./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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/weaver/chl-node-subst.wvr.c -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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:03:14,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:03:14,954 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:03:14,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:03:14,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:03:14,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:03:14,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:03:14,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:03:14,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:03:14,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:03:14,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:03:14,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:03:14,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:03:14,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:03:14,991 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:03:14,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:03:14,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:03:14,992 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:03:14,993 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:03:14,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:03:14,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:03:14,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:03:14,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:03:14,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:03:14,995 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:03:14,995 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:03:14,996 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:03:14,996 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:03:14,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:03:14,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:03:14,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:03:14,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:03:14,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:03:14,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:03:14,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:03:14,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:03:14,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:03:14,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:03:14,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:03:15,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:03:15,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:03:15,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:03:15,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:03:15,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:03:15,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2024-11-19 14:03:15,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:03:15,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:03:15,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:03:15,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:03:15,261 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:03:15,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-11-19 14:03:16,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:03:16,971 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:03:16,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-11-19 14:03:16,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4926419a/6e92fd699eba4b05bc03ffb6ba0c9b5e/FLAG669224e92 [2024-11-19 14:03:17,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4926419a/6e92fd699eba4b05bc03ffb6ba0c9b5e [2024-11-19 14:03:17,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:03:17,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:03:17,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:03:17,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:03:17,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:03:17,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b642713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17, skipping insertion in model container [2024-11-19 14:03:17,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:03:17,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:03:17,646 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:03:17,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:03:17,698 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:03:17,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17 WrapperNode [2024-11-19 14:03:17,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:03:17,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:03:17,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:03:17,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:03:17,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,763 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 492 [2024-11-19 14:03:17,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:03:17,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:03:17,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:03:17,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:03:17,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,787 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,807 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 15, 9]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-11-19 14:03:17,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:03:17,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:03:17,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:03:17,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:03:17,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (1/1) ... [2024-11-19 14:03:17,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:03:17,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:17,882 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) [2024-11-19 14:03:17,914 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 [2024-11-19 14:03:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:03:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:03:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:03:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 14:03:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:03:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:03:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 14:03:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:03:17,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:03:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:03:17,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:03:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:03:17,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:03:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:03:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:03:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 14:03:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:03:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:03:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:03:17,995 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:03:18,127 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:03:18,129 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:03:18,841 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:03:18,842 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:03:19,300 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:03:19,301 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-19 14:03:19,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:19 BoogieIcfgContainer [2024-11-19 14:03:19,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:03:19,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:03:19,304 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:03:19,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:03:19,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:03:17" (1/3) ... [2024-11-19 14:03:19,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492fefba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:19, skipping insertion in model container [2024-11-19 14:03:19,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:17" (2/3) ... [2024-11-19 14:03:19,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492fefba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:19, skipping insertion in model container [2024-11-19 14:03:19,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:19" (3/3) ... [2024-11-19 14:03:19,311 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2024-11-19 14:03:19,327 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:03:19,328 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-19 14:03:19,328 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:03:19,438 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:03:19,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 301 flow [2024-11-19 14:03:19,521 INFO L124 PetriNetUnfolderBase]: 15/137 cut-off events. [2024-11-19 14:03:19,521 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:03:19,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 15/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 404 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2024-11-19 14:03:19,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 301 flow [2024-11-19 14:03:19,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 285 flow [2024-11-19 14:03:19,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:03:19,552 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;@3247f23f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:03:19,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-19 14:03:19,556 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:03:19,556 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-19 14:03:19,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:03:19,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:19,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-19 14:03:19,558 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:19,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:19,562 INFO L85 PathProgramCache]: Analyzing trace with hash 46888, now seen corresponding path program 1 times [2024-11-19 14:03:19,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:19,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276751179] [2024-11-19 14:03:19,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:19,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:19,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:19,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276751179] [2024-11-19 14:03:19,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276751179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:19,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:19,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:19,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714190516] [2024-11-19 14:03:19,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:19,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:19,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:19,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:19,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:19,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-19 14:03:19,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:19,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:19,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:20,998 INFO L124 PetriNetUnfolderBase]: 4133/8026 cut-off events. [2024-11-19 14:03:20,998 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-11-19 14:03:21,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 8026 events. 4133/8026 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65987 event pairs, 2732 based on Foata normal form. 2/6384 useless extension candidates. Maximal degree in co-relation 13014. Up to 5498 conditions per place. [2024-11-19 14:03:21,069 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 61 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2024-11-19 14:03:21,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 405 flow [2024-11-19 14:03:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:21,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:21,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-19 14:03:21,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-19 14:03:21,087 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 285 flow. Second operand 3 states and 286 transitions. [2024-11-19 14:03:21,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 405 flow [2024-11-19 14:03:21,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:03:21,097 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 274 flow [2024-11-19 14:03:21,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2024-11-19 14:03:21,102 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2024-11-19 14:03:21,103 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 274 flow [2024-11-19 14:03:21,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-19 14:03:21,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:21,104 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:03:21,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:03:21,104 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:21,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:21,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1455072, now seen corresponding path program 1 times [2024-11-19 14:03:21,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:21,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550377163] [2024-11-19 14:03:21,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:21,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:21,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:21,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550377163] [2024-11-19 14:03:21,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550377163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:21,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:21,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:21,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392606816] [2024-11-19 14:03:21,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:21,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:21,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:21,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:21,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:21,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:21,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-19 14:03:21,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:21,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:21,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:22,161 INFO L124 PetriNetUnfolderBase]: 4133/8024 cut-off events. [2024-11-19 14:03:22,162 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-19 14:03:22,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13658 conditions, 8024 events. 4133/8024 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66088 event pairs, 2732 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13652. Up to 5496 conditions per place. [2024-11-19 14:03:22,238 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 59 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-19 14:03:22,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 390 flow [2024-11-19 14:03:22,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-19 14:03:22,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-19 14:03:22,242 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 274 flow. Second operand 3 states and 284 transitions. [2024-11-19 14:03:22,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 390 flow [2024-11-19 14:03:22,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:22,248 INFO L231 Difference]: Finished difference. Result has 124 places, 131 transitions, 271 flow [2024-11-19 14:03:22,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=124, PETRI_TRANSITIONS=131} [2024-11-19 14:03:22,250 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2024-11-19 14:03:22,250 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 131 transitions, 271 flow [2024-11-19 14:03:22,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-19 14:03:22,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:22,251 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 14:03:22,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:03:22,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:22,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:22,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373587, now seen corresponding path program 1 times [2024-11-19 14:03:22,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:22,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988878882] [2024-11-19 14:03:22,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:22,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:22,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:22,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988878882] [2024-11-19 14:03:22,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988878882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:22,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:22,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:22,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273385706] [2024-11-19 14:03:22,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:22,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:22,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:22,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:22,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:22,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:22,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 131 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-19 14:03:22,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:22,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:22,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:23,320 INFO L124 PetriNetUnfolderBase]: 4136/8036 cut-off events. [2024-11-19 14:03:23,320 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-19 14:03:23,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13686 conditions, 8036 events. 4136/8036 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66179 event pairs, 2732 based on Foata normal form. 3/6394 useless extension candidates. Maximal degree in co-relation 13679. Up to 5506 conditions per place. [2024-11-19 14:03:23,370 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 63 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2024-11-19 14:03:23,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 140 transitions, 439 flow [2024-11-19 14:03:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-19 14:03:23,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-19 14:03:23,373 INFO L175 Difference]: Start difference. First operand has 124 places, 131 transitions, 271 flow. Second operand 4 states and 369 transitions. [2024-11-19 14:03:23,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 140 transitions, 439 flow [2024-11-19 14:03:23,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:23,376 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 357 flow [2024-11-19 14:03:23,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2024-11-19 14:03:23,377 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2024-11-19 14:03:23,378 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 357 flow [2024-11-19 14:03:23,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-19 14:03:23,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:23,378 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 14:03:23,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:03:23,379 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:23,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373678, now seen corresponding path program 1 times [2024-11-19 14:03:23,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:23,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111733054] [2024-11-19 14:03:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:23,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:23,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111733054] [2024-11-19 14:03:23,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111733054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:23,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:23,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:23,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643730492] [2024-11-19 14:03:23,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:23,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:23,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:23,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:23,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:23,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-19 14:03:23,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:23,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:23,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:24,315 INFO L124 PetriNetUnfolderBase]: 4136/8034 cut-off events. [2024-11-19 14:03:24,315 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-19 14:03:24,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13718 conditions, 8034 events. 4136/8034 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66112 event pairs, 2732 based on Foata normal form. 2/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5507 conditions per place. [2024-11-19 14:03:24,379 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-11-19 14:03:24,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 495 flow [2024-11-19 14:03:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:24,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:24,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-19 14:03:24,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-19 14:03:24,462 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 357 flow. Second operand 3 states and 286 transitions. [2024-11-19 14:03:24,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 495 flow [2024-11-19 14:03:24,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:24,465 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 346 flow [2024-11-19 14:03:24,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2024-11-19 14:03:24,466 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-19 14:03:24,467 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 346 flow [2024-11-19 14:03:24,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-19 14:03:24,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:24,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:03:24,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:03:24,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:24,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:24,468 INFO L85 PathProgramCache]: Analyzing trace with hash 399912571, now seen corresponding path program 1 times [2024-11-19 14:03:24,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:24,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600535455] [2024-11-19 14:03:24,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:24,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:24,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:24,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:24,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600535455] [2024-11-19 14:03:24,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600535455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:24,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:24,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:24,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238944367] [2024-11-19 14:03:24,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:24,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:24,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:24,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:24,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:24,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:24,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-19 14:03:24,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:24,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:24,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:25,300 INFO L124 PetriNetUnfolderBase]: 4136/8032 cut-off events. [2024-11-19 14:03:25,301 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-19 14:03:25,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8032 events. 4136/8032 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66163 event pairs, 2732 based on Foata normal form. 1/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5505 conditions per place. [2024-11-19 14:03:25,349 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2024-11-19 14:03:25,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 480 flow [2024-11-19 14:03:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:25,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:25,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-19 14:03:25,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-19 14:03:25,351 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 346 flow. Second operand 3 states and 284 transitions. [2024-11-19 14:03:25,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 480 flow [2024-11-19 14:03:25,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:25,356 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 343 flow [2024-11-19 14:03:25,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-11-19 14:03:25,357 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-11-19 14:03:25,359 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 343 flow [2024-11-19 14:03:25,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-19 14:03:25,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:25,359 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:25,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:03:25,360 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:25,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:25,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2061233645, now seen corresponding path program 1 times [2024-11-19 14:03:25,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:25,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477200799] [2024-11-19 14:03:25,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:25,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:25,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:25,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:25,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477200799] [2024-11-19 14:03:25,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477200799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:25,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899580769] [2024-11-19 14:03:25,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:25,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:25,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:25,463 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) [2024-11-19 14:03:25,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:03:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:25,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:25,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:25,618 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:03:25,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899580769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:25,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:03:25,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:03:25,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629792436] [2024-11-19 14:03:25,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:25,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:03:25,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:25,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:03:25,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:03:25,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:25,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-11-19 14:03:25,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:25,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:25,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:26,498 INFO L124 PetriNetUnfolderBase]: 4140/8022 cut-off events. [2024-11-19 14:03:26,499 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-19 14:03:26,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13706 conditions, 8022 events. 4140/8022 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65806 event pairs, 2736 based on Foata normal form. 3/6399 useless extension candidates. Maximal degree in co-relation 13695. Up to 5497 conditions per place. [2024-11-19 14:03:26,544 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 51 selfloop transitions, 21 changer transitions 0/133 dead transitions. [2024-11-19 14:03:26,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 133 transitions, 475 flow [2024-11-19 14:03:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-19 14:03:26,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-19 14:03:26,547 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 343 flow. Second operand 6 states and 507 transitions. [2024-11-19 14:03:26,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 133 transitions, 475 flow [2024-11-19 14:03:26,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 133 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:26,549 INFO L231 Difference]: Finished difference. Result has 127 places, 133 transitions, 372 flow [2024-11-19 14:03:26,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=127, PETRI_TRANSITIONS=133} [2024-11-19 14:03:26,551 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-19 14:03:26,551 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 133 transitions, 372 flow [2024-11-19 14:03:26,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-11-19 14:03:26,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:26,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:26,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 14:03:26,752 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,SelfDestructingSolverStorable5 [2024-11-19 14:03:26,753 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:26,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:26,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2063938383, now seen corresponding path program 1 times [2024-11-19 14:03:26,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:26,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630546872] [2024-11-19 14:03:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:26,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:26,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:26,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630546872] [2024-11-19 14:03:26,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630546872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:26,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:26,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:26,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140428637] [2024-11-19 14:03:26,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:26,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:26,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:26,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:26,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:26,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:26,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 133 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-19 14:03:26,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:26,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:26,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:27,430 INFO L124 PetriNetUnfolderBase]: 4140/8020 cut-off events. [2024-11-19 14:03:27,430 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-19 14:03:27,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13724 conditions, 8020 events. 4140/8020 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65808 event pairs, 2736 based on Foata normal form. 2/6400 useless extension candidates. Maximal degree in co-relation 13713. Up to 5513 conditions per place. [2024-11-19 14:03:27,481 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-19 14:03:27,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 510 flow [2024-11-19 14:03:27,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:27,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-19 14:03:27,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-19 14:03:27,483 INFO L175 Difference]: Start difference. First operand has 127 places, 133 transitions, 372 flow. Second operand 3 states and 286 transitions. [2024-11-19 14:03:27,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 510 flow [2024-11-19 14:03:27,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 131 transitions, 465 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:27,488 INFO L231 Difference]: Finished difference. Result has 123 places, 131 transitions, 325 flow [2024-11-19 14:03:27,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=123, PETRI_TRANSITIONS=131} [2024-11-19 14:03:27,490 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -7 predicate places. [2024-11-19 14:03:27,490 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 131 transitions, 325 flow [2024-11-19 14:03:27,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-19 14:03:27,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:27,491 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-19 14:03:27,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:03:27,491 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:27,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:27,492 INFO L85 PathProgramCache]: Analyzing trace with hash -526264928, now seen corresponding path program 1 times [2024-11-19 14:03:27,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:27,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657615211] [2024-11-19 14:03:27,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:27,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:27,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:27,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657615211] [2024-11-19 14:03:27,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657615211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:27,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658860093] [2024-11-19 14:03:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:27,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:27,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:27,593 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) [2024-11-19 14:03:27,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:03:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:27,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:27,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:27,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:27,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:27,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658860093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:27,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:27,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:03:27,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562457088] [2024-11-19 14:03:27,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:27,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:03:27,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:27,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:03:27,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:03:27,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:27,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 131 transitions, 325 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-11-19 14:03:27,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:27,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:27,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:28,836 INFO L124 PetriNetUnfolderBase]: 4149/8056 cut-off events. [2024-11-19 14:03:28,836 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-11-19 14:03:28,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13791 conditions, 8056 events. 4149/8056 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65984 event pairs, 2736 based on Foata normal form. 9/6435 useless extension candidates. Maximal degree in co-relation 13780. Up to 5518 conditions per place. [2024-11-19 14:03:28,906 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 60 selfloop transitions, 39 changer transitions 0/158 dead transitions. [2024-11-19 14:03:28,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 158 transitions, 640 flow [2024-11-19 14:03:28,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:03:28,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:03:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-19 14:03:28,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-19 14:03:28,910 INFO L175 Difference]: Start difference. First operand has 123 places, 131 transitions, 325 flow. Second operand 10 states and 828 transitions. [2024-11-19 14:03:28,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 158 transitions, 640 flow [2024-11-19 14:03:28,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 158 transitions, 639 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:28,914 INFO L231 Difference]: Finished difference. Result has 134 places, 158 transitions, 573 flow [2024-11-19 14:03:28,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=573, PETRI_PLACES=134, PETRI_TRANSITIONS=158} [2024-11-19 14:03:28,915 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-19 14:03:28,915 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 158 transitions, 573 flow [2024-11-19 14:03:28,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-11-19 14:03:28,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:28,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:28,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 14:03:29,117 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,SelfDestructingSolverStorable7 [2024-11-19 14:03:29,118 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:29,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:29,119 INFO L85 PathProgramCache]: Analyzing trace with hash -442418035, now seen corresponding path program 1 times [2024-11-19 14:03:29,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:29,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163621479] [2024-11-19 14:03:29,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:29,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:29,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:29,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163621479] [2024-11-19 14:03:29,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163621479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:29,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:29,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:29,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834973100] [2024-11-19 14:03:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:29,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:29,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:29,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:29,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:29,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:29,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 158 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-19 14:03:29,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:29,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:29,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:29,908 INFO L124 PetriNetUnfolderBase]: 4149/8054 cut-off events. [2024-11-19 14:03:29,909 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-19 14:03:29,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13855 conditions, 8054 events. 4149/8054 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65915 event pairs, 2736 based on Foata normal form. 1/6434 useless extension candidates. Maximal degree in co-relation 13841. Up to 5538 conditions per place. [2024-11-19 14:03:29,964 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 95 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2024-11-19 14:03:29,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 156 transitions, 761 flow [2024-11-19 14:03:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:29,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:29,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-19 14:03:29,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-19 14:03:29,966 INFO L175 Difference]: Start difference. First operand has 134 places, 158 transitions, 573 flow. Second operand 3 states and 284 transitions. [2024-11-19 14:03:29,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 156 transitions, 761 flow [2024-11-19 14:03:29,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 156 transitions, 728 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:29,970 INFO L231 Difference]: Finished difference. Result has 132 places, 156 transitions, 538 flow [2024-11-19 14:03:29,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=132, PETRI_TRANSITIONS=156} [2024-11-19 14:03:29,971 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-11-19 14:03:29,971 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 156 transitions, 538 flow [2024-11-19 14:03:29,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-19 14:03:29,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:29,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:29,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 14:03:29,972 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:29,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:29,973 INFO L85 PathProgramCache]: Analyzing trace with hash 577326466, now seen corresponding path program 1 times [2024-11-19 14:03:29,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:29,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73740469] [2024-11-19 14:03:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:29,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:30,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:30,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73740469] [2024-11-19 14:03:30,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73740469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:30,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:30,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:30,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205900660] [2024-11-19 14:03:30,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:30,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:30,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:30,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:30,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:30,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:30,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 156 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-11-19 14:03:30,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:30,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:30,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:30,862 INFO L124 PetriNetUnfolderBase]: 4152/8066 cut-off events. [2024-11-19 14:03:30,862 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-19 14:03:30,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13869 conditions, 8066 events. 4152/8066 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66051 event pairs, 2736 based on Foata normal form. 3/6445 useless extension candidates. Maximal degree in co-relation 13853. Up to 5548 conditions per place. [2024-11-19 14:03:30,900 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 99 selfloop transitions, 12 changer transitions 0/165 dead transitions. [2024-11-19 14:03:30,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 165 transitions, 778 flow [2024-11-19 14:03:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:30,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-19 14:03:30,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-19 14:03:30,903 INFO L175 Difference]: Start difference. First operand has 132 places, 156 transitions, 538 flow. Second operand 4 states and 369 transitions. [2024-11-19 14:03:30,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 165 transitions, 778 flow [2024-11-19 14:03:30,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 777 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:30,906 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 624 flow [2024-11-19 14:03:30,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=624, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2024-11-19 14:03:30,907 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2024-11-19 14:03:30,908 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 624 flow [2024-11-19 14:03:30,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-11-19 14:03:30,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:30,908 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:30,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 14:03:30,909 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:30,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:30,909 INFO L85 PathProgramCache]: Analyzing trace with hash 2085231517, now seen corresponding path program 1 times [2024-11-19 14:03:30,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:30,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769073887] [2024-11-19 14:03:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:30,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:03:31,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:31,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769073887] [2024-11-19 14:03:31,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769073887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:31,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:31,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576244393] [2024-11-19 14:03:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:31,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:31,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:31,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:31,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-11-19 14:03:31,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:31,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:31,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:31,533 INFO L124 PetriNetUnfolderBase]: 4151/8065 cut-off events. [2024-11-19 14:03:31,533 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-19 14:03:31,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 8065 events. 4151/8065 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66014 event pairs, 2736 based on Foata normal form. 1/6448 useless extension candidates. Maximal degree in co-relation 13880. Up to 5544 conditions per place. [2024-11-19 14:03:31,575 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 101 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2024-11-19 14:03:31,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 164 transitions, 828 flow [2024-11-19 14:03:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:31,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:31,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:31,577 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 624 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:31,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 164 transitions, 828 flow [2024-11-19 14:03:31,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 164 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:31,584 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 617 flow [2024-11-19 14:03:31,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=617, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2024-11-19 14:03:31,584 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2024-11-19 14:03:31,585 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 617 flow [2024-11-19 14:03:31,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-11-19 14:03:31,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:31,586 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2024-11-19 14:03:31,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 14:03:31,586 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:31,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:31,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1543471110, now seen corresponding path program 2 times [2024-11-19 14:03:31,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:31,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689680353] [2024-11-19 14:03:31,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:31,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:31,602 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:31,603 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:31,666 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:31,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:31,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689680353] [2024-11-19 14:03:31,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689680353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:31,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368373305] [2024-11-19 14:03:31,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:31,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:31,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:31,669 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) [2024-11-19 14:03:31,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:03:31,757 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:31,757 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:31,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:03:31,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:31,787 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:31,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:31,831 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:31,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368373305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:31,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:31,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-19 14:03:31,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608685599] [2024-11-19 14:03:31,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:31,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:31,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:31,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:31,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 140 [2024-11-19 14:03:31,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 164 transitions, 617 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2024-11-19 14:03:31,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:31,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 140 [2024-11-19 14:03:31,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:32,485 INFO L124 PetriNetUnfolderBase]: 4151/8062 cut-off events. [2024-11-19 14:03:32,485 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2024-11-19 14:03:32,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13880 conditions, 8062 events. 4151/8062 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66026 event pairs, 2736 based on Foata normal form. 3/6447 useless extension candidates. Maximal degree in co-relation 13861. Up to 5513 conditions per place. [2024-11-19 14:03:32,552 INFO L140 encePairwiseOnDemand]: 124/140 looper letters, 56 selfloop transitions, 48 changer transitions 0/161 dead transitions. [2024-11-19 14:03:32,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 161 transitions, 795 flow [2024-11-19 14:03:32,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:03:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:03:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2024-11-19 14:03:32,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757142857142857 [2024-11-19 14:03:32,554 INFO L175 Difference]: Start difference. First operand has 138 places, 164 transitions, 617 flow. Second operand 5 states and 403 transitions. [2024-11-19 14:03:32,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 161 transitions, 795 flow [2024-11-19 14:03:32,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 161 transitions, 761 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 14:03:32,558 INFO L231 Difference]: Finished difference. Result has 133 places, 161 transitions, 649 flow [2024-11-19 14:03:32,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=649, PETRI_PLACES=133, PETRI_TRANSITIONS=161} [2024-11-19 14:03:32,559 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-19 14:03:32,559 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 161 transitions, 649 flow [2024-11-19 14:03:32,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2024-11-19 14:03:32,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:32,559 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:32,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 14:03:32,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:32,760 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:32,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:32,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2147071415, now seen corresponding path program 1 times [2024-11-19 14:03:32,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:32,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568690350] [2024-11-19 14:03:32,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:32,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:32,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:32,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:32,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568690350] [2024-11-19 14:03:32,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568690350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:32,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:32,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:32,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365850007] [2024-11-19 14:03:32,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:32,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:32,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:32,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:32,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:32,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:32,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 161 transitions, 649 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-11-19 14:03:32,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:32,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:32,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:33,474 INFO L124 PetriNetUnfolderBase]: 4150/8061 cut-off events. [2024-11-19 14:03:33,474 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-19 14:03:33,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13903 conditions, 8061 events. 4150/8061 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65933 event pairs, 2736 based on Foata normal form. 0/6433 useless extension candidates. Maximal degree in co-relation 13888. Up to 5543 conditions per place. [2024-11-19 14:03:33,512 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 100 selfloop transitions, 3 changer transitions 0/160 dead transitions. [2024-11-19 14:03:33,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 160 transitions, 849 flow [2024-11-19 14:03:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:33,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:33,514 INFO L175 Difference]: Start difference. First operand has 133 places, 161 transitions, 649 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:33,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 160 transitions, 849 flow [2024-11-19 14:03:33,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 160 transitions, 755 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:33,517 INFO L231 Difference]: Finished difference. Result has 132 places, 160 transitions, 555 flow [2024-11-19 14:03:33,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=555, PETRI_PLACES=132, PETRI_TRANSITIONS=160} [2024-11-19 14:03:33,518 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-11-19 14:03:33,518 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 160 transitions, 555 flow [2024-11-19 14:03:33,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-11-19 14:03:33,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:33,518 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:33,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 14:03:33,519 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:33,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:33,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1056073208, now seen corresponding path program 1 times [2024-11-19 14:03:33,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:33,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641339264] [2024-11-19 14:03:33,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:33,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:33,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:33,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:33,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641339264] [2024-11-19 14:03:33,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641339264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:33,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:33,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:33,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237494137] [2024-11-19 14:03:33,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:33,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:33,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:33,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:33,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:33,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:33,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 160 transitions, 555 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-11-19 14:03:33,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:33,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:33,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:34,133 INFO L124 PetriNetUnfolderBase]: 4149/8060 cut-off events. [2024-11-19 14:03:34,133 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-11-19 14:03:34,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13856 conditions, 8060 events. 4149/8060 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65887 event pairs, 2736 based on Foata normal form. 0/6433 useless extension candidates. Maximal degree in co-relation 13841. Up to 5542 conditions per place. [2024-11-19 14:03:34,174 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 99 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2024-11-19 14:03:34,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 159 transitions, 755 flow [2024-11-19 14:03:34,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:34,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:34,176 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:34,176 INFO L175 Difference]: Start difference. First operand has 132 places, 160 transitions, 555 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:34,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 159 transitions, 755 flow [2024-11-19 14:03:34,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 159 transitions, 751 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:34,180 INFO L231 Difference]: Finished difference. Result has 133 places, 159 transitions, 553 flow [2024-11-19 14:03:34,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=553, PETRI_PLACES=133, PETRI_TRANSITIONS=159} [2024-11-19 14:03:34,180 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-19 14:03:34,181 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 159 transitions, 553 flow [2024-11-19 14:03:34,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-11-19 14:03:34,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:34,181 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:34,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 14:03:34,181 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:34,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:34,182 INFO L85 PathProgramCache]: Analyzing trace with hash -852712849, now seen corresponding path program 1 times [2024-11-19 14:03:34,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:34,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721268478] [2024-11-19 14:03:34,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:34,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:34,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:34,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721268478] [2024-11-19 14:03:34,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721268478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:34,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742761958] [2024-11-19 14:03:34,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:34,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:34,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:34,281 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) [2024-11-19 14:03:34,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:03:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:34,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:34,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:34,439 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:03:34,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742761958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:34,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:03:34,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:03:34,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407975272] [2024-11-19 14:03:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:34,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:03:34,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:34,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:03:34,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:03:34,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:34,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 159 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-19 14:03:34,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:34,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:34,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:35,149 INFO L124 PetriNetUnfolderBase]: 4149/8057 cut-off events. [2024-11-19 14:03:35,150 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-19 14:03:35,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13854 conditions, 8057 events. 4149/8057 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65807 event pairs, 2736 based on Foata normal form. 3/6430 useless extension candidates. Maximal degree in co-relation 13839. Up to 5530 conditions per place. [2024-11-19 14:03:35,177 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 84 selfloop transitions, 21 changer transitions 0/156 dead transitions. [2024-11-19 14:03:35,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 156 transitions, 751 flow [2024-11-19 14:03:35,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:35,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-19 14:03:35,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-19 14:03:35,179 INFO L175 Difference]: Start difference. First operand has 133 places, 159 transitions, 553 flow. Second operand 6 states and 507 transitions. [2024-11-19 14:03:35,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 156 transitions, 751 flow [2024-11-19 14:03:35,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 156 transitions, 747 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:35,182 INFO L231 Difference]: Finished difference. Result has 133 places, 156 transitions, 579 flow [2024-11-19 14:03:35,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=579, PETRI_PLACES=133, PETRI_TRANSITIONS=156} [2024-11-19 14:03:35,183 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-19 14:03:35,183 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 156 transitions, 579 flow [2024-11-19 14:03:35,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-19 14:03:35,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:35,184 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:35,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 14:03:35,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 14:03:35,385 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:35,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:35,385 INFO L85 PathProgramCache]: Analyzing trace with hash -664292993, now seen corresponding path program 1 times [2024-11-19 14:03:35,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:35,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580681966] [2024-11-19 14:03:35,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:35,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:35,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:35,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580681966] [2024-11-19 14:03:35,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580681966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:35,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333543770] [2024-11-19 14:03:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:35,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:35,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:35,536 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) [2024-11-19 14:03:35,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 14:03:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:35,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:35,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:35,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:35,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333543770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:35,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:35,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:03:35,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010975581] [2024-11-19 14:03:35,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:35,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:03:35,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:35,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:03:35,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:03:35,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:35,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 156 transitions, 579 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-11-19 14:03:35,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:35,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:35,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:36,301 INFO L124 PetriNetUnfolderBase]: 4158/8093 cut-off events. [2024-11-19 14:03:36,301 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-19 14:03:36,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13990 conditions, 8093 events. 4158/8093 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66179 event pairs, 2736 based on Foata normal form. 9/6466 useless extension candidates. Maximal degree in co-relation 13976. Up to 5551 conditions per place. [2024-11-19 14:03:36,342 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 93 selfloop transitions, 39 changer transitions 0/183 dead transitions. [2024-11-19 14:03:36,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 183 transitions, 1005 flow [2024-11-19 14:03:36,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:03:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:03:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-19 14:03:36,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-19 14:03:36,345 INFO L175 Difference]: Start difference. First operand has 133 places, 156 transitions, 579 flow. Second operand 10 states and 828 transitions. [2024-11-19 14:03:36,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 183 transitions, 1005 flow [2024-11-19 14:03:36,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 183 transitions, 915 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:36,350 INFO L231 Difference]: Finished difference. Result has 141 places, 183 transitions, 783 flow [2024-11-19 14:03:36,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=783, PETRI_PLACES=141, PETRI_TRANSITIONS=183} [2024-11-19 14:03:36,351 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 11 predicate places. [2024-11-19 14:03:36,351 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 183 transitions, 783 flow [2024-11-19 14:03:36,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-11-19 14:03:36,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:36,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:36,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 14:03:36,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 14:03:36,558 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:36,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:36,558 INFO L85 PathProgramCache]: Analyzing trace with hash -90376987, now seen corresponding path program 1 times [2024-11-19 14:03:36,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:36,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888188080] [2024-11-19 14:03:36,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:36,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:36,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:36,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:36,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888188080] [2024-11-19 14:03:36,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888188080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:36,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:36,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:36,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526921210] [2024-11-19 14:03:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:36,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:36,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:36,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:36,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 183 transitions, 783 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-11-19 14:03:36,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:36,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:36,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:37,760 INFO L124 PetriNetUnfolderBase]: 8087/14033 cut-off events. [2024-11-19 14:03:37,760 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2024-11-19 14:03:37,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25329 conditions, 14033 events. 8087/14033 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 896. Compared 112459 event pairs, 2643 based on Foata normal form. 364/11800 useless extension candidates. Maximal degree in co-relation 25313. Up to 5113 conditions per place. [2024-11-19 14:03:37,817 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 179 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2024-11-19 14:03:37,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 232 transitions, 1255 flow [2024-11-19 14:03:37,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2024-11-19 14:03:37,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-19 14:03:37,819 INFO L175 Difference]: Start difference. First operand has 141 places, 183 transitions, 783 flow. Second operand 4 states and 406 transitions. [2024-11-19 14:03:37,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 232 transitions, 1255 flow [2024-11-19 14:03:37,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 232 transitions, 1222 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:37,824 INFO L231 Difference]: Finished difference. Result has 144 places, 185 transitions, 784 flow [2024-11-19 14:03:37,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=784, PETRI_PLACES=144, PETRI_TRANSITIONS=185} [2024-11-19 14:03:37,825 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 14 predicate places. [2024-11-19 14:03:37,825 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 185 transitions, 784 flow [2024-11-19 14:03:37,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-11-19 14:03:37,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:37,826 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:37,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 14:03:37,826 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:37,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1493282289, now seen corresponding path program 1 times [2024-11-19 14:03:37,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:37,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396403292] [2024-11-19 14:03:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:37,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:37,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:37,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:37,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396403292] [2024-11-19 14:03:37,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396403292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:37,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:37,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:37,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452784000] [2024-11-19 14:03:37,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:37,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:37,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:37,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:37,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:37,943 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:37,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 185 transitions, 784 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-11-19 14:03:37,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:37,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:37,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:38,602 INFO L124 PetriNetUnfolderBase]: 5003/10046 cut-off events. [2024-11-19 14:03:38,603 INFO L125 PetriNetUnfolderBase]: For 1864/2136 co-relation queries the response was YES. [2024-11-19 14:03:38,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18452 conditions, 10046 events. 5003/10046 cut-off events. For 1864/2136 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87749 event pairs, 3370 based on Foata normal form. 138/8303 useless extension candidates. Maximal degree in co-relation 18433. Up to 6706 conditions per place. [2024-11-19 14:03:38,662 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 127 selfloop transitions, 3 changer transitions 0/184 dead transitions. [2024-11-19 14:03:38,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 184 transitions, 1040 flow [2024-11-19 14:03:38,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:38,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:38,664 INFO L175 Difference]: Start difference. First operand has 144 places, 185 transitions, 784 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:38,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 184 transitions, 1040 flow [2024-11-19 14:03:38,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 184 transitions, 1040 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:03:38,676 INFO L231 Difference]: Finished difference. Result has 147 places, 184 transitions, 786 flow [2024-11-19 14:03:38,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=786, PETRI_PLACES=147, PETRI_TRANSITIONS=184} [2024-11-19 14:03:38,677 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 17 predicate places. [2024-11-19 14:03:38,677 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 184 transitions, 786 flow [2024-11-19 14:03:38,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-11-19 14:03:38,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:38,677 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:38,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 14:03:38,678 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:38,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:38,678 INFO L85 PathProgramCache]: Analyzing trace with hash -174152482, now seen corresponding path program 2 times [2024-11-19 14:03:38,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:38,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289148759] [2024-11-19 14:03:38,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:38,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:38,700 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:38,700 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:38,761 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 14:03:38,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:38,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289148759] [2024-11-19 14:03:38,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289148759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:38,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026760768] [2024-11-19 14:03:38,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:38,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:38,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:38,764 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) [2024-11-19 14:03:38,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 14:03:38,876 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:38,876 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:38,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:03:38,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:38,923 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 14:03:38,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 14:03:38,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026760768] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:38,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:38,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 4 [2024-11-19 14:03:38,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142104595] [2024-11-19 14:03:38,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:38,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:38,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:38,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:38,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:39,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 140 [2024-11-19 14:03:39,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 184 transitions, 786 flow. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2024-11-19 14:03:39,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:39,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 140 [2024-11-19 14:03:39,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:39,799 INFO L124 PetriNetUnfolderBase]: 5003/10043 cut-off events. [2024-11-19 14:03:39,799 INFO L125 PetriNetUnfolderBase]: For 1880/2152 co-relation queries the response was YES. [2024-11-19 14:03:39,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18441 conditions, 10043 events. 5003/10043 cut-off events. For 1880/2152 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87807 event pairs, 3370 based on Foata normal form. 140/8302 useless extension candidates. Maximal degree in co-relation 18420. Up to 6675 conditions per place. [2024-11-19 14:03:39,848 INFO L140 encePairwiseOnDemand]: 124/140 looper letters, 82 selfloop transitions, 48 changer transitions 0/181 dead transitions. [2024-11-19 14:03:39,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 181 transitions, 1016 flow [2024-11-19 14:03:39,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:03:39,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:03:39,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2024-11-19 14:03:39,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757142857142857 [2024-11-19 14:03:39,850 INFO L175 Difference]: Start difference. First operand has 147 places, 184 transitions, 786 flow. Second operand 5 states and 403 transitions. [2024-11-19 14:03:39,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 181 transitions, 1016 flow [2024-11-19 14:03:39,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 181 transitions, 982 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 14:03:39,864 INFO L231 Difference]: Finished difference. Result has 142 places, 181 transitions, 818 flow [2024-11-19 14:03:39,864 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=818, PETRI_PLACES=142, PETRI_TRANSITIONS=181} [2024-11-19 14:03:39,864 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-11-19 14:03:39,865 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 181 transitions, 818 flow [2024-11-19 14:03:39,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2024-11-19 14:03:39,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:39,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:39,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 14:03:40,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:40,066 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:40,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash 251158034, now seen corresponding path program 1 times [2024-11-19 14:03:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:40,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935094999] [2024-11-19 14:03:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:40,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:40,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:40,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:40,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935094999] [2024-11-19 14:03:40,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935094999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:40,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:40,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:40,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290567245] [2024-11-19 14:03:40,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:40,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:40,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:40,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:40,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:40,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:40,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 181 transitions, 818 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-19 14:03:40,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:40,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:40,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:41,174 INFO L124 PetriNetUnfolderBase]: 5002/10042 cut-off events. [2024-11-19 14:03:41,175 INFO L125 PetriNetUnfolderBase]: For 1888/2160 co-relation queries the response was YES. [2024-11-19 14:03:41,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18464 conditions, 10042 events. 5002/10042 cut-off events. For 1888/2160 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87659 event pairs, 3370 based on Foata normal form. 137/8288 useless extension candidates. Maximal degree in co-relation 18447. Up to 6705 conditions per place. [2024-11-19 14:03:41,237 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 126 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2024-11-19 14:03:41,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 180 transitions, 1070 flow [2024-11-19 14:03:41,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:41,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:41,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:41,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:41,239 INFO L175 Difference]: Start difference. First operand has 142 places, 181 transitions, 818 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:41,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 180 transitions, 1070 flow [2024-11-19 14:03:41,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 180 transitions, 976 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:41,247 INFO L231 Difference]: Finished difference. Result has 141 places, 180 transitions, 724 flow [2024-11-19 14:03:41,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=724, PETRI_PLACES=141, PETRI_TRANSITIONS=180} [2024-11-19 14:03:41,248 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 11 predicate places. [2024-11-19 14:03:41,248 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 180 transitions, 724 flow [2024-11-19 14:03:41,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-19 14:03:41,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:41,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:41,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 14:03:41,249 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:41,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:41,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1363619158, now seen corresponding path program 1 times [2024-11-19 14:03:41,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:41,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291987548] [2024-11-19 14:03:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:41,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:41,391 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 14:03:41,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:41,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291987548] [2024-11-19 14:03:41,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291987548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:41,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:41,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:41,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123127961] [2024-11-19 14:03:41,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:41,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:41,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:41,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:41,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:41,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:41,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 180 transitions, 724 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-11-19 14:03:41,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:41,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:41,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:42,322 INFO L124 PetriNetUnfolderBase]: 5001/10041 cut-off events. [2024-11-19 14:03:42,323 INFO L125 PetriNetUnfolderBase]: For 1843/2115 co-relation queries the response was YES. [2024-11-19 14:03:42,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18417 conditions, 10041 events. 5001/10041 cut-off events. For 1843/2115 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87678 event pairs, 3370 based on Foata normal form. 137/8288 useless extension candidates. Maximal degree in co-relation 18400. Up to 6704 conditions per place. [2024-11-19 14:03:42,390 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 125 selfloop transitions, 3 changer transitions 0/179 dead transitions. [2024-11-19 14:03:42,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 179 transitions, 976 flow [2024-11-19 14:03:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:42,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:42,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:42,392 INFO L175 Difference]: Start difference. First operand has 141 places, 180 transitions, 724 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:42,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 179 transitions, 976 flow [2024-11-19 14:03:42,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 179 transitions, 972 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:42,405 INFO L231 Difference]: Finished difference. Result has 142 places, 179 transitions, 722 flow [2024-11-19 14:03:42,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=722, PETRI_PLACES=142, PETRI_TRANSITIONS=179} [2024-11-19 14:03:42,406 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-11-19 14:03:42,406 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 179 transitions, 722 flow [2024-11-19 14:03:42,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-11-19 14:03:42,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:42,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:42,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 14:03:42,407 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:42,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:42,408 INFO L85 PathProgramCache]: Analyzing trace with hash -409634365, now seen corresponding path program 1 times [2024-11-19 14:03:42,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:42,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360154240] [2024-11-19 14:03:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:42,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:43,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:43,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360154240] [2024-11-19 14:03:43,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360154240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617077262] [2024-11-19 14:03:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:43,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:43,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:43,397 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) [2024-11-19 14:03:43,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 14:03:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:43,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-19 14:03:43,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:43,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-19 14:03:43,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 14:03:43,751 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 14:03:43,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-19 14:03:43,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-19 14:03:43,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 14:03:43,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:43,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:44,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:03:44,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2024-11-19 14:03:44,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:03:44,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2024-11-19 14:03:44,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2024-11-19 14:03:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:44,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617077262] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:44,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:44,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-19 14:03:44,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195447010] [2024-11-19 14:03:44,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:44,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 14:03:44,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:44,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 14:03:44,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=278, Unknown=5, NotChecked=0, Total=342 [2024-11-19 14:03:44,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-19 14:03:44,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 179 transitions, 722 flow. Second operand has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 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) [2024-11-19 14:03:44,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:44,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-19 14:03:44,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:45,767 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_3~0 4) c_~get_5~0.offset))) (and (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) c_~get_5~0.base) .cse0) 9223372039002259456)) (forall ((|v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174| Int)) (or (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174| v_ArrVal_365) c_~get_5~0.base) .cse0) 9223372039002259456)) (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174|) 0)))) (<= 0 c_~id_3~0))) is different from false [2024-11-19 14:03:50,497 INFO L124 PetriNetUnfolderBase]: 38905/59285 cut-off events. [2024-11-19 14:03:50,497 INFO L125 PetriNetUnfolderBase]: For 5837/6059 co-relation queries the response was YES. [2024-11-19 14:03:50,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120842 conditions, 59285 events. 38905/59285 cut-off events. For 5837/6059 co-relation queries the response was YES. Maximal size of possible extension queue 2541. Compared 467935 event pairs, 8741 based on Foata normal form. 222/52102 useless extension candidates. Maximal degree in co-relation 120825. Up to 12393 conditions per place. [2024-11-19 14:03:50,991 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 419 selfloop transitions, 71 changer transitions 0/527 dead transitions. [2024-11-19 14:03:50,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 527 transitions, 2909 flow [2024-11-19 14:03:50,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 14:03:50,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-19 14:03:50,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1533 transitions. [2024-11-19 14:03:50,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49772727272727274 [2024-11-19 14:03:50,995 INFO L175 Difference]: Start difference. First operand has 142 places, 179 transitions, 722 flow. Second operand 22 states and 1533 transitions. [2024-11-19 14:03:50,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 527 transitions, 2909 flow [2024-11-19 14:03:51,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 527 transitions, 2901 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:51,138 INFO L231 Difference]: Finished difference. Result has 166 places, 218 transitions, 1151 flow [2024-11-19 14:03:51,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1151, PETRI_PLACES=166, PETRI_TRANSITIONS=218} [2024-11-19 14:03:51,138 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 36 predicate places. [2024-11-19 14:03:51,138 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 218 transitions, 1151 flow [2024-11-19 14:03:51,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 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) [2024-11-19 14:03:51,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:51,139 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:51,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 14:03:51,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:51,340 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:51,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:51,340 INFO L85 PathProgramCache]: Analyzing trace with hash 186206391, now seen corresponding path program 1 times [2024-11-19 14:03:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67999784] [2024-11-19 14:03:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:51,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:52,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:52,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67999784] [2024-11-19 14:03:52,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67999784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:52,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727091078] [2024-11-19 14:03:52,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:52,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:52,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:52,152 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:03:52,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 14:03:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:52,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 14:03:52,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:52,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-19 14:03:52,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-19 14:03:52,538 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 14:03:52,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-19 14:03:52,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-19 14:03:52,864 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-19 14:03:52,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-11-19 14:03:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:52,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:53,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:03:53,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2024-11-19 14:03:53,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:03:53,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2024-11-19 14:03:53,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2024-11-19 14:03:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:53,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727091078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:53,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:53,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-19 14:03:53,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469562090] [2024-11-19 14:03:53,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:53,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 14:03:53,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:53,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 14:03:53,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=424, Unknown=5, NotChecked=0, Total=506 [2024-11-19 14:03:53,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-19 14:03:53,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 218 transitions, 1151 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-19 14:03:53,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:53,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-19 14:03:53,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:59,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-19 14:04:05,851 INFO L124 PetriNetUnfolderBase]: 37647/57807 cut-off events. [2024-11-19 14:04:05,851 INFO L125 PetriNetUnfolderBase]: For 13949/14171 co-relation queries the response was YES. [2024-11-19 14:04:06,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122169 conditions, 57807 events. 37647/57807 cut-off events. For 13949/14171 co-relation queries the response was YES. Maximal size of possible extension queue 2500. Compared 460571 event pairs, 10033 based on Foata normal form. 586/51182 useless extension candidates. Maximal degree in co-relation 122147. Up to 13978 conditions per place. [2024-11-19 14:04:06,341 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 406 selfloop transitions, 72 changer transitions 0/515 dead transitions. [2024-11-19 14:04:06,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 515 transitions, 3083 flow [2024-11-19 14:04:06,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 14:04:06,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-19 14:04:06,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1516 transitions. [2024-11-19 14:04:06,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4922077922077922 [2024-11-19 14:04:06,344 INFO L175 Difference]: Start difference. First operand has 166 places, 218 transitions, 1151 flow. Second operand 22 states and 1516 transitions. [2024-11-19 14:04:06,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 515 transitions, 3083 flow [2024-11-19 14:04:06,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 515 transitions, 3076 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:06,621 INFO L231 Difference]: Finished difference. Result has 186 places, 221 transitions, 1333 flow [2024-11-19 14:04:06,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1131, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1333, PETRI_PLACES=186, PETRI_TRANSITIONS=221} [2024-11-19 14:04:06,622 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 56 predicate places. [2024-11-19 14:04:06,622 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 221 transitions, 1333 flow [2024-11-19 14:04:06,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-19 14:04:06,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:06,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:06,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 14:04:06,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-19 14:04:06,824 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:04:06,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash 623257027, now seen corresponding path program 1 times [2024-11-19 14:04:06,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:06,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098441932] [2024-11-19 14:04:06,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:06,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 14:04:06,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:06,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098441932] [2024-11-19 14:04:06,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098441932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:06,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:06,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:06,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043761624] [2024-11-19 14:04:06,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:06,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:06,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:06,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:06,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:06,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:04:06,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 221 transitions, 1333 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-19 14:04:06,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:06,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:04:06,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:12,417 INFO L124 PetriNetUnfolderBase]: 32330/58001 cut-off events. [2024-11-19 14:04:12,418 INFO L125 PetriNetUnfolderBase]: For 36716/37612 co-relation queries the response was YES. [2024-11-19 14:04:12,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123239 conditions, 58001 events. 32330/58001 cut-off events. For 36716/37612 co-relation queries the response was YES. Maximal size of possible extension queue 2965. Compared 575969 event pairs, 10437 based on Foata normal form. 2203/51083 useless extension candidates. Maximal degree in co-relation 123215. Up to 20699 conditions per place. [2024-11-19 14:04:13,163 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 239 selfloop transitions, 5 changer transitions 0/294 dead transitions. [2024-11-19 14:04:13,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 294 transitions, 2177 flow [2024-11-19 14:04:13,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:13,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2024-11-19 14:04:13,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7214285714285714 [2024-11-19 14:04:13,165 INFO L175 Difference]: Start difference. First operand has 186 places, 221 transitions, 1333 flow. Second operand 4 states and 404 transitions. [2024-11-19 14:04:13,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 294 transitions, 2177 flow [2024-11-19 14:04:13,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 294 transitions, 2073 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-19 14:04:13,274 INFO L231 Difference]: Finished difference. Result has 176 places, 223 transitions, 1283 flow [2024-11-19 14:04:13,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1247, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1283, PETRI_PLACES=176, PETRI_TRANSITIONS=223} [2024-11-19 14:04:13,275 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 46 predicate places. [2024-11-19 14:04:13,275 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 223 transitions, 1283 flow [2024-11-19 14:04:13,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-19 14:04:13,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:13,276 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:13,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 14:04:13,276 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:04:13,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:13,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1477432422, now seen corresponding path program 1 times [2024-11-19 14:04:13,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:13,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018832844] [2024-11-19 14:04:13,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:13,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 14:04:13,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:13,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018832844] [2024-11-19 14:04:13,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018832844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:13,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:13,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:13,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888695460] [2024-11-19 14:04:13,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:13,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:13,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:13,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:13,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:13,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:04:13,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 223 transitions, 1283 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2024-11-19 14:04:13,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:13,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:04:13,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:18,491 INFO L124 PetriNetUnfolderBase]: 28340/52418 cut-off events. [2024-11-19 14:04:18,491 INFO L125 PetriNetUnfolderBase]: For 37422/38908 co-relation queries the response was YES. [2024-11-19 14:04:18,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115955 conditions, 52418 events. 28340/52418 cut-off events. For 37422/38908 co-relation queries the response was YES. Maximal size of possible extension queue 2645. Compared 528135 event pairs, 10603 based on Foata normal form. 1446/47401 useless extension candidates. Maximal degree in co-relation 115931. Up to 20033 conditions per place. [2024-11-19 14:04:18,967 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 214 selfloop transitions, 11 changer transitions 0/271 dead transitions. [2024-11-19 14:04:18,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 271 transitions, 1853 flow [2024-11-19 14:04:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:18,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:18,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 403 transitions. [2024-11-19 14:04:18,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7196428571428571 [2024-11-19 14:04:18,968 INFO L175 Difference]: Start difference. First operand has 176 places, 223 transitions, 1283 flow. Second operand 4 states and 403 transitions. [2024-11-19 14:04:18,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 271 transitions, 1853 flow [2024-11-19 14:04:19,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 271 transitions, 1846 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:19,232 INFO L231 Difference]: Finished difference. Result has 178 places, 220 transitions, 1274 flow [2024-11-19 14:04:19,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1274, PETRI_PLACES=178, PETRI_TRANSITIONS=220} [2024-11-19 14:04:19,233 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 48 predicate places. [2024-11-19 14:04:19,233 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 220 transitions, 1274 flow [2024-11-19 14:04:19,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2024-11-19 14:04:19,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:19,233 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:19,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 14:04:19,233 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:04:19,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:19,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1477431397, now seen corresponding path program 1 times [2024-11-19 14:04:19,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:19,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410989848] [2024-11-19 14:04:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:19,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:04:20,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:20,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410989848] [2024-11-19 14:04:20,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410989848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:20,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105011357] [2024-11-19 14:04:20,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:20,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:20,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:20,208 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:20,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 14:04:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:20,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-19 14:04:20,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:20,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-19 14:04:20,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-19 14:04:20,643 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-19 14:04:20,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-19 14:04:20,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-19 14:04:20,794 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 14:04:20,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-19 14:04:20,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-19 14:04:21,142 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-19 14:04:21,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-11-19 14:04:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:04:21,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:21,252 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_519 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_519) c_~get_2~0.base) (+ (* c_~id_0~0 4) c_~get_2~0.offset))))) is different from false [2024-11-19 14:04:25,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:04:25,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2024-11-19 14:04:25,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:04:25,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2024-11-19 14:04:25,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2024-11-19 14:04:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 1 not checked. [2024-11-19 14:04:25,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105011357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:25,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:25,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-19 14:04:25,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158512535] [2024-11-19 14:04:25,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:25,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 14:04:25,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:25,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 14:04:25,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=589, Unknown=2, NotChecked=50, Total=756 [2024-11-19 14:04:25,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 140 [2024-11-19 14:04:25,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 220 transitions, 1274 flow. Second operand has 28 states, 28 states have (on average 55.67857142857143) internal successors, (1559), 28 states have internal predecessors, (1559), 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) [2024-11-19 14:04:25,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:25,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 140 [2024-11-19 14:04:25,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:32,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 14:04:35,360 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_0~0 4) c_~get_2~0.offset))) (and (forall ((|v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_182| Int) (v_ArrVal_519 (Array Int Int)) (v_ArrVal_518 (Array Int Int))) (or (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_518) |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_182| v_ArrVal_519) c_~get_2~0.base) .cse0))) (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_182|) 0)))) (<= 0 c_~id_0~0) (forall ((|v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_182| Int)) (or (forall ((v_ArrVal_519 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int#1| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_182| v_ArrVal_519) c_~get_2~0.base) .cse0)))) (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_182|) 0)))) (forall ((v_ArrVal_519 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_519) c_~get_2~0.base) .cse0)))))) is different from false