./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-three-array-sum.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/popl20-three-array-sum.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', 'c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e'] 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/popl20-three-array-sum.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 c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:42:44,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:42:44,247 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:42:44,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:42:44,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:42:44,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:42:44,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:42:44,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:42:44,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:42:44,283 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:42:44,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:42:44,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:42:44,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:42:44,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:42:44,284 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:42:44,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:42:44,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:42:44,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:42:44,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:42:44,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:42:44,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:42:44,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:42:44,287 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 -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-11-07 23:42:44,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:42:44,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:42:44,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:42:44,587 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:42:44,587 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:42:44,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-07 23:42:45,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:42:46,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:42:46,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-07 23:42:46,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6bbdbc12e/f8e0f79ed32b444a936862875f9a3347/FLAG5d8cedb87 [2024-11-07 23:42:46,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6bbdbc12e/f8e0f79ed32b444a936862875f9a3347 [2024-11-07 23:42:46,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:42:46,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:42:46,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:42:46,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:42:46,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:42:46,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d5cfb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46, skipping insertion in model container [2024-11-07 23:42:46,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:42:46,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:42:46,328 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:42:46,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:42:46,374 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:42:46,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46 WrapperNode [2024-11-07 23:42:46,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:42:46,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:42:46,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:42:46,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:42:46,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,416 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 146 [2024-11-07 23:42:46,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:42:46,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:42:46,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:42:46,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:42:46,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,433 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,452 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-07 23:42:46,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:42:46,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:42:46,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:42:46,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:42:46,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (1/1) ... [2024-11-07 23:42:46,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:42:46,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:46,506 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 23:42:46,513 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 23:42:46,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:42:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:42:46,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:42:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:42:46,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:42:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:42:46,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:42:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:42:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:42:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:42:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:42:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 23:42:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 23:42:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:42:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:42:46,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:42:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:42:46,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:42:46,536 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 23:42:46,639 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:42:46,641 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:42:47,033 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:42:47,033 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:42:47,339 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:42:47,339 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-07 23:42:47,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:42:47 BoogieIcfgContainer [2024-11-07 23:42:47,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:42:47,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:42:47,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:42:47,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:42:47,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:42:46" (1/3) ... [2024-11-07 23:42:47,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130d4874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:42:47, skipping insertion in model container [2024-11-07 23:42:47,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:46" (2/3) ... [2024-11-07 23:42:47,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130d4874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:42:47, skipping insertion in model container [2024-11-07 23:42:47,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:42:47" (3/3) ... [2024-11-07 23:42:47,349 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-11-07 23:42:47,363 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:42:47,363 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-07 23:42:47,363 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:42:47,426 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:42:47,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 147 flow [2024-11-07 23:42:47,497 INFO L124 PetriNetUnfolderBase]: 7/60 cut-off events. [2024-11-07 23:42:47,499 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:42:47,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 60 events. 7/60 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-07 23:42:47,503 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 63 transitions, 147 flow [2024-11-07 23:42:47,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 58 transitions, 131 flow [2024-11-07 23:42:47,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:42:47,533 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;@396a1bca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:42:47,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-07 23:42:47,538 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:42:47,539 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:42:47,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:42:47,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:47,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:42:47,541 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:47,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:47,545 INFO L85 PathProgramCache]: Analyzing trace with hash 612274, now seen corresponding path program 1 times [2024-11-07 23:42:47,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:47,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24869005] [2024-11-07 23:42:47,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:47,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:47,844 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 23:42:47,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:47,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24869005] [2024-11-07 23:42:47,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24869005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:47,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:47,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:42:47,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686612438] [2024-11-07 23:42:47,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:47,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:42:47,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:47,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:42:47,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:42:47,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2024-11-07 23:42:47,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 58 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 23:42:47,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:47,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2024-11-07 23:42:47,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:48,287 INFO L124 PetriNetUnfolderBase]: 697/1438 cut-off events. [2024-11-07 23:42:48,288 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-07 23:42:48,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 1438 events. 697/1438 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8871 event pairs, 482 based on Foata normal form. 3/1141 useless extension candidates. Maximal degree in co-relation 2201. Up to 938 conditions per place. [2024-11-07 23:42:48,310 INFO L140 encePairwiseOnDemand]: 47/63 looper letters, 37 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2024-11-07 23:42:48,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 67 transitions, 243 flow [2024-11-07 23:42:48,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:42:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:42:48,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2024-11-07 23:42:48,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5753968253968254 [2024-11-07 23:42:48,325 INFO L175 Difference]: Start difference. First operand has 61 places, 58 transitions, 131 flow. Second operand 4 states and 145 transitions. [2024-11-07 23:42:48,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 67 transitions, 243 flow [2024-11-07 23:42:48,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 67 transitions, 234 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 23:42:48,334 INFO L231 Difference]: Finished difference. Result has 62 places, 67 transitions, 210 flow [2024-11-07 23:42:48,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=62, PETRI_TRANSITIONS=67} [2024-11-07 23:42:48,339 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-11-07 23:42:48,339 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 67 transitions, 210 flow [2024-11-07 23:42:48,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 23:42:48,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:48,339 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-07 23:42:48,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:42:48,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:48,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:48,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1060991097, now seen corresponding path program 1 times [2024-11-07 23:42:48,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:48,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315352074] [2024-11-07 23:42:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:48,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:48,511 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 23:42:48,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:48,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315352074] [2024-11-07 23:42:48,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315352074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:48,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750807819] [2024-11-07 23:42:48,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:48,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:48,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:48,514 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 23:42:48,516 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 23:42:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:48,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:42:48,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:48,646 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 23:42:48,647 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:42:48,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750807819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:48,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:42:48,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:42:48,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775551432] [2024-11-07 23:42:48,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:48,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:42:48,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:48,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:42:48,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:42:48,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2024-11-07 23:42:48,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 67 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 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 23:42:48,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:48,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2024-11-07 23:42:48,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:49,013 INFO L124 PetriNetUnfolderBase]: 697/1435 cut-off events. [2024-11-07 23:42:49,014 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-07 23:42:49,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2467 conditions, 1435 events. 697/1435 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8870 event pairs, 482 based on Foata normal form. 3/1143 useless extension candidates. Maximal degree in co-relation 2394. Up to 923 conditions per place. [2024-11-07 23:42:49,026 INFO L140 encePairwiseOnDemand]: 50/63 looper letters, 27 selfloop transitions, 17 changer transitions 0/64 dead transitions. [2024-11-07 23:42:49,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 64 transitions, 286 flow [2024-11-07 23:42:49,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:42:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:42:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2024-11-07 23:42:49,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4894179894179894 [2024-11-07 23:42:49,031 INFO L175 Difference]: Start difference. First operand has 62 places, 67 transitions, 210 flow. Second operand 6 states and 185 transitions. [2024-11-07 23:42:49,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 64 transitions, 286 flow [2024-11-07 23:42:49,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 286 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:42:49,035 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 232 flow [2024-11-07 23:42:49,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2024-11-07 23:42:49,036 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2024-11-07 23:42:49,037 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 232 flow [2024-11-07 23:42:49,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 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 23:42:49,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:49,037 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:42:49,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:42:49,238 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 23:42:49,238 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:49,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:49,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1469013752, now seen corresponding path program 1 times [2024-11-07 23:42:49,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:49,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064820619] [2024-11-07 23:42:49,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:49,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:49,366 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 23:42:49,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:49,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064820619] [2024-11-07 23:42:49,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064820619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:49,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745682184] [2024-11-07 23:42:49,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:49,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:49,371 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 23:42:49,374 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 23:42:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:49,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:42:49,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:49,484 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 23:42:49,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:42:49,529 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 23:42:49,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745682184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:42:49,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:42:49,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-07 23:42:49,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412775277] [2024-11-07 23:42:49,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:42:49,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:42:49,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:49,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:42:49,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:42:49,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2024-11-07 23:42:49,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 232 flow. Second operand has 12 states, 12 states have (on average 24.083333333333332) internal successors, (289), 12 states have internal predecessors, (289), 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 23:42:49,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:49,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2024-11-07 23:42:49,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:49,932 INFO L124 PetriNetUnfolderBase]: 706/1471 cut-off events. [2024-11-07 23:42:49,932 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-11-07 23:42:49,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2608 conditions, 1471 events. 706/1471 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 9192 event pairs, 482 based on Foata normal form. 9/1185 useless extension candidates. Maximal degree in co-relation 2396. Up to 938 conditions per place. [2024-11-07 23:42:49,945 INFO L140 encePairwiseOnDemand]: 50/63 looper letters, 34 selfloop transitions, 37 changer transitions 0/91 dead transitions. [2024-11-07 23:42:49,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 91 transitions, 548 flow [2024-11-07 23:42:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:42:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:42:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2024-11-07 23:42:49,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2024-11-07 23:42:49,948 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 232 flow. Second operand 10 states and 310 transitions. [2024-11-07 23:42:49,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 91 transitions, 548 flow [2024-11-07 23:42:49,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 91 transitions, 465 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-07 23:42:49,954 INFO L231 Difference]: Finished difference. Result has 71 places, 91 transitions, 447 flow [2024-11-07 23:42:49,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=447, PETRI_PLACES=71, PETRI_TRANSITIONS=91} [2024-11-07 23:42:49,955 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 10 predicate places. [2024-11-07 23:42:49,955 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 91 transitions, 447 flow [2024-11-07 23:42:49,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.083333333333332) internal successors, (289), 12 states have internal predecessors, (289), 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 23:42:49,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:49,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:49,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 23:42:50,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:50,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:50,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:50,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1020442761, now seen corresponding path program 1 times [2024-11-07 23:42:50,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:50,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001511683] [2024-11-07 23:42:50,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:50,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:50,245 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 23:42:50,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:50,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001511683] [2024-11-07 23:42:50,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001511683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:50,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:50,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:42:50,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878299553] [2024-11-07 23:42:50,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:50,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:42:50,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:42:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:42:50,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2024-11-07 23:42:50,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 91 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 23:42:50,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:50,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2024-11-07 23:42:50,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:50,572 INFO L124 PetriNetUnfolderBase]: 1490/2560 cut-off events. [2024-11-07 23:42:50,573 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-07 23:42:50,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4824 conditions, 2560 events. 1490/2560 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 15257 event pairs, 802 based on Foata normal form. 74/2061 useless extension candidates. Maximal degree in co-relation 4726. Up to 1559 conditions per place. [2024-11-07 23:42:50,587 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 99 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2024-11-07 23:42:50,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 124 transitions, 725 flow [2024-11-07 23:42:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:42:50,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:42:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2024-11-07 23:42:50,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2024-11-07 23:42:50,588 INFO L175 Difference]: Start difference. First operand has 71 places, 91 transitions, 447 flow. Second operand 4 states and 177 transitions. [2024-11-07 23:42:50,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 124 transitions, 725 flow [2024-11-07 23:42:50,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 124 transitions, 688 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-07 23:42:50,593 INFO L231 Difference]: Finished difference. Result has 74 places, 94 transitions, 439 flow [2024-11-07 23:42:50,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=439, PETRI_PLACES=74, PETRI_TRANSITIONS=94} [2024-11-07 23:42:50,593 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2024-11-07 23:42:50,593 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 94 transitions, 439 flow [2024-11-07 23:42:50,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 23:42:50,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:50,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:50,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:42:50,594 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:50,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:50,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1345993272, now seen corresponding path program 1 times [2024-11-07 23:42:50,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:50,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895677770] [2024-11-07 23:42:50,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:50,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:50,674 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 23:42:50,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:50,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895677770] [2024-11-07 23:42:50,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895677770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:50,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:50,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:42:50,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407315645] [2024-11-07 23:42:50,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:50,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:42:50,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:50,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:42:50,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:42:50,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 63 [2024-11-07 23:42:50,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 94 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 23:42:50,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:50,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 63 [2024-11-07 23:42:50,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:51,033 INFO L124 PetriNetUnfolderBase]: 1551/3174 cut-off events. [2024-11-07 23:42:51,034 INFO L125 PetriNetUnfolderBase]: For 955/1057 co-relation queries the response was YES. [2024-11-07 23:42:51,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6337 conditions, 3174 events. 1551/3174 cut-off events. For 955/1057 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 22189 event pairs, 742 based on Foata normal form. 0/2684 useless extension candidates. Maximal degree in co-relation 6241. Up to 1534 conditions per place. [2024-11-07 23:42:51,062 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 86 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-07 23:42:51,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 112 transitions, 675 flow [2024-11-07 23:42:51,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:42:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:42:51,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-07 23:42:51,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7195767195767195 [2024-11-07 23:42:51,064 INFO L175 Difference]: Start difference. First operand has 74 places, 94 transitions, 439 flow. Second operand 3 states and 136 transitions. [2024-11-07 23:42:51,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 112 transitions, 675 flow [2024-11-07 23:42:51,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 112 transitions, 669 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:42:51,072 INFO L231 Difference]: Finished difference. Result has 76 places, 96 transitions, 457 flow [2024-11-07 23:42:51,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=457, PETRI_PLACES=76, PETRI_TRANSITIONS=96} [2024-11-07 23:42:51,072 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 15 predicate places. [2024-11-07 23:42:51,073 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 96 transitions, 457 flow [2024-11-07 23:42:51,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 23:42:51,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:51,073 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:51,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:42:51,075 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:51,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:51,076 INFO L85 PathProgramCache]: Analyzing trace with hash 232420135, now seen corresponding path program 1 times [2024-11-07 23:42:51,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:51,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198699672] [2024-11-07 23:42:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:51,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:51,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:42:51,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:51,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198699672] [2024-11-07 23:42:51,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198699672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:51,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:51,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:42:51,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449413968] [2024-11-07 23:42:51,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:51,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:42:51,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:51,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:42:51,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:42:51,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 63 [2024-11-07 23:42:51,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 96 transitions, 457 flow. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:42:51,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:51,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 63 [2024-11-07 23:42:51,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:51,738 INFO L124 PetriNetUnfolderBase]: 2210/4359 cut-off events. [2024-11-07 23:42:51,738 INFO L125 PetriNetUnfolderBase]: For 1725/1757 co-relation queries the response was YES. [2024-11-07 23:42:51,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9500 conditions, 4359 events. 2210/4359 cut-off events. For 1725/1757 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 30065 event pairs, 1330 based on Foata normal form. 100/3915 useless extension candidates. Maximal degree in co-relation 9403. Up to 1991 conditions per place. [2024-11-07 23:42:51,773 INFO L140 encePairwiseOnDemand]: 51/63 looper letters, 96 selfloop transitions, 18 changer transitions 0/137 dead transitions. [2024-11-07 23:42:51,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 137 transitions, 819 flow [2024-11-07 23:42:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:42:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:42:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 255 transitions. [2024-11-07 23:42:51,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6746031746031746 [2024-11-07 23:42:51,776 INFO L175 Difference]: Start difference. First operand has 76 places, 96 transitions, 457 flow. Second operand 6 states and 255 transitions. [2024-11-07 23:42:51,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 137 transitions, 819 flow [2024-11-07 23:42:51,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 137 transitions, 810 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:42:51,789 INFO L231 Difference]: Finished difference. Result has 84 places, 100 transitions, 543 flow [2024-11-07 23:42:51,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=543, PETRI_PLACES=84, PETRI_TRANSITIONS=100} [2024-11-07 23:42:51,790 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 23 predicate places. [2024-11-07 23:42:51,790 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 100 transitions, 543 flow [2024-11-07 23:42:51,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:42:51,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:51,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:51,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:42:51,791 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:51,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash 714400379, now seen corresponding path program 1 times [2024-11-07 23:42:51,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:51,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347979954] [2024-11-07 23:42:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:51,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:51,879 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 23:42:51,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:51,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347979954] [2024-11-07 23:42:51,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347979954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:51,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:51,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:42:51,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724319680] [2024-11-07 23:42:51,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:51,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:42:51,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:51,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:42:51,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:42:51,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 63 [2024-11-07 23:42:51,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 100 transitions, 543 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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 23:42:51,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:51,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 63 [2024-11-07 23:42:51,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:52,487 INFO L124 PetriNetUnfolderBase]: 3397/5877 cut-off events. [2024-11-07 23:42:52,487 INFO L125 PetriNetUnfolderBase]: For 3921/3977 co-relation queries the response was YES. [2024-11-07 23:42:52,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14312 conditions, 5877 events. 3397/5877 cut-off events. For 3921/3977 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 37059 event pairs, 1779 based on Foata normal form. 236/5659 useless extension candidates. Maximal degree in co-relation 14209. Up to 3528 conditions per place. [2024-11-07 23:42:52,566 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 112 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2024-11-07 23:42:52,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 136 transitions, 921 flow [2024-11-07 23:42:52,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:42:52,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:42:52,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 169 transitions. [2024-11-07 23:42:52,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6706349206349206 [2024-11-07 23:42:52,567 INFO L175 Difference]: Start difference. First operand has 84 places, 100 transitions, 543 flow. Second operand 4 states and 169 transitions. [2024-11-07 23:42:52,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 136 transitions, 921 flow [2024-11-07 23:42:52,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 136 transitions, 905 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 23:42:52,574 INFO L231 Difference]: Finished difference. Result has 88 places, 101 transitions, 548 flow [2024-11-07 23:42:52,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=548, PETRI_PLACES=88, PETRI_TRANSITIONS=101} [2024-11-07 23:42:52,575 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-11-07 23:42:52,575 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 101 transitions, 548 flow [2024-11-07 23:42:52,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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 23:42:52,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:52,576 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:52,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:42:52,576 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:52,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:52,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1139398177, now seen corresponding path program 1 times [2024-11-07 23:42:52,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:52,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882731148] [2024-11-07 23:42:52,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:52,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:52,678 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 23:42:52,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:52,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882731148] [2024-11-07 23:42:52,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882731148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:52,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132407439] [2024-11-07 23:42:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:52,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:52,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:52,682 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 23:42:52,684 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 23:42:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:52,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:42:52,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:42:52,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:42:52,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132407439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:52,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:42:52,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2024-11-07 23:42:52,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891882478] [2024-11-07 23:42:52,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:52,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:42:52,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:52,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:42:52,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:42:52,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 63 [2024-11-07 23:42:52,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 101 transitions, 548 flow. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:42:52,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:52,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 63 [2024-11-07 23:42:52,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:53,345 INFO L124 PetriNetUnfolderBase]: 2102/4010 cut-off events. [2024-11-07 23:42:53,346 INFO L125 PetriNetUnfolderBase]: For 3302/3366 co-relation queries the response was YES. [2024-11-07 23:42:53,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9719 conditions, 4010 events. 2102/4010 cut-off events. For 3302/3366 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 25734 event pairs, 1412 based on Foata normal form. 41/3536 useless extension candidates. Maximal degree in co-relation 9614. Up to 2491 conditions per place. [2024-11-07 23:42:53,381 INFO L140 encePairwiseOnDemand]: 53/63 looper letters, 82 selfloop transitions, 18 changer transitions 2/125 dead transitions. [2024-11-07 23:42:53,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 125 transitions, 831 flow [2024-11-07 23:42:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:42:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:42:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2024-11-07 23:42:53,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6322751322751323 [2024-11-07 23:42:53,384 INFO L175 Difference]: Start difference. First operand has 88 places, 101 transitions, 548 flow. Second operand 6 states and 239 transitions. [2024-11-07 23:42:53,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 125 transitions, 831 flow [2024-11-07 23:42:53,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 125 transitions, 821 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:42:53,394 INFO L231 Difference]: Finished difference. Result has 93 places, 103 transitions, 600 flow [2024-11-07 23:42:53,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=93, PETRI_TRANSITIONS=103} [2024-11-07 23:42:53,395 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 32 predicate places. [2024-11-07 23:42:53,395 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 103 transitions, 600 flow [2024-11-07 23:42:53,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:42:53,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:53,395 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-07 23:42:53,414 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 23:42:53,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:53,596 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:53,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:53,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1645532079, now seen corresponding path program 2 times [2024-11-07 23:42:53,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:53,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247160441] [2024-11-07 23:42:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:53,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:53,803 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 23:42:53,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:53,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247160441] [2024-11-07 23:42:53,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247160441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:53,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868281030] [2024-11-07 23:42:53,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:42:53,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:53,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:53,807 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 23:42:53,808 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 23:42:53,875 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:42:53,875 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:42:53,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:42:53,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:53,928 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 23:42:53,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:42:53,957 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 23:42:53,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868281030] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:42:53,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:42:53,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-07 23:42:53,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620806540] [2024-11-07 23:42:53,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:42:53,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 23:42:53,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 23:42:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:42:53,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2024-11-07 23:42:54,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 103 transitions, 600 flow. Second operand has 14 states, 14 states have (on average 24.142857142857142) internal successors, (338), 14 states have internal predecessors, (338), 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 23:42:54,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:54,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2024-11-07 23:42:54,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:54,593 INFO L124 PetriNetUnfolderBase]: 1785/3578 cut-off events. [2024-11-07 23:42:54,594 INFO L125 PetriNetUnfolderBase]: For 3267/3281 co-relation queries the response was YES. [2024-11-07 23:42:54,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9440 conditions, 3578 events. 1785/3578 cut-off events. For 3267/3281 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 23756 event pairs, 1371 based on Foata normal form. 4/3305 useless extension candidates. Maximal degree in co-relation 9289. Up to 2504 conditions per place. [2024-11-07 23:42:54,621 INFO L140 encePairwiseOnDemand]: 50/63 looper letters, 40 selfloop transitions, 50 changer transitions 0/111 dead transitions. [2024-11-07 23:42:54,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 837 flow [2024-11-07 23:42:54,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 23:42:54,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 23:42:54,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 635 transitions. [2024-11-07 23:42:54,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.419973544973545 [2024-11-07 23:42:54,624 INFO L175 Difference]: Start difference. First operand has 93 places, 103 transitions, 600 flow. Second operand 24 states and 635 transitions. [2024-11-07 23:42:54,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 837 flow [2024-11-07 23:42:54,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 111 transitions, 803 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:42:54,635 INFO L231 Difference]: Finished difference. Result has 114 places, 111 transitions, 747 flow [2024-11-07 23:42:54,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=747, PETRI_PLACES=114, PETRI_TRANSITIONS=111} [2024-11-07 23:42:54,635 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 53 predicate places. [2024-11-07 23:42:54,635 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 747 flow [2024-11-07 23:42:54,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 24.142857142857142) internal successors, (338), 14 states have internal predecessors, (338), 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 23:42:54,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:54,636 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:54,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 23:42:54,836 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,SelfDestructingSolverStorable8 [2024-11-07 23:42:54,837 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:54,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:54,837 INFO L85 PathProgramCache]: Analyzing trace with hash 116033873, now seen corresponding path program 1 times [2024-11-07 23:42:54,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:54,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421462403] [2024-11-07 23:42:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:54,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:54,910 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 23:42:54,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:54,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421462403] [2024-11-07 23:42:54,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421462403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:42:54,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:42:54,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:42:54,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519865799] [2024-11-07 23:42:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:42:54,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:42:54,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:42:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:42:54,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 63 [2024-11-07 23:42:54,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 747 flow. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 23:42:54,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:54,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 63 [2024-11-07 23:42:54,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:55,568 INFO L124 PetriNetUnfolderBase]: 4003/7124 cut-off events. [2024-11-07 23:42:55,569 INFO L125 PetriNetUnfolderBase]: For 7210/7460 co-relation queries the response was YES. [2024-11-07 23:42:55,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18316 conditions, 7124 events. 4003/7124 cut-off events. For 7210/7460 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 47115 event pairs, 1946 based on Foata normal form. 127/6517 useless extension candidates. Maximal degree in co-relation 18221. Up to 3618 conditions per place. [2024-11-07 23:42:55,616 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 136 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2024-11-07 23:42:55,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 159 transitions, 1263 flow [2024-11-07 23:42:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:42:55,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:42:55,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 171 transitions. [2024-11-07 23:42:55,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-07 23:42:55,618 INFO L175 Difference]: Start difference. First operand has 114 places, 111 transitions, 747 flow. Second operand 4 states and 171 transitions. [2024-11-07 23:42:55,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 159 transitions, 1263 flow [2024-11-07 23:42:55,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 159 transitions, 1151 flow, removed 13 selfloop flow, removed 9 redundant places. [2024-11-07 23:42:55,627 INFO L231 Difference]: Finished difference. Result has 110 places, 113 transitions, 657 flow [2024-11-07 23:42:55,627 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=657, PETRI_PLACES=110, PETRI_TRANSITIONS=113} [2024-11-07 23:42:55,628 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 49 predicate places. [2024-11-07 23:42:55,629 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 113 transitions, 657 flow [2024-11-07 23:42:55,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 23:42:55,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:55,629 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:55,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:42:55,630 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:55,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:55,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1266516722, now seen corresponding path program 1 times [2024-11-07 23:42:55,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:55,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090999540] [2024-11-07 23:42:55,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:55,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:42:55,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:55,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090999540] [2024-11-07 23:42:55,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090999540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:55,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339860006] [2024-11-07 23:42:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:55,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:55,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:55,735 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 23:42:55,736 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 23:42:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:55,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:42:55,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:42:55,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:42:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:42:56,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339860006] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:42:56,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:42:56,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-07 23:42:56,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252200683] [2024-11-07 23:42:56,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:42:56,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:42:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:56,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:42:56,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:42:56,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 63 [2024-11-07 23:42:56,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 113 transitions, 657 flow. Second operand has 19 states, 19 states have (on average 23.105263157894736) internal successors, (439), 19 states have internal predecessors, (439), 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 23:42:56,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:56,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 63 [2024-11-07 23:42:56,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:57,806 INFO L124 PetriNetUnfolderBase]: 4749/7885 cut-off events. [2024-11-07 23:42:57,806 INFO L125 PetriNetUnfolderBase]: For 7578/8147 co-relation queries the response was YES. [2024-11-07 23:42:57,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22046 conditions, 7885 events. 4749/7885 cut-off events. For 7578/8147 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 50400 event pairs, 1093 based on Foata normal form. 285/7416 useless extension candidates. Maximal degree in co-relation 21884. Up to 1596 conditions per place. [2024-11-07 23:42:57,872 INFO L140 encePairwiseOnDemand]: 48/63 looper letters, 208 selfloop transitions, 76 changer transitions 0/304 dead transitions. [2024-11-07 23:42:57,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 304 transitions, 2122 flow [2024-11-07 23:42:57,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 23:42:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 23:42:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 563 transitions. [2024-11-07 23:42:57,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5256769374416433 [2024-11-07 23:42:57,876 INFO L175 Difference]: Start difference. First operand has 110 places, 113 transitions, 657 flow. Second operand 17 states and 563 transitions. [2024-11-07 23:42:57,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 304 transitions, 2122 flow [2024-11-07 23:42:57,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 304 transitions, 2104 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:42:57,904 INFO L231 Difference]: Finished difference. Result has 127 places, 147 transitions, 1181 flow [2024-11-07 23:42:57,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1181, PETRI_PLACES=127, PETRI_TRANSITIONS=147} [2024-11-07 23:42:57,905 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 66 predicate places. [2024-11-07 23:42:57,905 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 147 transitions, 1181 flow [2024-11-07 23:42:57,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 23.105263157894736) internal successors, (439), 19 states have internal predecessors, (439), 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 23:42:57,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:57,906 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:57,922 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 23:42:58,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 23:42:58,107 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:42:58,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:42:58,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1701626036, now seen corresponding path program 1 times [2024-11-07 23:42:58,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:42:58,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982069372] [2024-11-07 23:42:58,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:58,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:42:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 23:42:58,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:42:58,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982069372] [2024-11-07 23:42:58,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982069372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:42:58,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281304438] [2024-11-07 23:42:58,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:42:58,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:42:58,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:42:58,326 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 23:42:58,328 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 23:42:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:42:58,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 23:42:58,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:42:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-07 23:42:58,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:42:58,625 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-07 23:42:58,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281304438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:42:58,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:42:58,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2024-11-07 23:42:58,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551969354] [2024-11-07 23:42:58,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:42:58,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 23:42:58,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:42:58,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 23:42:58,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-11-07 23:42:58,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2024-11-07 23:42:58,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 147 transitions, 1181 flow. Second operand has 21 states, 21 states have (on average 24.285714285714285) internal successors, (510), 21 states have internal predecessors, (510), 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 23:42:58,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:42:58,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2024-11-07 23:42:58,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:42:59,795 INFO L124 PetriNetUnfolderBase]: 4792/8521 cut-off events. [2024-11-07 23:42:59,796 INFO L125 PetriNetUnfolderBase]: For 13590/14073 co-relation queries the response was YES. [2024-11-07 23:42:59,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24835 conditions, 8521 events. 4792/8521 cut-off events. For 13590/14073 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 58250 event pairs, 3715 based on Foata normal form. 104/7884 useless extension candidates. Maximal degree in co-relation 24722. Up to 3619 conditions per place. [2024-11-07 23:42:59,847 INFO L140 encePairwiseOnDemand]: 53/63 looper letters, 65 selfloop transitions, 60 changer transitions 0/146 dead transitions. [2024-11-07 23:42:59,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 146 transitions, 1287 flow [2024-11-07 23:42:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 23:42:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 23:42:59,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 362 transitions. [2024-11-07 23:42:59,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47883597883597884 [2024-11-07 23:42:59,849 INFO L175 Difference]: Start difference. First operand has 127 places, 147 transitions, 1181 flow. Second operand 12 states and 362 transitions. [2024-11-07 23:42:59,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 146 transitions, 1287 flow [2024-11-07 23:42:59,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 146 transitions, 1145 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-07 23:42:59,869 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 940 flow [2024-11-07 23:42:59,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=940, PETRI_PLACES=131, PETRI_TRANSITIONS=125} [2024-11-07 23:42:59,870 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 70 predicate places. [2024-11-07 23:42:59,870 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 940 flow [2024-11-07 23:42:59,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.285714285714285) internal successors, (510), 21 states have internal predecessors, (510), 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 23:42:59,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:42:59,871 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:42:59,887 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 23:43:00,071 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,SelfDestructingSolverStorable11 [2024-11-07 23:43:00,072 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:00,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:00,073 INFO L85 PathProgramCache]: Analyzing trace with hash 793445938, now seen corresponding path program 1 times [2024-11-07 23:43:00,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:00,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746808419] [2024-11-07 23:43:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:00,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 23:43:00,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:00,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746808419] [2024-11-07 23:43:00,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746808419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:43:00,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:43:00,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:43:00,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876803611] [2024-11-07 23:43:00,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:43:00,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:43:00,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:00,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:43:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:43:00,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 63 [2024-11-07 23:43:00,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 940 flow. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:43:00,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:00,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 63 [2024-11-07 23:43:00,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:00,919 INFO L124 PetriNetUnfolderBase]: 5790/9825 cut-off events. [2024-11-07 23:43:00,920 INFO L125 PetriNetUnfolderBase]: For 7440/7885 co-relation queries the response was YES. [2024-11-07 23:43:00,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25018 conditions, 9825 events. 5790/9825 cut-off events. For 7440/7885 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 66738 event pairs, 4425 based on Foata normal form. 66/8614 useless extension candidates. Maximal degree in co-relation 24912. Up to 7685 conditions per place. [2024-11-07 23:43:00,966 INFO L140 encePairwiseOnDemand]: 54/63 looper letters, 75 selfloop transitions, 17 changer transitions 28/142 dead transitions. [2024-11-07 23:43:00,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 142 transitions, 1248 flow [2024-11-07 23:43:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:43:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:43:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 234 transitions. [2024-11-07 23:43:00,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-11-07 23:43:00,967 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 940 flow. Second operand 6 states and 234 transitions. [2024-11-07 23:43:00,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 142 transitions, 1248 flow [2024-11-07 23:43:00,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 142 transitions, 1084 flow, removed 3 selfloop flow, removed 13 redundant places. [2024-11-07 23:43:00,988 INFO L231 Difference]: Finished difference. Result has 125 places, 114 transitions, 719 flow [2024-11-07 23:43:00,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=719, PETRI_PLACES=125, PETRI_TRANSITIONS=114} [2024-11-07 23:43:00,988 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 64 predicate places. [2024-11-07 23:43:00,989 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 114 transitions, 719 flow [2024-11-07 23:43:00,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:43:00,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:00,989 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:00,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:43:00,989 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:00,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash -501443449, now seen corresponding path program 1 times [2024-11-07 23:43:00,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:00,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828399937] [2024-11-07 23:43:00,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:00,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:43:01,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828399937] [2024-11-07 23:43:01,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828399937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658347338] [2024-11-07 23:43:01,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:01,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:01,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:01,074 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 23:43:01,075 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 23:43:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:01,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 23:43:01,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:43:01,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:43:01,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658347338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:43:01,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:43:01,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-07 23:43:01,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698511352] [2024-11-07 23:43:01,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:43:01,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:43:01,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:01,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:43:01,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 23:43:01,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 63 [2024-11-07 23:43:01,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 114 transitions, 719 flow. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 23:43:01,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:01,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 63 [2024-11-07 23:43:01,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:01,980 INFO L124 PetriNetUnfolderBase]: 6418/9784 cut-off events. [2024-11-07 23:43:01,980 INFO L125 PetriNetUnfolderBase]: For 6347/7316 co-relation queries the response was YES. [2024-11-07 23:43:02,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26708 conditions, 9784 events. 6418/9784 cut-off events. For 6347/7316 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 61516 event pairs, 729 based on Foata normal form. 493/9887 useless extension candidates. Maximal degree in co-relation 26611. Up to 3828 conditions per place. [2024-11-07 23:43:02,047 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 129 selfloop transitions, 7 changer transitions 0/154 dead transitions. [2024-11-07 23:43:02,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 154 transitions, 1137 flow [2024-11-07 23:43:02,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:43:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:43:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2024-11-07 23:43:02,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2024-11-07 23:43:02,048 INFO L175 Difference]: Start difference. First operand has 125 places, 114 transitions, 719 flow. Second operand 4 states and 160 transitions. [2024-11-07 23:43:02,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 154 transitions, 1137 flow [2024-11-07 23:43:02,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 154 transitions, 1037 flow, removed 16 selfloop flow, removed 10 redundant places. [2024-11-07 23:43:02,084 INFO L231 Difference]: Finished difference. Result has 108 places, 112 transitions, 641 flow [2024-11-07 23:43:02,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=641, PETRI_PLACES=108, PETRI_TRANSITIONS=112} [2024-11-07 23:43:02,085 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 47 predicate places. [2024-11-07 23:43:02,085 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 112 transitions, 641 flow [2024-11-07 23:43:02,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 23:43:02,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:02,085 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:02,097 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 23:43:02,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:02,286 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:02,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:02,286 INFO L85 PathProgramCache]: Analyzing trace with hash -501443448, now seen corresponding path program 1 times [2024-11-07 23:43:02,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:02,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372714905] [2024-11-07 23:43:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:02,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:43:02,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:02,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372714905] [2024-11-07 23:43:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372714905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:02,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710240187] [2024-11-07 23:43:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:02,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:02,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:02,405 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 23:43:02,407 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 23:43:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:02,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:43:02,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:43:02,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:43:02,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710240187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:02,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:02,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-07 23:43:02,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400139653] [2024-11-07 23:43:02,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:02,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 23:43:02,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:02,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 23:43:02,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 23:43:02,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 63 [2024-11-07 23:43:02,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 112 transitions, 641 flow. Second operand has 10 states, 10 states have (on average 28.7) internal successors, (287), 10 states have internal predecessors, (287), 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 23:43:02,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:02,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 63 [2024-11-07 23:43:02,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:03,680 INFO L124 PetriNetUnfolderBase]: 7968/13305 cut-off events. [2024-11-07 23:43:03,681 INFO L125 PetriNetUnfolderBase]: For 9797/10742 co-relation queries the response was YES. [2024-11-07 23:43:03,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34242 conditions, 13305 events. 7968/13305 cut-off events. For 9797/10742 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 92393 event pairs, 1436 based on Foata normal form. 915/13676 useless extension candidates. Maximal degree in co-relation 34154. Up to 3469 conditions per place. [2024-11-07 23:43:03,735 INFO L140 encePairwiseOnDemand]: 56/63 looper letters, 195 selfloop transitions, 10 changer transitions 0/224 dead transitions. [2024-11-07 23:43:03,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 224 transitions, 1426 flow [2024-11-07 23:43:03,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 23:43:03,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 23:43:03,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 288 transitions. [2024-11-07 23:43:03,736 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6530612244897959 [2024-11-07 23:43:03,736 INFO L175 Difference]: Start difference. First operand has 108 places, 112 transitions, 641 flow. Second operand 7 states and 288 transitions. [2024-11-07 23:43:03,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 224 transitions, 1426 flow [2024-11-07 23:43:03,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 224 transitions, 1404 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:43:03,759 INFO L231 Difference]: Finished difference. Result has 115 places, 117 transitions, 692 flow [2024-11-07 23:43:03,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=692, PETRI_PLACES=115, PETRI_TRANSITIONS=117} [2024-11-07 23:43:03,759 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 54 predicate places. [2024-11-07 23:43:03,759 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 117 transitions, 692 flow [2024-11-07 23:43:03,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 28.7) internal successors, (287), 10 states have internal predecessors, (287), 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 23:43:03,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:03,760 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 2, 2, 2, 1, 1, 1] [2024-11-07 23:43:03,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 23:43:03,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 23:43:03,964 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:03,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1504849555, now seen corresponding path program 2 times [2024-11-07 23:43:03,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:03,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866482618] [2024-11-07 23:43:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:03,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:43:04,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:04,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866482618] [2024-11-07 23:43:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866482618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:04,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296370396] [2024-11-07 23:43:04,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:43:04,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:04,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:04,284 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 23:43:04,286 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 23:43:04,361 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:43:04,362 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:43:04,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:43:04,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-07 23:43:04,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-07 23:43:04,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296370396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:04,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:04,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 3, 3] total 20 [2024-11-07 23:43:04,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162778872] [2024-11-07 23:43:04,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:04,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 23:43:04,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:04,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 23:43:04,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-07 23:43:04,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2024-11-07 23:43:04,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 117 transitions, 692 flow. Second operand has 21 states, 21 states have (on average 24.238095238095237) internal successors, (509), 21 states have internal predecessors, (509), 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 23:43:04,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:04,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2024-11-07 23:43:04,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:05,576 INFO L124 PetriNetUnfolderBase]: 5922/9570 cut-off events. [2024-11-07 23:43:05,576 INFO L125 PetriNetUnfolderBase]: For 14290/14578 co-relation queries the response was YES. [2024-11-07 23:43:05,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27630 conditions, 9570 events. 5922/9570 cut-off events. For 14290/14578 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 61411 event pairs, 4337 based on Foata normal form. 107/8759 useless extension candidates. Maximal degree in co-relation 27551. Up to 7969 conditions per place. [2024-11-07 23:43:05,623 INFO L140 encePairwiseOnDemand]: 51/63 looper letters, 36 selfloop transitions, 70 changer transitions 0/127 dead transitions. [2024-11-07 23:43:05,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 967 flow [2024-11-07 23:43:05,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 23:43:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 23:43:05,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 514 transitions. [2024-11-07 23:43:05,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.429406850459482 [2024-11-07 23:43:05,625 INFO L175 Difference]: Start difference. First operand has 115 places, 117 transitions, 692 flow. Second operand 19 states and 514 transitions. [2024-11-07 23:43:05,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 967 flow [2024-11-07 23:43:05,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 127 transitions, 912 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-07 23:43:05,644 INFO L231 Difference]: Finished difference. Result has 125 places, 127 transitions, 840 flow [2024-11-07 23:43:05,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=840, PETRI_PLACES=125, PETRI_TRANSITIONS=127} [2024-11-07 23:43:05,645 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 64 predicate places. [2024-11-07 23:43:05,645 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 127 transitions, 840 flow [2024-11-07 23:43:05,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.238095238095237) internal successors, (509), 21 states have internal predecessors, (509), 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 23:43:05,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:05,645 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:05,657 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 23:43:05,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:05,846 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:05,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:05,846 INFO L85 PathProgramCache]: Analyzing trace with hash 272233574, now seen corresponding path program 1 times [2024-11-07 23:43:05,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:05,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450572534] [2024-11-07 23:43:05,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:05,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:05,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 23:43:05,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:05,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450572534] [2024-11-07 23:43:05,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450572534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:05,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783538402] [2024-11-07 23:43:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:05,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:05,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:05,926 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 23:43:05,927 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 23:43:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:06,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:43:06,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 23:43:06,047 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 23:43:06,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783538402] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:06,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:06,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:43:06,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416840916] [2024-11-07 23:43:06,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:06,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:43:06,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:06,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:43:06,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:43:06,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2024-11-07 23:43:06,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 127 transitions, 840 flow. Second operand has 12 states, 12 states have (on average 29.0) internal successors, (348), 12 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:43:06,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:06,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2024-11-07 23:43:06,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:07,229 INFO L124 PetriNetUnfolderBase]: 9517/15159 cut-off events. [2024-11-07 23:43:07,230 INFO L125 PetriNetUnfolderBase]: For 17024/17991 co-relation queries the response was YES. [2024-11-07 23:43:07,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41910 conditions, 15159 events. 9517/15159 cut-off events. For 17024/17991 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 100558 event pairs, 1988 based on Foata normal form. 816/14909 useless extension candidates. Maximal degree in co-relation 41826. Up to 6110 conditions per place. [2024-11-07 23:43:07,301 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 266 selfloop transitions, 18 changer transitions 0/304 dead transitions. [2024-11-07 23:43:07,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 304 transitions, 2225 flow [2024-11-07 23:43:07,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:43:07,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:43:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 429 transitions. [2024-11-07 23:43:07,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-07 23:43:07,303 INFO L175 Difference]: Start difference. First operand has 125 places, 127 transitions, 840 flow. Second operand 10 states and 429 transitions. [2024-11-07 23:43:07,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 304 transitions, 2225 flow [2024-11-07 23:43:07,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 304 transitions, 2078 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-11-07 23:43:07,325 INFO L231 Difference]: Finished difference. Result has 127 places, 136 transitions, 780 flow [2024-11-07 23:43:07,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=780, PETRI_PLACES=127, PETRI_TRANSITIONS=136} [2024-11-07 23:43:07,326 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 66 predicate places. [2024-11-07 23:43:07,326 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 136 transitions, 780 flow [2024-11-07 23:43:07,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.0) internal successors, (348), 12 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:43:07,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:07,326 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:07,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-07 23:43:07,530 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,SelfDestructingSolverStorable16 [2024-11-07 23:43:07,531 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:07,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:07,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1998715420, now seen corresponding path program 1 times [2024-11-07 23:43:07,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:07,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948747966] [2024-11-07 23:43:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:07,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 23:43:07,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:07,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948747966] [2024-11-07 23:43:07,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948747966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:43:07,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:43:07,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:43:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17051785] [2024-11-07 23:43:07,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:43:07,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:43:07,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:07,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:43:07,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:43:07,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 63 [2024-11-07 23:43:07,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 136 transitions, 780 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 23:43:07,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:07,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 63 [2024-11-07 23:43:07,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:08,995 INFO L124 PetriNetUnfolderBase]: 11512/19223 cut-off events. [2024-11-07 23:43:08,995 INFO L125 PetriNetUnfolderBase]: For 26914/27599 co-relation queries the response was YES. [2024-11-07 23:43:09,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56957 conditions, 19223 events. 11512/19223 cut-off events. For 26914/27599 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 136390 event pairs, 3463 based on Foata normal form. 522/19032 useless extension candidates. Maximal degree in co-relation 56879. Up to 7417 conditions per place. [2024-11-07 23:43:09,138 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 169 selfloop transitions, 10 changer transitions 0/196 dead transitions. [2024-11-07 23:43:09,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 196 transitions, 1436 flow [2024-11-07 23:43:09,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:43:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:43:09,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions. [2024-11-07 23:43:09,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6468253968253969 [2024-11-07 23:43:09,139 INFO L175 Difference]: Start difference. First operand has 127 places, 136 transitions, 780 flow. Second operand 4 states and 163 transitions. [2024-11-07 23:43:09,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 196 transitions, 1436 flow [2024-11-07 23:43:09,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 196 transitions, 1384 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-11-07 23:43:09,230 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 787 flow [2024-11-07 23:43:09,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=787, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-11-07 23:43:09,230 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 65 predicate places. [2024-11-07 23:43:09,230 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 787 flow [2024-11-07 23:43:09,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 23:43:09,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:09,231 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:09,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 23:43:09,231 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:09,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:09,231 INFO L85 PathProgramCache]: Analyzing trace with hash 886737835, now seen corresponding path program 1 times [2024-11-07 23:43:09,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:09,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775082149] [2024-11-07 23:43:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:09,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:43:09,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:09,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775082149] [2024-11-07 23:43:09,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775082149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:09,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269433392] [2024-11-07 23:43:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:09,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:09,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:09,317 INFO L229 MonitoredProcess]: Starting monitored process 12 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 23:43:09,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 23:43:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:09,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 23:43:09,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:43:09,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 23:43:09,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269433392] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:09,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:09,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-07 23:43:09,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670160016] [2024-11-07 23:43:09,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:09,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:43:09,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:09,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:43:09,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:43:09,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 63 [2024-11-07 23:43:09,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 787 flow. Second operand has 19 states, 19 states have (on average 22.05263157894737) internal successors, (419), 19 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:43:09,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:09,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 63 [2024-11-07 23:43:09,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:12,009 INFO L124 PetriNetUnfolderBase]: 13976/21968 cut-off events. [2024-11-07 23:43:12,009 INFO L125 PetriNetUnfolderBase]: For 48153/48353 co-relation queries the response was YES. [2024-11-07 23:43:12,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69249 conditions, 21968 events. 13976/21968 cut-off events. For 48153/48353 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 146575 event pairs, 1304 based on Foata normal form. 282/20231 useless extension candidates. Maximal degree in co-relation 69172. Up to 3636 conditions per place. [2024-11-07 23:43:12,148 INFO L140 encePairwiseOnDemand]: 47/63 looper letters, 312 selfloop transitions, 71 changer transitions 18/416 dead transitions. [2024-11-07 23:43:12,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 416 transitions, 3245 flow [2024-11-07 23:43:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 23:43:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 23:43:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 555 transitions. [2024-11-07 23:43:12,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46365914786967416 [2024-11-07 23:43:12,151 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 787 flow. Second operand 19 states and 555 transitions. [2024-11-07 23:43:12,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 416 transitions, 3245 flow [2024-11-07 23:43:12,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 416 transitions, 3140 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-11-07 23:43:12,217 INFO L231 Difference]: Finished difference. Result has 142 places, 141 transitions, 935 flow [2024-11-07 23:43:12,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=935, PETRI_PLACES=142, PETRI_TRANSITIONS=141} [2024-11-07 23:43:12,217 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 81 predicate places. [2024-11-07 23:43:12,217 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 141 transitions, 935 flow [2024-11-07 23:43:12,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 22.05263157894737) internal successors, (419), 19 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:43:12,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:12,218 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:12,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-07 23:43:12,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:12,418 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:12,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:12,419 INFO L85 PathProgramCache]: Analyzing trace with hash -915116344, now seen corresponding path program 2 times [2024-11-07 23:43:12,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:12,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521342286] [2024-11-07 23:43:12,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:12,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-07 23:43:12,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:12,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521342286] [2024-11-07 23:43:12,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521342286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:12,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209862585] [2024-11-07 23:43:12,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:43:12,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:12,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:12,469 INFO L229 MonitoredProcess]: Starting monitored process 13 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 23:43:12,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-07 23:43:12,563 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:43:12,563 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:43:12,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 23:43:12,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:12,608 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-07 23:43:12,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-07 23:43:12,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209862585] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:12,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:12,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-07 23:43:12,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772654634] [2024-11-07 23:43:12,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:12,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:43:12,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:12,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:43:12,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:43:12,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 63 [2024-11-07 23:43:12,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 141 transitions, 935 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 23:43:12,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:12,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 63 [2024-11-07 23:43:12,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:13,632 INFO L124 PetriNetUnfolderBase]: 11015/18916 cut-off events. [2024-11-07 23:43:13,633 INFO L125 PetriNetUnfolderBase]: For 29310/29501 co-relation queries the response was YES. [2024-11-07 23:43:13,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57472 conditions, 18916 events. 11015/18916 cut-off events. For 29310/29501 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 135003 event pairs, 3161 based on Foata normal form. 298/18249 useless extension candidates. Maximal degree in co-relation 57384. Up to 8714 conditions per place. [2024-11-07 23:43:13,783 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 121 selfloop transitions, 7 changer transitions 30/176 dead transitions. [2024-11-07 23:43:13,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 176 transitions, 1410 flow [2024-11-07 23:43:13,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:43:13,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:43:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-11-07 23:43:13,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.626984126984127 [2024-11-07 23:43:13,784 INFO L175 Difference]: Start difference. First operand has 142 places, 141 transitions, 935 flow. Second operand 4 states and 158 transitions. [2024-11-07 23:43:13,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 176 transitions, 1410 flow [2024-11-07 23:43:13,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 176 transitions, 1303 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-07 23:43:13,847 INFO L231 Difference]: Finished difference. Result has 133 places, 120 transitions, 729 flow [2024-11-07 23:43:13,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=729, PETRI_PLACES=133, PETRI_TRANSITIONS=120} [2024-11-07 23:43:13,847 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 72 predicate places. [2024-11-07 23:43:13,847 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 120 transitions, 729 flow [2024-11-07 23:43:13,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 23:43:13,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:13,847 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:13,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 23:43:14,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:14,048 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:14,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:14,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1373870212, now seen corresponding path program 2 times [2024-11-07 23:43:14,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:14,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126236082] [2024-11-07 23:43:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:14,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-07 23:43:14,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:14,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126236082] [2024-11-07 23:43:14,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126236082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:14,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415159922] [2024-11-07 23:43:14,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:43:14,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:14,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:14,217 INFO L229 MonitoredProcess]: Starting monitored process 14 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 23:43:14,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-07 23:43:14,312 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:43:14,312 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:43:14,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:43:14,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-07 23:43:14,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:14,418 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-07 23:43:14,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415159922] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:14,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:14,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 2, 2] total 9 [2024-11-07 23:43:14,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538269290] [2024-11-07 23:43:14,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:14,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 23:43:14,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:14,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 23:43:14,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 23:43:14,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 63 [2024-11-07 23:43:14,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 120 transitions, 729 flow. Second operand has 11 states, 11 states have (on average 24.09090909090909) internal successors, (265), 11 states have internal predecessors, (265), 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 23:43:14,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:14,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 63 [2024-11-07 23:43:14,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:15,736 INFO L124 PetriNetUnfolderBase]: 12111/19047 cut-off events. [2024-11-07 23:43:15,736 INFO L125 PetriNetUnfolderBase]: For 55067/55654 co-relation queries the response was YES. [2024-11-07 23:43:15,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61781 conditions, 19047 events. 12111/19047 cut-off events. For 55067/55654 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 130454 event pairs, 5278 based on Foata normal form. 292/17993 useless extension candidates. Maximal degree in co-relation 61699. Up to 5287 conditions per place. [2024-11-07 23:43:15,908 INFO L140 encePairwiseOnDemand]: 50/63 looper letters, 122 selfloop transitions, 55 changer transitions 8/204 dead transitions. [2024-11-07 23:43:15,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 204 transitions, 1546 flow [2024-11-07 23:43:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 23:43:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 23:43:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 445 transitions. [2024-11-07 23:43:15,909 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44146825396825395 [2024-11-07 23:43:15,909 INFO L175 Difference]: Start difference. First operand has 133 places, 120 transitions, 729 flow. Second operand 16 states and 445 transitions. [2024-11-07 23:43:15,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 204 transitions, 1546 flow [2024-11-07 23:43:15,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 204 transitions, 1410 flow, removed 3 selfloop flow, removed 9 redundant places. [2024-11-07 23:43:15,974 INFO L231 Difference]: Finished difference. Result has 127 places, 127 transitions, 765 flow [2024-11-07 23:43:15,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=765, PETRI_PLACES=127, PETRI_TRANSITIONS=127} [2024-11-07 23:43:15,975 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 66 predicate places. [2024-11-07 23:43:15,975 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 127 transitions, 765 flow [2024-11-07 23:43:15,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.09090909090909) internal successors, (265), 11 states have internal predecessors, (265), 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 23:43:15,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:15,975 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:15,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-07 23:43:16,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:16,176 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:16,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:16,176 INFO L85 PathProgramCache]: Analyzing trace with hash -993462637, now seen corresponding path program 1 times [2024-11-07 23:43:16,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:16,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262062631] [2024-11-07 23:43:16,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:16,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:16,265 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 23:43:16,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:16,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262062631] [2024-11-07 23:43:16,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262062631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:16,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115886877] [2024-11-07 23:43:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:16,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:16,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:16,269 INFO L229 MonitoredProcess]: Starting monitored process 15 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 23:43:16,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-07 23:43:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:16,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:43:16,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:16,414 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 23:43:16,414 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 23:43:16,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115886877] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:16,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:16,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:43:16,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424497041] [2024-11-07 23:43:16,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:16,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:43:16,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:16,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:43:16,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:43:16,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 63 [2024-11-07 23:43:16,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 127 transitions, 765 flow. Second operand has 12 states, 12 states have (on average 28.75) internal successors, (345), 12 states have internal predecessors, (345), 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 23:43:16,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:16,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 63 [2024-11-07 23:43:16,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:20,008 INFO L124 PetriNetUnfolderBase]: 29255/50266 cut-off events. [2024-11-07 23:43:20,008 INFO L125 PetriNetUnfolderBase]: For 107342/108322 co-relation queries the response was YES. [2024-11-07 23:43:20,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144764 conditions, 50266 events. 29255/50266 cut-off events. For 107342/108322 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 411233 event pairs, 6160 based on Foata normal form. 1524/49344 useless extension candidates. Maximal degree in co-relation 144696. Up to 11996 conditions per place. [2024-11-07 23:43:20,341 INFO L140 encePairwiseOnDemand]: 59/63 looper letters, 432 selfloop transitions, 9 changer transitions 0/457 dead transitions. [2024-11-07 23:43:20,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 457 transitions, 3629 flow [2024-11-07 23:43:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:43:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:43:20,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 394 transitions. [2024-11-07 23:43:20,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6253968253968254 [2024-11-07 23:43:20,343 INFO L175 Difference]: Start difference. First operand has 127 places, 127 transitions, 765 flow. Second operand 10 states and 394 transitions. [2024-11-07 23:43:20,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 457 transitions, 3629 flow [2024-11-07 23:43:20,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 457 transitions, 3570 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-07 23:43:20,401 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 770 flow [2024-11-07 23:43:20,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=770, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2024-11-07 23:43:20,401 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 64 predicate places. [2024-11-07 23:43:20,401 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 770 flow [2024-11-07 23:43:20,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 28.75) internal successors, (345), 12 states have internal predecessors, (345), 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 23:43:20,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:43:20,402 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:20,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-07 23:43:20,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-07 23:43:20,602 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:43:20,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:43:20,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1772001872, now seen corresponding path program 2 times [2024-11-07 23:43:20,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:43:20,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853531903] [2024-11-07 23:43:20,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:43:20,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:43:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:43:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-07 23:43:20,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:43:20,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853531903] [2024-11-07 23:43:20,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853531903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:43:20,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127010017] [2024-11-07 23:43:20,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:43:20,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:20,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:43:20,808 INFO L229 MonitoredProcess]: Starting monitored process 16 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 23:43:20,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-07 23:43:20,915 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:43:20,915 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:43:20,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:43:20,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:43:21,026 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-07 23:43:21,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:43:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-07 23:43:21,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127010017] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:43:21,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:43:21,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-07 23:43:21,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447604483] [2024-11-07 23:43:21,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:43:21,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 23:43:21,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:43:21,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 23:43:21,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-07 23:43:21,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 63 [2024-11-07 23:43:21,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 770 flow. Second operand has 13 states, 13 states have (on average 22.846153846153847) internal successors, (297), 13 states have internal predecessors, (297), 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 23:43:21,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:43:21,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 63 [2024-11-07 23:43:21,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:43:26,256 INFO L124 PetriNetUnfolderBase]: 35779/60870 cut-off events. [2024-11-07 23:43:26,256 INFO L125 PetriNetUnfolderBase]: For 146575/147778 co-relation queries the response was YES. [2024-11-07 23:43:26,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182699 conditions, 60870 events. 35779/60870 cut-off events. For 146575/147778 co-relation queries the response was YES. Maximal size of possible extension queue 895. Compared 502748 event pairs, 3275 based on Foata normal form. 508/58724 useless extension candidates. Maximal degree in co-relation 182629. Up to 12181 conditions per place. [2024-11-07 23:43:26,553 INFO L140 encePairwiseOnDemand]: 48/63 looper letters, 0 selfloop transitions, 0 changer transitions 384/384 dead transitions. [2024-11-07 23:43:26,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 384 transitions, 2946 flow [2024-11-07 23:43:26,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 23:43:26,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 23:43:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 567 transitions. [2024-11-07 23:43:26,555 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-07 23:43:26,555 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 770 flow. Second operand 21 states and 567 transitions. [2024-11-07 23:43:26,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 384 transitions, 2946 flow [2024-11-07 23:43:27,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 384 transitions, 2906 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-07 23:43:27,117 INFO L231 Difference]: Finished difference. Result has 138 places, 0 transitions, 0 flow [2024-11-07 23:43:27,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=0, PETRI_PLACES=138, PETRI_TRANSITIONS=0} [2024-11-07 23:43:27,118 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 77 predicate places. [2024-11-07 23:43:27,118 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 0 transitions, 0 flow [2024-11-07 23:43:27,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 22.846153846153847) internal successors, (297), 13 states have internal predecessors, (297), 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 23:43:27,120 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-11-07 23:43:27,120 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2024-11-07 23:43:27,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 25 remaining) [2024-11-07 23:43:27,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-07 23:43:27,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-07 23:43:27,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-07 23:43:27,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-07 23:43:27,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-07 23:43:27,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-07 23:43:27,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-07 23:43:27,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-07 23:43:27,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-07 23:43:27,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:43:27,325 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:43:27,329 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:43:27,329 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:43:27,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:43:27 BasicIcfg [2024-11-07 23:43:27,334 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:43:27,335 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:43:27,335 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:43:27,335 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:43:27,336 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:42:47" (3/4) ... [2024-11-07 23:43:27,337 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:43:27,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 23:43:27,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 23:43:27,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-07 23:43:27,351 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 146 nodes and edges [2024-11-07 23:43:27,354 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-11-07 23:43:27,354 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-07 23:43:27,355 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 23:43:27,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:43:27,440 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:43:27,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:43:27,442 INFO L158 Benchmark]: Toolchain (without parser) took 41312.65ms. Allocated memory was 117.4MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 92.0MB in the beginning and 5.7GB in the end (delta: -5.6GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-07 23:43:27,442 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:43:27,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.05ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 79.9MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:43:27,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.89ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:43:27,443 INFO L158 Benchmark]: Boogie Preprocessor took 54.27ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:43:27,443 INFO L158 Benchmark]: RCFGBuilder took 867.54ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 68.4MB in the end (delta: 7.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-07 23:43:27,443 INFO L158 Benchmark]: TraceAbstraction took 39992.47ms. Allocated memory was 117.4MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 67.9MB in the beginning and 5.7GB in the end (delta: -5.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-07 23:43:27,444 INFO L158 Benchmark]: Witness Printer took 104.82ms. Allocated memory is still 6.9GB. Free memory was 5.7GB in the beginning and 5.7GB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:43:27,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.05ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 79.9MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.89ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.27ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 867.54ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 68.4MB in the end (delta: 7.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * TraceAbstraction took 39992.47ms. Allocated memory was 117.4MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 67.9MB in the beginning and 5.7GB in the end (delta: -5.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 104.82ms. Allocated memory is still 6.9GB. Free memory was 5.7GB in the beginning and 5.7GB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: 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 7 procedures, 90 locations, 25 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: 39.9s, OverallIterations: 23, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 30.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2470 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2305 mSDsluCounter, 2053 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2021 mSDsCounter, 524 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9544 IncrementalHoareTripleChecker+Invalid, 10068 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 524 mSolverCounterUnsat, 32 mSDtfsCounter, 9544 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 972 GetRequests, 673 SyntacticMatches, 9 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1181occurred in iteration=11, InterpolantAutomatonStates: 220, 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: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 930 NumberOfCodeBlocks, 793 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1242 ConstructedInterpolants, 0 QuantifiedInterpolants, 3308 SizeOfPredicates, 47 NumberOfNonLiveVariables, 2462 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 50 InterpolantComputations, 11 PerfectInterpolantSequences, 800/1088 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 23:43:27,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE