./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/reorder_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:03:55,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:03:55,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:03:55,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:03:55,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:03:55,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:03:55,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:03:55,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:03:55,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:03:55,643 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:03:55,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:03:55,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:03:55,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:03:55,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:03:55,650 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:03:55,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:03:55,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:03:55,651 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:03:55,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:03:55,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:03:55,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:03:55,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:03:55,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:03:55,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:03:55,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:03:55,657 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:03:55,657 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:03:55,657 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:03:55,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:03:55,658 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:03:55,658 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:03:55,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:03:55,659 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:03:55,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:03:55,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:03:55,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:03:55,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:03:55,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:03:55,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:03:55,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:03:55,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:03:55,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:03:55,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:03:55,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:03:55,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd [2024-11-10 22:03:55,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:03:55,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:03:55,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:03:55,961 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:03:55,961 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:03:55,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/reorder_5.i [2024-11-10 22:03:57,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:03:57,854 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:03:57,855 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i [2024-11-10 22:03:57,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcce2bb37/21016455137b4599b39fb73c13238690/FLAGc5dc30229 [2024-11-10 22:03:57,890 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcce2bb37/21016455137b4599b39fb73c13238690 [2024-11-10 22:03:57,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:03:57,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:03:57,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:03:57,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:03:57,899 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:03:57,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:03:57" (1/1) ... [2024-11-10 22:03:57,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf525a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:57, skipping insertion in model container [2024-11-10 22:03:57,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:03:57" (1/1) ... [2024-11-10 22:03:57,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:03:58,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:03:58,592 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:03:58,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:03:58,771 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:03:58,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58 WrapperNode [2024-11-10 22:03:58,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:03:58,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:03:58,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:03:58,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:03:58,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,833 INFO L138 Inliner]: procedures = 371, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 141 [2024-11-10 22:03:58,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:03:58,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:03:58,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:03:58,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:03:58,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,867 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-10 22:03:58,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,875 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:03:58,884 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:03:58,887 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:03:58,887 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:03:58,888 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (1/1) ... [2024-11-10 22:03:58,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:03:58,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:03:58,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 22:03:58,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 22:03:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 22:03:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 22:03:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 22:03:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 22:03:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:03:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:03:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:03:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-10 22:03:58,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-10 22:03:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:03:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:03:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:03:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:03:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-10 22:03:58,959 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-10 22:03:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:03:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:03:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:03:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:03:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:03:58,962 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:03:59,104 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:03:59,107 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:03:59,385 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1252: havoc main_~#setPool~0#1.base, main_~#setPool~0#1.offset; [2024-11-10 22:03:59,386 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1252-1: SUMMARY for call ULTIMATE.dealloc(main_~#setPool~0#1.base, main_~#setPool~0#1.offset); srcloc: null [2024-11-10 22:03:59,386 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1253: havoc main_~#checkPool~0#1.base, main_~#checkPool~0#1.offset; [2024-11-10 22:03:59,386 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1253-1: SUMMARY for call ULTIMATE.dealloc(main_~#checkPool~0#1.base, main_~#checkPool~0#1.offset); srcloc: null [2024-11-10 22:03:59,388 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:03:59,388 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:03:59,563 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:03:59,564 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:03:59,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:03:59 BoogieIcfgContainer [2024-11-10 22:03:59,565 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:03:59,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:03:59,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:03:59,572 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:03:59,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:03:57" (1/3) ... [2024-11-10 22:03:59,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba9c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:03:59, skipping insertion in model container [2024-11-10 22:03:59,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:58" (2/3) ... [2024-11-10 22:03:59,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba9c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:03:59, skipping insertion in model container [2024-11-10 22:03:59,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:03:59" (3/3) ... [2024-11-10 22:03:59,576 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2024-11-10 22:03:59,594 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:03:59,594 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-10 22:03:59,594 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:03:59,644 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 22:03:59,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 57 transitions, 134 flow [2024-11-10 22:03:59,745 INFO L124 PetriNetUnfolderBase]: 22/142 cut-off events. [2024-11-10 22:03:59,745 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 22:03:59,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 142 events. 22/142 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 503 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 71. Up to 8 conditions per place. [2024-11-10 22:03:59,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 57 transitions, 134 flow [2024-11-10 22:03:59,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 54 transitions, 128 flow [2024-11-10 22:03:59,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:03:59,774 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;@5ef5f914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:03:59,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-10 22:03:59,780 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:03:59,780 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-10 22:03:59,780 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:03:59,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:03:59,781 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:03:59,782 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:03:59,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:03:59,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1393069814, now seen corresponding path program 1 times [2024-11-10 22:03:59,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:03:59,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36001056] [2024-11-10 22:03:59,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:03:59,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:03:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:00,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:00,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36001056] [2024-11-10 22:04:00,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36001056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:00,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:00,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:04:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998903713] [2024-11-10 22:04:00,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:00,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:00,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:00,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:00,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:00,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-11-10 22:04:00,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 54 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:00,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:00,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-11-10 22:04:00,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:00,503 INFO L124 PetriNetUnfolderBase]: 291/807 cut-off events. [2024-11-10 22:04:00,503 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-10 22:04:00,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1422 conditions, 807 events. 291/807 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4598 event pairs, 189 based on Foata normal form. 68/824 useless extension candidates. Maximal degree in co-relation 1029. Up to 392 conditions per place. [2024-11-10 22:04:00,514 INFO L140 encePairwiseOnDemand]: 43/57 looper letters, 41 selfloop transitions, 9 changer transitions 2/73 dead transitions. [2024-11-10 22:04:00,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 73 transitions, 282 flow [2024-11-10 22:04:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-10 22:04:00,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2024-11-10 22:04:00,532 INFO L175 Difference]: Start difference. First operand has 52 places, 54 transitions, 128 flow. Second operand 4 states and 148 transitions. [2024-11-10 22:04:00,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 73 transitions, 282 flow [2024-11-10 22:04:00,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 73 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:04:00,544 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 156 flow [2024-11-10 22:04:00,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2024-11-10 22:04:00,551 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-11-10 22:04:00,551 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 156 flow [2024-11-10 22:04:00,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:00,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:00,553 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:00,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:04:00,554 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:00,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:00,555 INFO L85 PathProgramCache]: Analyzing trace with hash 322791707, now seen corresponding path program 1 times [2024-11-10 22:04:00,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:00,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019908741] [2024-11-10 22:04:00,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:00,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:00,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:00,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:00,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019908741] [2024-11-10 22:04:00,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019908741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:00,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:00,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:04:00,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065901956] [2024-11-10 22:04:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:00,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:00,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:00,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:00,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:00,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-11-10 22:04:00,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:00,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:00,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-11-10 22:04:00,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:00,885 INFO L124 PetriNetUnfolderBase]: 289/784 cut-off events. [2024-11-10 22:04:00,886 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-10 22:04:00,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1543 conditions, 784 events. 289/784 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4391 event pairs, 131 based on Foata normal form. 40/786 useless extension candidates. Maximal degree in co-relation 1117. Up to 352 conditions per place. [2024-11-10 22:04:00,892 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 44 selfloop transitions, 9 changer transitions 0/72 dead transitions. [2024-11-10 22:04:00,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 72 transitions, 314 flow [2024-11-10 22:04:00,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2024-11-10 22:04:00,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6271929824561403 [2024-11-10 22:04:00,895 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 156 flow. Second operand 4 states and 143 transitions. [2024-11-10 22:04:00,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 72 transitions, 314 flow [2024-11-10 22:04:00,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 72 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:04:00,901 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 168 flow [2024-11-10 22:04:00,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-11-10 22:04:00,903 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-11-10 22:04:00,903 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 168 flow [2024-11-10 22:04:00,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:00,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:00,905 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:00,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:04:00,906 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:00,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:00,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1847043590, now seen corresponding path program 1 times [2024-11-10 22:04:00,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:00,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800527900] [2024-11-10 22:04:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:00,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:04:00,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:04:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:04:01,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:04:01,005 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:04:01,006 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-10 22:04:01,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-10 22:04:01,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-10 22:04:01,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-10 22:04:01,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-10 22:04:01,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-10 22:04:01,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-10 22:04:01,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-10 22:04:01,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-10 22:04:01,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-11-10 22:04:01,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:04:01,014 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-10 22:04:01,019 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:04:01,020 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 22:04:01,045 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-10 22:04:01,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 71 transitions, 186 flow [2024-11-10 22:04:01,088 INFO L124 PetriNetUnfolderBase]: 101/519 cut-off events. [2024-11-10 22:04:01,088 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-10 22:04:01,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 519 events. 101/519 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2773 event pairs, 2 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 309. Up to 32 conditions per place. [2024-11-10 22:04:01,090 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 71 transitions, 186 flow [2024-11-10 22:04:01,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 68 transitions, 180 flow [2024-11-10 22:04:01,093 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:04:01,094 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;@5ef5f914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:04:01,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-10 22:04:01,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:04:01,098 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2024-11-10 22:04:01,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:04:01,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:01,099 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:04:01,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:01,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:01,099 INFO L85 PathProgramCache]: Analyzing trace with hash -860631330, now seen corresponding path program 1 times [2024-11-10 22:04:01,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:01,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57890731] [2024-11-10 22:04:01,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:01,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:01,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:01,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57890731] [2024-11-10 22:04:01,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57890731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:01,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:01,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:04:01,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675981497] [2024-11-10 22:04:01,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:01,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:01,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:01,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:01,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:01,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-10 22:04:01,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 68 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:01,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:01,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-10 22:04:01,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:04,197 INFO L124 PetriNetUnfolderBase]: 16821/29765 cut-off events. [2024-11-10 22:04:04,199 INFO L125 PetriNetUnfolderBase]: For 2548/2548 co-relation queries the response was YES. [2024-11-10 22:04:04,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55606 conditions, 29765 events. 16821/29765 cut-off events. For 2548/2548 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 250104 event pairs, 7893 based on Foata normal form. 1276/29308 useless extension candidates. Maximal degree in co-relation 31591. Up to 12614 conditions per place. [2024-11-10 22:04:04,399 INFO L140 encePairwiseOnDemand]: 57/71 looper letters, 71 selfloop transitions, 9 changer transitions 0/103 dead transitions. [2024-11-10 22:04:04,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 434 flow [2024-11-10 22:04:04,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-11-10 22:04:04,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.647887323943662 [2024-11-10 22:04:04,402 INFO L175 Difference]: Start difference. First operand has 66 places, 68 transitions, 180 flow. Second operand 4 states and 184 transitions. [2024-11-10 22:04:04,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 434 flow [2024-11-10 22:04:04,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 103 transitions, 434 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:04:04,420 INFO L231 Difference]: Finished difference. Result has 72 places, 73 transitions, 246 flow [2024-11-10 22:04:04,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2024-11-10 22:04:04,422 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2024-11-10 22:04:04,423 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 246 flow [2024-11-10 22:04:04,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:04,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:04,424 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:04,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:04:04,424 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:04,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash -988174167, now seen corresponding path program 1 times [2024-11-10 22:04:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:04,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183471672] [2024-11-10 22:04:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:04,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:04,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:04,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:04,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183471672] [2024-11-10 22:04:04,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183471672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:04,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:04,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:04:04,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062410603] [2024-11-10 22:04:04,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:04,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:04,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:04,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:04,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:04,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-10 22:04:04,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 246 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:04,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:04,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-10 22:04:04,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:07,353 INFO L124 PetriNetUnfolderBase]: 18645/31832 cut-off events. [2024-11-10 22:04:07,353 INFO L125 PetriNetUnfolderBase]: For 8468/8480 co-relation queries the response was YES. [2024-11-10 22:04:07,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64461 conditions, 31832 events. 18645/31832 cut-off events. For 8468/8480 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 259489 event pairs, 7723 based on Foata normal form. 168/30507 useless extension candidates. Maximal degree in co-relation 36695. Up to 14005 conditions per place. [2024-11-10 22:04:07,578 INFO L140 encePairwiseOnDemand]: 60/71 looper letters, 77 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2024-11-10 22:04:07,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 109 transitions, 514 flow [2024-11-10 22:04:07,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:07,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-11-10 22:04:07,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.647887323943662 [2024-11-10 22:04:07,581 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 246 flow. Second operand 4 states and 184 transitions. [2024-11-10 22:04:07,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 109 transitions, 514 flow [2024-11-10 22:04:07,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 109 transitions, 514 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:04:07,589 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 282 flow [2024-11-10 22:04:07,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2024-11-10 22:04:07,592 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 11 predicate places. [2024-11-10 22:04:07,594 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 282 flow [2024-11-10 22:04:07,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:07,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:07,595 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:07,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:04:07,596 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:07,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:07,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1491641558, now seen corresponding path program 1 times [2024-11-10 22:04:07,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:07,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794709470] [2024-11-10 22:04:07,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:07,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:07,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:07,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794709470] [2024-11-10 22:04:07,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794709470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:04:07,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793659814] [2024-11-10 22:04:07,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:07,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:04:07,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:04:07,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:04:07,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:04:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:07,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:04:07,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:04:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:07,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:04:07,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793659814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:07,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:04:07,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:04:07,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110622750] [2024-11-10 22:04:07,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:07,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:04:07,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:07,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:04:07,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:04:07,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-10 22:04:07,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:07,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:07,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-10 22:04:07,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:10,157 INFO L124 PetriNetUnfolderBase]: 16797/29800 cut-off events. [2024-11-10 22:04:10,158 INFO L125 PetriNetUnfolderBase]: For 16963/16963 co-relation queries the response was YES. [2024-11-10 22:04:10,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63198 conditions, 29800 events. 16797/29800 cut-off events. For 16963/16963 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 250892 event pairs, 5341 based on Foata normal form. 16/28396 useless extension candidates. Maximal degree in co-relation 35839. Up to 12614 conditions per place. [2024-11-10 22:04:10,342 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 80 selfloop transitions, 11 changer transitions 0/114 dead transitions. [2024-11-10 22:04:10,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 114 transitions, 566 flow [2024-11-10 22:04:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:04:10,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:04:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 236 transitions. [2024-11-10 22:04:10,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5539906103286385 [2024-11-10 22:04:10,344 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 282 flow. Second operand 6 states and 236 transitions. [2024-11-10 22:04:10,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 114 transitions, 566 flow [2024-11-10 22:04:10,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 114 transitions, 558 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:04:10,355 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 292 flow [2024-11-10 22:04:10,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=292, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2024-11-10 22:04:10,356 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 14 predicate places. [2024-11-10 22:04:10,356 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 292 flow [2024-11-10 22:04:10,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:10,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:10,356 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-10 22:04:10,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:04:10,558 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 [2024-11-10 22:04:10,558 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:10,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:10,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1003752288, now seen corresponding path program 1 times [2024-11-10 22:04:10,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:10,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125547104] [2024-11-10 22:04:10,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:10,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:10,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:10,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125547104] [2024-11-10 22:04:10,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125547104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:04:10,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537312525] [2024-11-10 22:04:10,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:10,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:04:10,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:04:10,669 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:04:10,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:04:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:10,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:04:10,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:04:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:10,792 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:04:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:10,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537312525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:04:10,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:04:10,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-10 22:04:10,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983033703] [2024-11-10 22:04:10,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:04:10,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:04:10,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:10,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:04:10,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:04:10,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-10 22:04:10,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 292 flow. Second operand has 12 states, 12 states have (on average 25.916666666666668) internal successors, (311), 12 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:10,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:10,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-10 22:04:10,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:13,289 INFO L124 PetriNetUnfolderBase]: 16773/29787 cut-off events. [2024-11-10 22:04:13,289 INFO L125 PetriNetUnfolderBase]: For 20298/20298 co-relation queries the response was YES. [2024-11-10 22:04:13,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63975 conditions, 29787 events. 16773/29787 cut-off events. For 20298/20298 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 250998 event pairs, 6081 based on Foata normal form. 16/28403 useless extension candidates. Maximal degree in co-relation 36277. Up to 12614 conditions per place. [2024-11-10 22:04:13,441 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 86 selfloop transitions, 12 changer transitions 0/121 dead transitions. [2024-11-10 22:04:13,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 121 transitions, 614 flow [2024-11-10 22:04:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:04:13,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:04:13,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 267 transitions. [2024-11-10 22:04:13,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5372233400402414 [2024-11-10 22:04:13,443 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 292 flow. Second operand 7 states and 267 transitions. [2024-11-10 22:04:13,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 121 transitions, 614 flow [2024-11-10 22:04:13,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 121 transitions, 588 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-10 22:04:13,456 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 296 flow [2024-11-10 22:04:13,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=296, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2024-11-10 22:04:13,458 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2024-11-10 22:04:13,458 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 296 flow [2024-11-10 22:04:13,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 25.916666666666668) internal successors, (311), 12 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:13,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:13,459 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:13,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:04:13,659 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,SelfDestructingSolverStorable6 [2024-11-10 22:04:13,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:13,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:13,660 INFO L85 PathProgramCache]: Analyzing trace with hash 611619370, now seen corresponding path program 1 times [2024-11-10 22:04:13,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:13,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117547276] [2024-11-10 22:04:13,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:13,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:13,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:13,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117547276] [2024-11-10 22:04:13,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117547276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:04:13,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089835478] [2024-11-10 22:04:13,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:13,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:04:13,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:04:13,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:04:13,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:04:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:13,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:04:13,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:04:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:13,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:04:13,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089835478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:13,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:04:13,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 22:04:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092014048] [2024-11-10 22:04:13,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:13,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:04:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:13,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:04:13,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:04:13,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-10 22:04:13,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 296 flow. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:13,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:13,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-10 22:04:13,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:15,961 INFO L124 PetriNetUnfolderBase]: 17709/30909 cut-off events. [2024-11-10 22:04:15,962 INFO L125 PetriNetUnfolderBase]: For 20599/20599 co-relation queries the response was YES. [2024-11-10 22:04:16,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66364 conditions, 30909 events. 17709/30909 cut-off events. For 20599/20599 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 257269 event pairs, 5745 based on Foata normal form. 336/29861 useless extension candidates. Maximal degree in co-relation 37591. Up to 12366 conditions per place. [2024-11-10 22:04:16,119 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 98 selfloop transitions, 12 changer transitions 0/131 dead transitions. [2024-11-10 22:04:16,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 131 transitions, 654 flow [2024-11-10 22:04:16,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:04:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:04:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 254 transitions. [2024-11-10 22:04:16,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.596244131455399 [2024-11-10 22:04:16,121 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 296 flow. Second operand 6 states and 254 transitions. [2024-11-10 22:04:16,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 131 transitions, 654 flow [2024-11-10 22:04:16,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 131 transitions, 630 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:04:16,136 INFO L231 Difference]: Finished difference. Result has 80 places, 72 transitions, 292 flow [2024-11-10 22:04:16,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=292, PETRI_PLACES=80, PETRI_TRANSITIONS=72} [2024-11-10 22:04:16,137 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 14 predicate places. [2024-11-10 22:04:16,137 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 72 transitions, 292 flow [2024-11-10 22:04:16,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:16,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:16,138 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-10 22:04:16,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:04:16,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:04:16,339 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:16,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:16,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1222484354, now seen corresponding path program 1 times [2024-11-10 22:04:16,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:16,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844305068] [2024-11-10 22:04:16,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:16,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:04:16,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:04:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:04:16,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:04:16,403 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:04:16,404 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-10 22:04:16,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-10 22:04:16,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-10 22:04:16,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-10 22:04:16,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-10 22:04:16,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-10 22:04:16,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-10 22:04:16,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-10 22:04:16,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-10 22:04:16,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-11-10 22:04:16,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:04:16,406 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-10 22:04:16,407 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:04:16,407 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 22:04:16,442 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-10 22:04:16,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 85 transitions, 242 flow [2024-11-10 22:04:16,559 INFO L124 PetriNetUnfolderBase]: 484/1910 cut-off events. [2024-11-10 22:04:16,560 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-11-10 22:04:16,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2346 conditions, 1910 events. 484/1910 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 13058 event pairs, 64 based on Foata normal form. 0/1332 useless extension candidates. Maximal degree in co-relation 1178. Up to 192 conditions per place. [2024-11-10 22:04:16,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 85 transitions, 242 flow [2024-11-10 22:04:16,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 82 transitions, 236 flow [2024-11-10 22:04:16,571 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:04:16,572 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;@5ef5f914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:04:16,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-10 22:04:16,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:04:16,575 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-10 22:04:16,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:04:16,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:16,576 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:04:16,576 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-10 22:04:16,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:16,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1594803206, now seen corresponding path program 1 times [2024-11-10 22:04:16,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:16,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769441209] [2024-11-10 22:04:16,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:16,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:16,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769441209] [2024-11-10 22:04:16,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769441209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:16,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:16,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:04:16,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861542450] [2024-11-10 22:04:16,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:16,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:16,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:16,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:16,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:16,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 85 [2024-11-10 22:04:16,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 82 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:04:16,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:16,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 85 [2024-11-10 22:04:16,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand