO L175 Difference]: Start difference. First operand has 107 places, 97 transitions, 283 flow. Second operand 4 states and 240 transitions. [2024-11-10 22:20:40,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 95 transitions, 357 flow [2024-11-10 22:20:40,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 95 transitions, 349 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 22:20:40,028 INFO L231 Difference]: Finished difference. Result has 105 places, 95 transitions, 277 flow [2024-11-10 22:20:40,029 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} [2024-11-10 22:20:40,029 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 17 predicate places. [2024-11-10 22:20:40,030 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 95 transitions, 277 flow [2024-11-10 22:20:40,030 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) [2024-11-10 22:20:40,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:40,030 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-10 22:20:40,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:20:40,234 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 [2024-11-10 22:20:40,235 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)] === [2024-11-10 22:20:40,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:40,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1435405672, now seen corresponding path program 1 times [2024-11-10 22:20:40,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:40,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024937115] [2024-11-10 22:20:40,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:40,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 22:20:40,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:40,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024937115] [2024-11-10 22:20:40,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024937115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:40,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:40,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:40,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652975813] [2024-11-10 22:20:40,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:40,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:40,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:40,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:40,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:40,401 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2024-11-10 22:20:40,402 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) [2024-11-10 22:20:40,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:40,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2024-11-10 22:20:40,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:40,648 INFO L124 PetriNetUnfolderBase]: 121/485 cut-off events. [2024-11-10 22:20:40,649 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-11-10 22:20:40,650 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. [2024-11-10 22:20:40,652 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 36 selfloop transitions, 9 changer transitions 0/95 dead transitions. [2024-11-10 22:20:40,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 95 transitions, 365 flow [2024-11-10 22:20:40,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-10 22:20:40,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5607476635514018 [2024-11-10 22:20:40,654 INFO L175 Difference]: Start difference. First operand has 105 places, 95 transitions, 277 flow. Second operand 4 states and 240 transitions. [2024-11-10 22:20:40,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 95 transitions, 365 flow [2024-11-10 22:20:40,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 345 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:20:40,659 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 281 flow [2024-11-10 22:20:40,659 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} [2024-11-10 22:20:40,659 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 15 predicate places. [2024-11-10 22:20:40,660 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 281 flow [2024-11-10 22:20:40,660 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) [2024-11-10 22:20:40,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:40,660 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:40,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:20:40,661 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)] === [2024-11-10 22:20:40,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:40,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1513442305, now seen corresponding path program 2 times [2024-11-10 22:20:40,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:40,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623024473] [2024-11-10 22:20:40,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:40,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:40,871 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 22:20:40,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:40,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623024473] [2024-11-10 22:20:40,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623024473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:40,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:40,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:20:40,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275623572] [2024-11-10 22:20:40,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:40,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:40,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:40,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:40,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-11-10 22:20:40,888 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) [2024-11-10 22:20:40,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:40,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-11-10 22:20:40,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:41,109 INFO L124 PetriNetUnfolderBase]: 121/483 cut-off events. [2024-11-10 22:20:41,109 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-10 22:20:41,110 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. [2024-11-10 22:20:41,112 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 51 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2024-11-10 22:20:41,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 103 transitions, 451 flow [2024-11-10 22:20:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-11-10 22:20:41,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5700934579439252 [2024-11-10 22:20:41,114 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 281 flow. Second operand 4 states and 244 transitions. [2024-11-10 22:20:41,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 103 transitions, 451 flow [2024-11-10 22:20:41,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 427 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 22:20:41,118 INFO L231 Difference]: Finished difference. Result has 106 places, 96 transitions, 285 flow [2024-11-10 22:20:41,118 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} [2024-11-10 22:20:41,119 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2024-11-10 22:20:41,119 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 96 transitions, 285 flow [2024-11-10 22:20:41,119 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) [2024-11-10 22:20:41,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:41,120 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] [2024-11-10 22:20:41,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:20:41,120 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)] === [2024-11-10 22:20:41,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:41,121 INFO L85 PathProgramCache]: Analyzing trace with hash 328668533, now seen corresponding path program 1 times [2024-11-10 22:20:41,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:41,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667433555] [2024-11-10 22:20:41,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:41,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 22:20:41,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:41,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667433555] [2024-11-10 22:20:41,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667433555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:41,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347036264] [2024-11-10 22:20:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:41,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:41,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:41,334 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) [2024-11-10 22:20:41,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:20:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:41,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 22:20:41,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:41,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:41,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347036264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:41,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:41,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-11-10 22:20:41,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729076386] [2024-11-10 22:20:41,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:41,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 22:20:41,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:41,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 22:20:41,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-10 22:20:41,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 107 [2024-11-10 22:20:41,970 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) [2024-11-10 22:20:41,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:41,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 107 [2024-11-10 22:20:41,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:43,154 INFO L124 PetriNetUnfolderBase]: 126/603 cut-off events. [2024-11-10 22:20:43,154 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-10 22:20:43,156 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. [2024-11-10 22:20:43,159 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 83 selfloop transitions, 55 changer transitions 0/183 dead transitions. [2024-11-10 22:20:43,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 183 transitions, 1167 flow [2024-11-10 22:20:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-10 22:20:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-10 22:20:43,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 2131 transitions. [2024-11-10 22:20:43,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4526338147833475 [2024-11-10 22:20:43,169 INFO L175 Difference]: Start difference. First operand has 106 places, 96 transitions, 285 flow. Second operand 44 states and 2131 transitions. [2024-11-10 22:20:43,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 183 transitions, 1167 flow [2024-11-10 22:20:43,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 183 transitions, 1163 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:20:43,177 INFO L231 Difference]: Finished difference. Result has 164 places, 144 transitions, 851 flow [2024-11-10 22:20:43,177 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} [2024-11-10 22:20:43,179 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 76 predicate places. [2024-11-10 22:20:43,179 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 144 transitions, 851 flow [2024-11-10 22:20:43,182 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) [2024-11-10 22:20:43,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:43,182 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 9, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:43,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 22:20:43,386 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 [2024-11-10 22:20:43,387 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)] === [2024-11-10 22:20:43,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:43,387 INFO L85 PathProgramCache]: Analyzing trace with hash -990405572, now seen corresponding path program 1 times [2024-11-10 22:20:43,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:43,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936042004] [2024-11-10 22:20:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:43,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:20:44,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:44,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936042004] [2024-11-10 22:20:44,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936042004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:44,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723907454] [2024-11-10 22:20:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:44,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:44,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:44,179 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) [2024-11-10 22:20:44,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:20:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:44,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 22:20:44,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:44,698 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:20:44,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:44,977 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:20:44,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723907454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:44,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:44,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-10 22:20:44,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347059066] [2024-11-10 22:20:44,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:44,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-10 22:20:44,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:44,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-10 22:20:44,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 22:20:45,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-10 22:20:45,063 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) [2024-11-10 22:20:45,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:45,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-10 22:20:45,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:46,662 INFO L124 PetriNetUnfolderBase]: 122/779 cut-off events. [2024-11-10 22:20:46,663 INFO L125 PetriNetUnfolderBase]: For 5740/5740 co-relation queries the response was YES. [2024-11-10 22:20:46,666 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. [2024-11-10 22:20:46,669 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 113 selfloop transitions, 93 changer transitions 0/254 dead transitions. [2024-11-10 22:20:46,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 254 transitions, 2511 flow [2024-11-10 22:20:46,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-10 22:20:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-10 22:20:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1605 transitions. [2024-11-10 22:20:46,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4838709677419355 [2024-11-10 22:20:46,677 INFO L175 Difference]: Start difference. First operand has 164 places, 144 transitions, 851 flow. Second operand 31 states and 1605 transitions. [2024-11-10 22:20:46,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 254 transitions, 2511 flow [2024-11-10 22:20:46,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 254 transitions, 2283 flow, removed 100 selfloop flow, removed 6 redundant places. [2024-11-10 22:20:46,700 INFO L231 Difference]: Finished difference. Result has 197 places, 195 transitions, 1461 flow [2024-11-10 22:20:46,702 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} [2024-11-10 22:20:46,703 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 109 predicate places. [2024-11-10 22:20:46,704 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 195 transitions, 1461 flow [2024-11-10 22:20:46,705 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) [2024-11-10 22:20:46,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:46,705 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 17, 16, 16, 16, 16, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:46,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 22:20:46,905 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 [2024-11-10 22:20:46,906 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)] === [2024-11-10 22:20:46,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:46,907 INFO L85 PathProgramCache]: Analyzing trace with hash 327868348, now seen corresponding path program 2 times [2024-11-10 22:20:46,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:46,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000351723] [2024-11-10 22:20:46,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:46,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:20:49,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:49,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000351723] [2024-11-10 22:20:49,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000351723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:49,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877494543] [2024-11-10 22:20:49,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:20:49,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:49,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:49,033 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) [2024-11-10 22:20:49,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:20:49,633 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 22:20:49,633 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:20:49,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 22:20:49,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:20:49,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:20:50,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877494543] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:50,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:50,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-10 22:20:50,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472154585] [2024-11-10 22:20:50,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:50,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-10 22:20:50,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:50,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-10 22:20:50,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-10 22:20:50,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-10 22:20:50,755 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) [2024-11-10 22:20:50,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:50,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-10 22:20:50,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:53,607 INFO L124 PetriNetUnfolderBase]: 122/1109 cut-off events. [2024-11-10 22:20:53,607 INFO L125 PetriNetUnfolderBase]: For 19703/19703 co-relation queries the response was YES. [2024-11-10 22:20:53,610 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. [2024-11-10 22:20:53,613 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 203 selfloop transitions, 183 changer transitions 0/434 dead transitions. [2024-11-10 22:20:53,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 434 transitions, 5224 flow [2024-11-10 22:20:53,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-10 22:20:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-10 22:20:53,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 3127 transitions. [2024-11-10 22:20:53,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4790868699249272 [2024-11-10 22:20:53,622 INFO L175 Difference]: Start difference. First operand has 197 places, 195 transitions, 1461 flow. Second operand 61 states and 3127 transitions. [2024-11-10 22:20:53,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 434 transitions, 5224 flow [2024-11-10 22:20:53,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 434 transitions, 5120 flow, removed 16 selfloop flow, removed 12 redundant places. [2024-11-10 22:20:53,665 INFO L231 Difference]: Finished difference. Result has 261 places, 288 transitions, 2965 flow [2024-11-10 22:20:53,665 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} [2024-11-10 22:20:53,666 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 173 predicate places. [2024-11-10 22:20:53,666 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 288 transitions, 2965 flow [2024-11-10 22:20:53,669 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) [2024-11-10 22:20:53,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:53,670 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 32, 31, 31, 31, 31, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:53,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 22:20:53,870 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 [2024-11-10 22:20:53,871 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)] === [2024-11-10 22:20:53,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:53,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1506196404, now seen corresponding path program 3 times [2024-11-10 22:20:53,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:53,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723470312] [2024-11-10 22:20:53,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:53,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:21:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 22:21:49,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245513457] [2024-11-10 22:21:49,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 22:21:49,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:21:49,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:21:49,171 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) [2024-11-10 22:21:49,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 22:21:49,958 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 22:21:49,958 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:21:49,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 22:21:49,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:21:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2949 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked. [2024-11-10 22:21:50,245 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:21:50,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:21:50,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723470312] [2024-11-10 22:21:50,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 22:21:50,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245513457] [2024-11-10 22:21:50,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245513457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:21:50,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:21:50,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:21:50,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071418795] [2024-11-10 22:21:50,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:21:50,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:21:50,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:21:50,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:21:50,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:21:50,288 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 107 [2024-11-10 22:21:50,288 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) [2024-11-10 22:21:50,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:21:50,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 107 [2024-11-10 22:21:50,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:21:51,072 INFO L124 PetriNetUnfolderBase]: 122/1049 cut-off events. [2024-11-10 22:21:51,072 INFO L125 PetriNetUnfolderBase]: For 10271/10271 co-relation queries the response was YES. [2024-11-10 22:21:51,075 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. [2024-11-10 22:21:51,079 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 108 selfloop transitions, 137 changer transitions 0/290 dead transitions. [2024-11-10 22:21:51,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 290 transitions, 3547 flow [2024-11-10 22:21:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 22:21:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-10 22:21:51,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 548 transitions. [2024-11-10 22:21:51,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46559048428207306 [2024-11-10 22:21:51,081 INFO L175 Difference]: Start difference. First operand has 261 places, 288 transitions, 2965 flow. Second operand 11 states and 548 transitions. [2024-11-10 22:21:51,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 290 transitions, 3547 flow [2024-11-10 22:21:51,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 290 transitions, 3287 flow, removed 46 selfloop flow, removed 28 redundant places. [2024-11-10 22:21:51,138 INFO L231 Difference]: Finished difference. Result has 242 places, 288 transitions, 3062 flow [2024-11-10 22:21:51,138 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} [2024-11-10 22:21:51,141 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 154 predicate places. [2024-11-10 22:21:51,141 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 288 transitions, 3062 flow [2024-11-10 22:21:51,141 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) [2024-11-10 22:21:51,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:21:51,142 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 31, 31, 31, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:21:51,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 22:21:51,345 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 [2024-11-10 22:21:51,346 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)] === [2024-11-10 22:21:51,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:21:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash 552552442, now seen corresponding path program 1 times [2024-11-10 22:21:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:21:51,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841388240] [2024-11-10 22:21:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:21:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms