./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/weaver/test-context1.wvr.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'd63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/test-context1.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:42:52,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:42:52,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:42:52,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:42:52,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:42:52,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:42:52,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:42:52,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:42:52,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:42:52,283 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:42:52,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:42:52,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:42:52,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:42:52,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:42:52,285 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:42:52,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:42:52,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:42:52,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:42:52,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:42:52,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:42:52,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:42:52,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:42:52,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:42:52,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:42:52,286 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:42:52,286 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:42:52,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:42:52,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:42:52,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:42:52,288 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:42:52,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:42:52,288 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e [2024-11-07 23:42:52,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:42:52,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:42:52,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:42:52,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:42:52,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:42:52,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-context1.wvr.c [2024-11-07 23:42:53,782 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:42:53,975 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:42:53,976 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2024-11-07 23:42:53,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d17cee3e4/5812ad982b584112972dc16646d7b4e6/FLAGad79a5094 [2024-11-07 23:42:54,368 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d17cee3e4/5812ad982b584112972dc16646d7b4e6 [2024-11-07 23:42:54,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:42:54,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:42:54,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:42:54,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:42:54,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:42:54,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2089cfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54, skipping insertion in model container [2024-11-07 23:42:54,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:42:54,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:42:54,557 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:42:54,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:42:54,596 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:42:54,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54 WrapperNode [2024-11-07 23:42:54,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:42:54,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:42:54,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:42:54,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:42:54,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,642 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 147 [2024-11-07 23:42:54,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:42:54,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:42:54,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:42:54,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:42:54,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,677 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-07 23:42:54,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,701 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:42:54,702 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:42:54,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:42:54,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:42:54,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (1/1) ... [2024-11-07 23:42:54,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:42:54,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:54,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:42:54,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:42:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:42:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:42:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:42:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:42:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:42:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:42:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:42:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:42:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:42:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 23:42:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 23:42:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:42:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:42:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:42:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:42:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:42:54,773 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:42:54,863 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:42:54,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:42:55,190 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:42:55,190 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:42:55,462 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:42:55,463 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-07 23:42:55,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:42:55 BoogieIcfgContainer [2024-11-07 23:42:55,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:42:55,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:42:55,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:42:55,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:42:55,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:42:54" (1/3) ... [2024-11-07 23:42:55,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2cc630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:42:55, skipping insertion in model container [2024-11-07 23:42:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:54" (2/3) ... [2024-11-07 23:42:55,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2cc630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:42:55, skipping insertion in model container [2024-11-07 23:42:55,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:42:55" (3/3) ... [2024-11-07 23:42:55,476 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2024-11-07 23:42:55,488 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:42:55,488 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-07 23:42:55,488 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:42:55,562 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:42:55,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 98 flow [2024-11-07 23:42:55,631 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2024-11-07 23:42:55,633 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 23:42:55,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 5/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 100 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-07 23:42:55,638 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 98 flow [2024-11-07 23:42:55,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 85 flow [2024-11-07 23:42:55,647 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:42:55,661 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;@674536e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:42:55,663 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-07 23:42:55,666 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:42:55,668 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:42:55,668 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:42:55,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:55,669 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:42:55,669 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:42:55,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:55,675 INFO L85 PathProgramCache]: Analyzing trace with hash 505329, now seen corresponding path program 1 times [2024-11-07 23:42:55,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:55,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724411997] [2024-11-07 23:42:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:55,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:55,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:55,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724411997] [2024-11-07 23:42:55,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724411997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:55,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:55,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:42:55,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101758101] [2024-11-07 23:42:55,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:55,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:42:55,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:55,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:42:55,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:42:55,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-07 23:42:55,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-07 23:42:55,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:55,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-07 23:42:55,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:56,217 INFO L124 PetriNetUnfolderBase]: 265/462 cut-off events. [2024-11-07 23:42:56,221 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-07 23:42:56,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 462 events. 265/462 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1939 event pairs, 224 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 885. Up to 456 conditions per place. [2024-11-07 23:42:56,227 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2024-11-07 23:42:56,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 135 flow [2024-11-07 23:42:56,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:42:56,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:42:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-11-07 23:42:56,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-07 23:42:56,239 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 85 flow. Second operand 4 states and 60 transitions. [2024-11-07 23:42:56,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 135 flow [2024-11-07 23:42:56,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:42:56,250 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 93 flow [2024-11-07 23:42:56,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2024-11-07 23:42:56,256 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-11-07 23:42:56,258 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 93 flow [2024-11-07 23:42:56,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-07 23:42:56,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:56,258 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-07 23:42:56,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:42:56,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:42:56,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:56,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2125143173, now seen corresponding path program 1 times [2024-11-07 23:42:56,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:56,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560543792] [2024-11-07 23:42:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:56,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:56,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:56,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560543792] [2024-11-07 23:42:56,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560543792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:56,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672328350] [2024-11-07 23:42:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:56,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:56,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:56,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:42:56,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 23:42:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:56,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:42:56,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:56,576 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:42:56,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672328350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:56,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:42:56,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:42:56,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499449100] [2024-11-07 23:42:56,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:56,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:42:56,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:56,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:42:56,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:42:56,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-07 23:42:56,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-11-07 23:42:56,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:56,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-07 23:42:56,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:56,794 INFO L124 PetriNetUnfolderBase]: 265/461 cut-off events. [2024-11-07 23:42:56,795 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 23:42:56,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 461 events. 265/461 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1938 event pairs, 224 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 927. Up to 451 conditions per place. [2024-11-07 23:42:56,801 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2024-11-07 23:42:56,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 147 flow [2024-11-07 23:42:56,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:42:56,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:42:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-11-07 23:42:56,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-11-07 23:42:56,807 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 93 flow. Second operand 6 states and 60 transitions. [2024-11-07 23:42:56,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 147 flow [2024-11-07 23:42:56,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:42:56,808 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2024-11-07 23:42:56,809 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2024-11-07 23:42:56,809 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-07 23:42:56,809 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2024-11-07 23:42:56,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-11-07 23:42:56,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:56,810 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:56,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 23:42:57,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:57,012 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:42:57,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648030, now seen corresponding path program 1 times [2024-11-07 23:42:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:57,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420286930] [2024-11-07 23:42:57,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:57,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:57,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420286930] [2024-11-07 23:42:57,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420286930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:57,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:57,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:42:57,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647048088] [2024-11-07 23:42:57,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:57,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:42:57,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:57,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:42:57,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:42:57,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:42:57,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-07 23:42:57,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:57,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:42:57,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:57,248 INFO L124 PetriNetUnfolderBase]: 339/597 cut-off events. [2024-11-07 23:42:57,248 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-07 23:42:57,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 597 events. 339/597 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2534 event pairs, 134 based on Foata normal form. 13/424 useless extension candidates. Maximal degree in co-relation 1210. Up to 425 conditions per place. [2024-11-07 23:42:57,255 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 37 selfloop transitions, 2 changer transitions 3/46 dead transitions. [2024-11-07 23:42:57,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 215 flow [2024-11-07 23:42:57,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:42:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:42:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-11-07 23:42:57,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-07 23:42:57,257 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 3 states and 66 transitions. [2024-11-07 23:42:57,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 215 flow [2024-11-07 23:42:57,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 193 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-07 23:42:57,259 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 100 flow [2024-11-07 23:42:57,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-07 23:42:57,259 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2024-11-07 23:42:57,260 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 100 flow [2024-11-07 23:42:57,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-07 23:42:57,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:57,260 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:42:57,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:42:57,261 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:42:57,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:57,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1454928451, now seen corresponding path program 1 times [2024-11-07 23:42:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:57,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563470489] [2024-11-07 23:42:57,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:57,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:57,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563470489] [2024-11-07 23:42:57,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563470489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657273670] [2024-11-07 23:42:57,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:57,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:57,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:57,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:42:57,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 23:42:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:57,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:42:57,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:57,486 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:42:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:57,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657273670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:42:57,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:42:57,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-07 23:42:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25774839] [2024-11-07 23:42:57,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:42:57,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:42:57,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:57,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:42:57,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:42:57,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-07 23:42:57,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 100 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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) [2024-11-07 23:42:57,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:57,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-07 23:42:57,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:57,768 INFO L124 PetriNetUnfolderBase]: 342/609 cut-off events. [2024-11-07 23:42:57,769 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-07 23:42:57,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 609 events. 342/609 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2681 event pairs, 300 based on Foata normal form. 3/453 useless extension candidates. Maximal degree in co-relation 1360. Up to 594 conditions per place. [2024-11-07 23:42:57,772 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 26 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2024-11-07 23:42:57,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 208 flow [2024-11-07 23:42:57,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:42:57,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:42:57,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2024-11-07 23:42:57,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.21666666666666667 [2024-11-07 23:42:57,777 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 100 flow. Second operand 10 states and 91 transitions. [2024-11-07 23:42:57,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 208 flow [2024-11-07 23:42:57,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:42:57,779 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 172 flow [2024-11-07 23:42:57,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=172, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2024-11-07 23:42:57,779 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-11-07 23:42:57,779 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 172 flow [2024-11-07 23:42:57,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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) [2024-11-07 23:42:57,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:57,780 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:57,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 23:42:57,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:57,981 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:42:57,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:57,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648029, now seen corresponding path program 1 times [2024-11-07 23:42:57,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:57,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205742594] [2024-11-07 23:42:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:57,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:58,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:58,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:58,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205742594] [2024-11-07 23:42:58,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205742594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:58,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:58,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:42:58,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750979029] [2024-11-07 23:42:58,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:58,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:42:58,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:58,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:42:58,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:42:58,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:42:58,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-07 23:42:58,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:58,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:42:58,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:58,171 INFO L124 PetriNetUnfolderBase]: 327/582 cut-off events. [2024-11-07 23:42:58,171 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-07 23:42:58,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 582 events. 327/582 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2488 event pairs, 119 based on Foata normal form. 12/440 useless extension candidates. Maximal degree in co-relation 1332. Up to 425 conditions per place. [2024-11-07 23:42:58,175 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 45 selfloop transitions, 2 changer transitions 3/54 dead transitions. [2024-11-07 23:42:58,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 299 flow [2024-11-07 23:42:58,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:42:58,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:42:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-07 23:42:58,176 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-11-07 23:42:58,176 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 172 flow. Second operand 3 states and 60 transitions. [2024-11-07 23:42:58,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 299 flow [2024-11-07 23:42:58,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 288 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-07 23:42:58,179 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 169 flow [2024-11-07 23:42:58,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-11-07 23:42:58,179 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-11-07 23:42:58,180 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 169 flow [2024-11-07 23:42:58,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-07 23:42:58,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:58,180 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:58,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:42:58,180 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:42:58,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375046, now seen corresponding path program 1 times [2024-11-07 23:42:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:58,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517303472] [2024-11-07 23:42:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:58,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:58,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:58,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517303472] [2024-11-07 23:42:58,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517303472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:58,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104113474] [2024-11-07 23:42:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:58,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:58,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:58,251 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:42:58,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 23:42:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:58,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:42:58,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:58,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:58,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:42:58,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104113474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:58,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:42:58,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2024-11-07 23:42:58,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959364984] [2024-11-07 23:42:58,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:58,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:42:58,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:58,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:42:58,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:42:58,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:42:58,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-07 23:42:58,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:58,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:42:58,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:58,536 INFO L124 PetriNetUnfolderBase]: 415/709 cut-off events. [2024-11-07 23:42:58,536 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-07 23:42:58,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 709 events. 415/709 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2879 event pairs, 173 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 1648. Up to 371 conditions per place. [2024-11-07 23:42:58,540 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 47 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2024-11-07 23:42:58,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 320 flow [2024-11-07 23:42:58,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:42:58,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:42:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-07 23:42:58,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-11-07 23:42:58,542 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 169 flow. Second operand 4 states and 73 transitions. [2024-11-07 23:42:58,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 320 flow [2024-11-07 23:42:58,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:42:58,545 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 214 flow [2024-11-07 23:42:58,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2024-11-07 23:42:58,547 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2024-11-07 23:42:58,547 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 214 flow [2024-11-07 23:42:58,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-07 23:42:58,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:58,548 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:58,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 23:42:58,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:58,748 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:42:58,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375039, now seen corresponding path program 1 times [2024-11-07 23:42:58,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:58,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008243371] [2024-11-07 23:42:58,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:58,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:58,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008243371] [2024-11-07 23:42:58,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008243371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875522832] [2024-11-07 23:42:58,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:58,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:58,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:58,836 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:42:58,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 23:42:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:58,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:42:58,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:58,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:58,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:42:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:58,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875522832] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:42:58,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:42:58,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-07 23:42:58,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419013109] [2024-11-07 23:42:58,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:42:58,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 23:42:58,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 23:42:58,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-07 23:42:58,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:42:58,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2024-11-07 23:42:58,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:58,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:42:58,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:59,258 INFO L124 PetriNetUnfolderBase]: 1040/1773 cut-off events. [2024-11-07 23:42:59,259 INFO L125 PetriNetUnfolderBase]: For 931/931 co-relation queries the response was YES. [2024-11-07 23:42:59,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4557 conditions, 1773 events. 1040/1773 cut-off events. For 931/931 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8199 event pairs, 276 based on Foata normal form. 26/1525 useless extension candidates. Maximal degree in co-relation 4519. Up to 556 conditions per place. [2024-11-07 23:42:59,270 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 94 selfloop transitions, 9 changer transitions 3/110 dead transitions. [2024-11-07 23:42:59,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 110 transitions, 640 flow [2024-11-07 23:42:59,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:42:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:42:59,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-11-07 23:42:59,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5436507936507936 [2024-11-07 23:42:59,274 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 214 flow. Second operand 6 states and 137 transitions. [2024-11-07 23:42:59,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 110 transitions, 640 flow [2024-11-07 23:42:59,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 110 transitions, 611 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-11-07 23:42:59,280 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 309 flow [2024-11-07 23:42:59,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2024-11-07 23:42:59,281 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2024-11-07 23:42:59,281 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 309 flow [2024-11-07 23:42:59,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2024-11-07 23:42:59,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:59,283 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:59,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 23:42:59,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-07 23:42:59,487 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:42:59,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:59,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375045, now seen corresponding path program 1 times [2024-11-07 23:42:59,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:59,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302574507] [2024-11-07 23:42:59,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:59,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:59,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302574507] [2024-11-07 23:42:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302574507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764999122] [2024-11-07 23:42:59,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:59,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:59,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:59,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:42:59,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 23:42:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:59,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:42:59,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:59,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:59,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:42:59,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:42:59,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764999122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:42:59,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:42:59,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-07 23:42:59,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879755534] [2024-11-07 23:42:59,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:42:59,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 23:42:59,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:59,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 23:42:59,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-07 23:42:59,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:42:59,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 309 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2024-11-07 23:42:59,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:59,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:42:59,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:00,129 INFO L124 PetriNetUnfolderBase]: 1824/3102 cut-off events. [2024-11-07 23:43:00,130 INFO L125 PetriNetUnfolderBase]: For 4067/4067 co-relation queries the response was YES. [2024-11-07 23:43:00,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8295 conditions, 3102 events. 1824/3102 cut-off events. For 4067/4067 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16215 event pairs, 333 based on Foata normal form. 247/2910 useless extension candidates. Maximal degree in co-relation 8253. Up to 1357 conditions per place. [2024-11-07 23:43:00,146 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 99 selfloop transitions, 18 changer transitions 18/139 dead transitions. [2024-11-07 23:43:00,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 139 transitions, 923 flow [2024-11-07 23:43:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 23:43:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 23:43:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2024-11-07 23:43:00,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-11-07 23:43:00,148 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 309 flow. Second operand 8 states and 170 transitions. [2024-11-07 23:43:00,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 139 transitions, 923 flow [2024-11-07 23:43:00,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 139 transitions, 923 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:43:00,163 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 576 flow [2024-11-07 23:43:00,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=576, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-11-07 23:43:00,164 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 31 predicate places. [2024-11-07 23:43:00,166 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 576 flow [2024-11-07 23:43:00,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2024-11-07 23:43:00,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:00,166 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-07 23:43:00,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 23:43:00,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:00,367 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:43:00,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:00,367 INFO L85 PathProgramCache]: Analyzing trace with hash 736662151, now seen corresponding path program 2 times [2024-11-07 23:43:00,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:00,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125259875] [2024-11-07 23:43:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:43:00,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:00,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125259875] [2024-11-07 23:43:00,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125259875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:00,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552678184] [2024-11-07 23:43:00,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:43:00,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:00,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:00,567 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:43:00,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 23:43:00,632 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:43:00,632 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:43:00,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:43:00,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 23:43:00,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 23:43:00,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552678184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:00,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:00,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-07 23:43:00,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557810193] [2024-11-07 23:43:00,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:00,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 23:43:00,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:00,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 23:43:00,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:43:00,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-07 23:43:00,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 576 flow. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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) [2024-11-07 23:43:00,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:00,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-07 23:43:00,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:01,229 INFO L124 PetriNetUnfolderBase]: 1825/3105 cut-off events. [2024-11-07 23:43:01,230 INFO L125 PetriNetUnfolderBase]: For 7926/7926 co-relation queries the response was YES. [2024-11-07 23:43:01,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9520 conditions, 3105 events. 1825/3105 cut-off events. For 7926/7926 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16945 event pairs, 1563 based on Foata normal form. 2/2667 useless extension candidates. Maximal degree in co-relation 9465. Up to 3084 conditions per place. [2024-11-07 23:43:01,249 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 47 selfloop transitions, 19 changer transitions 0/69 dead transitions. [2024-11-07 23:43:01,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 69 transitions, 714 flow [2024-11-07 23:43:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:43:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:43:01,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 110 transitions. [2024-11-07 23:43:01,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1870748299319728 [2024-11-07 23:43:01,251 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 576 flow. Second operand 14 states and 110 transitions. [2024-11-07 23:43:01,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 69 transitions, 714 flow [2024-11-07 23:43:01,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 69 transitions, 692 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-07 23:43:01,268 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 598 flow [2024-11-07 23:43:01,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=598, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-11-07 23:43:01,268 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 38 predicate places. [2024-11-07 23:43:01,269 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 598 flow [2024-11-07 23:43:01,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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) [2024-11-07 23:43:01,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:01,269 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2024-11-07 23:43:01,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 23:43:01,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 23:43:01,474 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:43:01,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:01,475 INFO L85 PathProgramCache]: Analyzing trace with hash 504756521, now seen corresponding path program 2 times [2024-11-07 23:43:01,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:01,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777769802] [2024-11-07 23:43:01,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:01,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:01,605 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:43:01,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:01,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777769802] [2024-11-07 23:43:01,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777769802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:01,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807587289] [2024-11-07 23:43:01,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:43:01,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:01,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:01,608 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:43:01,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 23:43:01,679 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:43:01,679 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:43:01,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 23:43:01,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-07 23:43:01,765 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:43:01,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807587289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:43:01,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:43:01,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2024-11-07 23:43:01,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259135533] [2024-11-07 23:43:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:43:01,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:43:01,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:43:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:43:01,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:43:01,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-07 23:43:01,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:01,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:43:01,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:02,022 INFO L124 PetriNetUnfolderBase]: 1668/2868 cut-off events. [2024-11-07 23:43:02,023 INFO L125 PetriNetUnfolderBase]: For 7564/7564 co-relation queries the response was YES. [2024-11-07 23:43:02,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8213 conditions, 2868 events. 1668/2868 cut-off events. For 7564/7564 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 15648 event pairs, 1472 based on Foata normal form. 122/2558 useless extension candidates. Maximal degree in co-relation 8104. Up to 2859 conditions per place. [2024-11-07 23:43:02,035 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 59 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2024-11-07 23:43:02,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 63 transitions, 634 flow [2024-11-07 23:43:02,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:43:02,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:43:02,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-07 23:43:02,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3492063492063492 [2024-11-07 23:43:02,037 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 598 flow. Second operand 3 states and 44 transitions. [2024-11-07 23:43:02,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 63 transitions, 634 flow [2024-11-07 23:43:02,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 547 flow, removed 11 selfloop flow, removed 13 redundant places. [2024-11-07 23:43:02,049 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 429 flow [2024-11-07 23:43:02,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-07 23:43:02,050 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2024-11-07 23:43:02,050 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 429 flow [2024-11-07 23:43:02,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-07 23:43:02,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:02,050 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:02,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 23:43:02,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:02,251 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:43:02,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1905796755, now seen corresponding path program 1 times [2024-11-07 23:43:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:02,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536734359] [2024-11-07 23:43:02,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:02,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-07 23:43:02,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:02,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536734359] [2024-11-07 23:43:02,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536734359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:43:02,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:43:02,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:43:02,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925044228] [2024-11-07 23:43:02,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:43:02,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:43:02,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:43:02,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:43:02,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:43:02,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 429 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-07 23:43:02,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:02,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:43:02,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:02,676 INFO L124 PetriNetUnfolderBase]: 1735/3004 cut-off events. [2024-11-07 23:43:02,676 INFO L125 PetriNetUnfolderBase]: For 5626/5626 co-relation queries the response was YES. [2024-11-07 23:43:02,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8393 conditions, 3004 events. 1735/3004 cut-off events. For 5626/5626 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 16270 event pairs, 1540 based on Foata normal form. 12/2561 useless extension candidates. Maximal degree in co-relation 8369. Up to 2857 conditions per place. [2024-11-07 23:43:02,690 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 57 selfloop transitions, 2 changer transitions 14/76 dead transitions. [2024-11-07 23:43:02,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 76 transitions, 605 flow [2024-11-07 23:43:02,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:43:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:43:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-07 23:43:02,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-07 23:43:02,691 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 429 flow. Second operand 4 states and 66 transitions. [2024-11-07 23:43:02,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 76 transitions, 605 flow [2024-11-07 23:43:02,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 76 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:43:02,700 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 432 flow [2024-11-07 23:43:02,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=432, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2024-11-07 23:43:02,701 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 28 predicate places. [2024-11-07 23:43:02,701 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 432 flow [2024-11-07 23:43:02,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-07 23:43:02,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:02,701 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:02,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:43:02,701 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:43:02,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:02,701 INFO L85 PathProgramCache]: Analyzing trace with hash 454518985, now seen corresponding path program 1 times [2024-11-07 23:43:02,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:02,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177610485] [2024-11-07 23:43:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:02,811 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:43:02,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:02,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177610485] [2024-11-07 23:43:02,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177610485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:02,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134844694] [2024-11-07 23:43:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:02,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:02,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:02,814 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:43:02,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 23:43:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:02,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 23:43:02,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:43:03,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:03,105 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:43:03,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134844694] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:03,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:03,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 13 [2024-11-07 23:43:03,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852115420] [2024-11-07 23:43:03,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:03,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 23:43:03,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:03,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 23:43:03,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=109, Unknown=0, NotChecked=0, Total=210 [2024-11-07 23:43:03,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:43:03,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 432 flow. Second operand has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 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) [2024-11-07 23:43:03,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:03,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:43:03,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:04,067 INFO L124 PetriNetUnfolderBase]: 4852/8292 cut-off events. [2024-11-07 23:43:04,067 INFO L125 PetriNetUnfolderBase]: For 19440/19440 co-relation queries the response was YES. [2024-11-07 23:43:04,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22341 conditions, 8292 events. 4852/8292 cut-off events. For 19440/19440 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 45460 event pairs, 1243 based on Foata normal form. 408/7421 useless extension candidates. Maximal degree in co-relation 22315. Up to 1535 conditions per place. [2024-11-07 23:43:04,109 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 165 selfloop transitions, 51 changer transitions 42/261 dead transitions. [2024-11-07 23:43:04,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 261 transitions, 1925 flow [2024-11-07 23:43:04,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 23:43:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 23:43:04,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 287 transitions. [2024-11-07 23:43:04,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-11-07 23:43:04,113 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 432 flow. Second operand 14 states and 287 transitions. [2024-11-07 23:43:04,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 261 transitions, 1925 flow [2024-11-07 23:43:04,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 261 transitions, 1919 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-07 23:43:04,143 INFO L231 Difference]: Finished difference. Result has 84 places, 101 transitions, 1068 flow [2024-11-07 23:43:04,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1068, PETRI_PLACES=84, PETRI_TRANSITIONS=101} [2024-11-07 23:43:04,144 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 44 predicate places. [2024-11-07 23:43:04,144 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 101 transitions, 1068 flow [2024-11-07 23:43:04,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 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) [2024-11-07 23:43:04,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:04,145 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:04,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-07 23:43:04,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:04,346 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:43:04,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:04,346 INFO L85 PathProgramCache]: Analyzing trace with hash -7735982, now seen corresponding path program 1 times [2024-11-07 23:43:04,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:04,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149201282] [2024-11-07 23:43:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:04,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-07 23:43:04,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:04,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149201282] [2024-11-07 23:43:04,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149201282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:43:04,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:43:04,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:43:04,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075892618] [2024-11-07 23:43:04,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:43:04,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:43:04,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:04,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:43:04,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:43:04,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:43:04,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 101 transitions, 1068 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-07 23:43:04,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:04,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:43:04,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:05,239 INFO L124 PetriNetUnfolderBase]: 4820/8247 cut-off events. [2024-11-07 23:43:05,239 INFO L125 PetriNetUnfolderBase]: For 22586/22586 co-relation queries the response was YES. [2024-11-07 23:43:05,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23811 conditions, 8247 events. 4820/8247 cut-off events. For 22586/22586 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 47423 event pairs, 4273 based on Foata normal form. 26/6996 useless extension candidates. Maximal degree in co-relation 23779. Up to 8238 conditions per place. [2024-11-07 23:43:05,274 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 92 selfloop transitions, 1 changer transitions 3/99 dead transitions. [2024-11-07 23:43:05,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 99 transitions, 1218 flow [2024-11-07 23:43:05,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:43:05,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:43:05,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-07 23:43:05,275 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-11-07 23:43:05,275 INFO L175 Difference]: Start difference. First operand has 84 places, 101 transitions, 1068 flow. Second operand 3 states and 42 transitions. [2024-11-07 23:43:05,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 99 transitions, 1218 flow [2024-11-07 23:43:05,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 99 transitions, 1163 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-07 23:43:05,318 INFO L231 Difference]: Finished difference. Result has 81 places, 96 transitions, 966 flow [2024-11-07 23:43:05,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=966, PETRI_PLACES=81, PETRI_TRANSITIONS=96} [2024-11-07 23:43:05,319 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 41 predicate places. [2024-11-07 23:43:05,319 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 96 transitions, 966 flow [2024-11-07 23:43:05,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-07 23:43:05,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:05,319 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:05,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:43:05,319 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:43:05,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash -267872235, now seen corresponding path program 2 times [2024-11-07 23:43:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:05,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257015063] [2024-11-07 23:43:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:05,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:05,646 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:43:05,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:05,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257015063] [2024-11-07 23:43:05,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257015063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:05,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073970256] [2024-11-07 23:43:05,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:43:05,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:05,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:05,650 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:43:05,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 23:43:05,754 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 23:43:05,755 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:43:05,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 23:43:05,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:06,004 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:43:06,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:43:06,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073970256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:06,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:06,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 28 [2024-11-07 23:43:06,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700157464] [2024-11-07 23:43:06,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:06,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-07 23:43:06,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:06,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-07 23:43:06,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=470, Unknown=0, NotChecked=0, Total=870 [2024-11-07 23:43:06,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:43:06,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 96 transitions, 966 flow. Second operand has 30 states, 30 states have (on average 10.7) internal successors, (321), 30 states have internal predecessors, (321), 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) [2024-11-07 23:43:06,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:06,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:43:06,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:07,907 INFO L124 PetriNetUnfolderBase]: 7354/12390 cut-off events. [2024-11-07 23:43:07,907 INFO L125 PetriNetUnfolderBase]: For 85076/85076 co-relation queries the response was YES. [2024-11-07 23:43:07,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38388 conditions, 12390 events. 7354/12390 cut-off events. For 85076/85076 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 61388 event pairs, 1172 based on Foata normal form. 710/12114 useless extension candidates. Maximal degree in co-relation 38356. Up to 2450 conditions per place. [2024-11-07 23:43:07,963 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 398 selfloop transitions, 163 changer transitions 16/580 dead transitions. [2024-11-07 23:43:07,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 580 transitions, 4925 flow [2024-11-07 23:43:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-07 23:43:07,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-07 23:43:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 684 transitions. [2024-11-07 23:43:07,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40714285714285714 [2024-11-07 23:43:07,967 INFO L175 Difference]: Start difference. First operand has 81 places, 96 transitions, 966 flow. Second operand 40 states and 684 transitions. [2024-11-07 23:43:07,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 580 transitions, 4925 flow [2024-11-07 23:43:08,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 580 transitions, 4924 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:43:08,052 INFO L231 Difference]: Finished difference. Result has 142 places, 208 transitions, 2919 flow [2024-11-07 23:43:08,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=965, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=2919, PETRI_PLACES=142, PETRI_TRANSITIONS=208} [2024-11-07 23:43:08,054 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 102 predicate places. [2024-11-07 23:43:08,054 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 208 transitions, 2919 flow [2024-11-07 23:43:08,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.7) internal successors, (321), 30 states have internal predecessors, (321), 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) [2024-11-07 23:43:08,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:08,055 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:08,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 23:43:08,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:08,256 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-07 23:43:08,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:08,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1714498811, now seen corresponding path program 3 times [2024-11-07 23:43:08,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:08,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114894954] [2024-11-07 23:43:08,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:08,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 513 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:43:08,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:08,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114894954] [2024-11-07 23:43:08,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114894954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:08,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035531387] [2024-11-07 23:43:08,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 23:43:08,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:08,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:08,912 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:43:08,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 23:43:09,009 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 23:43:09,009 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:43:09,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:43:09,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-07 23:43:09,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:09,305 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-07 23:43:09,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035531387] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:09,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:09,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 2, 2] total 21 [2024-11-07 23:43:09,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127474205] [2024-11-07 23:43:09,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:09,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 23:43:09,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:09,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 23:43:09,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2024-11-07 23:43:09,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-07 23:43:09,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 208 transitions, 2919 flow. Second operand has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 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) [2024-11-07 23:43:09,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:09,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-07 23:43:09,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:11,240 INFO L124 PetriNetUnfolderBase]: 7656/12898 cut-off events. [2024-11-07 23:43:11,240 INFO L125 PetriNetUnfolderBase]: For 103182/103182 co-relation queries the response was YES. [2024-11-07 23:43:11,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45347 conditions, 12898 events. 7656/12898 cut-off events. For 103182/103182 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 63647 event pairs, 1554 based on Foata normal form. 140/12012 useless extension candidates. Maximal degree in co-relation 45288. Up to 2550 conditions per place. [2024-11-07 23:43:11,307 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 0 selfloop transitions, 0 changer transitions 461/461 dead transitions. [2024-11-07 23:43:11,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 461 transitions, 5634 flow [2024-11-07 23:43:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 23:43:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 23:43:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 380 transitions. [2024-11-07 23:43:11,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41125541125541126 [2024-11-07 23:43:11,309 INFO L175 Difference]: Start difference. First operand has 142 places, 208 transitions, 2919 flow. Second operand 22 states and 380 transitions. [2024-11-07 23:43:11,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 461 transitions, 5634 flow [2024-11-07 23:43:11,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 461 transitions, 4891 flow, removed 177 selfloop flow, removed 29 redundant places. [2024-11-07 23:43:11,861 INFO L231 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2024-11-07 23:43:11,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2146, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=0, PETRI_PLACES=133, PETRI_TRANSITIONS=0} [2024-11-07 23:43:11,861 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 93 predicate places. [2024-11-07 23:43:11,861 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2024-11-07 23:43:11,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 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) [2024-11-07 23:43:11,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2024-11-07 23:43:11,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2024-11-07 23:43:11,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2024-11-07 23:43:11,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2024-11-07 23:43:11,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2024-11-07 23:43:11,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2024-11-07 23:43:11,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2024-11-07 23:43:11,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2024-11-07 23:43:11,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2024-11-07 23:43:11,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2024-11-07 23:43:11,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2024-11-07 23:43:11,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2024-11-07 23:43:11,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 23:43:12,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 23:43:12,068 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:12,072 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:43:12,072 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:43:12,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:43:12 BasicIcfg [2024-11-07 23:43:12,076 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:43:12,077 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:43:12,077 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:43:12,077 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:43:12,078 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:42:55" (3/4) ... [2024-11-07 23:43:12,080 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:43:12,082 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 23:43:12,082 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 23:43:12,087 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-07 23:43:12,088 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-07 23:43:12,089 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-07 23:43:12,089 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 23:43:12,170 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:43:12,170 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:43:12,170 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:43:12,173 INFO L158 Benchmark]: Toolchain (without parser) took 17800.22ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 92.2MB in the beginning and 380.4MB in the end (delta: -288.3MB). Peak memory consumption was 960.2MB. Max. memory is 16.1GB. [2024-11-07 23:43:12,173 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:43:12,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.42ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 80.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:43:12,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.52ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 78.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:43:12,173 INFO L158 Benchmark]: Boogie Preprocessor took 55.11ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:43:12,174 INFO L158 Benchmark]: RCFGBuilder took 762.56ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 73.0MB in the end (delta: 4.1MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-11-07 23:43:12,174 INFO L158 Benchmark]: TraceAbstraction took 16610.48ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 72.5MB in the beginning and 384.8MB in the end (delta: -312.3MB). Peak memory consumption was 938.9MB. Max. memory is 16.1GB. [2024-11-07 23:43:12,174 INFO L158 Benchmark]: Witness Printer took 93.48ms. Allocated memory is still 1.4GB. Free memory was 384.8MB in the beginning and 380.4MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:43:12,175 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.42ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 80.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.52ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 78.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.11ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 762.56ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 73.0MB in the end (delta: 4.1MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16610.48ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 72.5MB in the beginning and 384.8MB in the end (delta: -312.3MB). Peak memory consumption was 938.9MB. Max. memory is 16.1GB. * Witness Printer took 93.48ms. Allocated memory is still 1.4GB. Free memory was 384.8MB in the beginning and 380.4MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 64 locations, 28 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.5s, OverallIterations: 15, TraceHistogramMax: 19, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1626 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1616 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1770 IncrementalHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 1 mSDtfsCounter, 1770 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 500 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2919occurred in iteration=14, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 505 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 651 ConstructedInterpolants, 0 QuantifiedInterpolants, 2889 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 32 InterpolantComputations, 8 PerfectInterpolantSequences, 1112/2219 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:43:12,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE