./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
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/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'd79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98']
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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 19:36:24,992 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 19:36:25,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-07 19:36:25,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 19:36:25,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 19:36:25,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 19:36:25,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 19:36:25,098 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 19:36:25,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 19:36:25,098 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 19:36:25,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 19:36:25,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 19:36:25,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 19:36:25,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 19:36:25,099 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 19:36:25,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 19:36:25,099 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 19:36:25,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 19:36:25,100 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 19:36:25,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 19:36:25,100 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-07 19:36:25,100 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-07 19:36:25,100 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-07 19:36:25,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 19:36:25,101 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-07 19:36:25,101 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 19:36:25,101 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 19:36:25,101 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 19:36:25,101 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 19:36:25,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 19:36:25,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 19:36:25,101 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 19:36:25,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 19:36:25,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 19:36:25,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 19:36:25,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 19:36:25,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 19:36:25,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 19:36:25,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 19:36:25,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 19:36:25,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 19:36:25,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 19:36:25,102 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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98
[2024-11-07 19:36:25,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 19:36:25,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 19:36:25,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 19:36:25,412 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 19:36:25,412 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 19:36:25,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c
[2024-11-07 19:36:26,704 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 19:36:26,953 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 19:36:26,954 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c
[2024-11-07 19:36:26,960 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/763159268/1e7993b379624cff8c72964df64272f4/FLAG009dd927f
[2024-11-07 19:36:26,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/763159268/1e7993b379624cff8c72964df64272f4
[2024-11-07 19:36:26,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 19:36:26,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 19:36:26,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 19:36:26,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 19:36:26,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 19:36:26,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:36:26" (1/1) ...
[2024-11-07 19:36:26,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6870e74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:26, skipping insertion in model container
[2024-11-07 19:36:26,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:36:26" (1/1) ...
[2024-11-07 19:36:26,997 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 19:36:27,179 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-07 19:36:27,185 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 19:36:27,197 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 19:36:27,231 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 19:36:27,247 INFO L204 MainTranslator]: Completed translation
[2024-11-07 19:36:27,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27 WrapperNode
[2024-11-07 19:36:27,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 19:36:27,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 19:36:27,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 19:36:27,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 19:36:27,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,290 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 173
[2024-11-07 19:36:27,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 19:36:27,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 19:36:27,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 19:36:27,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 19:36:27,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,330 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1].
[2024-11-07 19:36:27,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,334 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 19:36:27,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 19:36:27,364 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 19:36:27,364 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 19:36:27,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (1/1) ...
[2024-11-07 19:36:27,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 19:36:27,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:36:27,403 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 19:36:27,408 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 19:36:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 19:36:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-07 19:36:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-07 19:36:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-07 19:36:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-07 19:36:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2024-11-07 19:36:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2024-11-07 19:36:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 19:36:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 19:36:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-07 19:36:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-07 19:36:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-07 19:36:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-07 19:36:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-07 19:36:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 19:36:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 19:36:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-07 19:36:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-07 19:36:27,437 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 19:36:27,560 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 19:36:27,564 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 19:36:27,939 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 19:36:27,939 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 19:36:28,222 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 19:36:28,222 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-07 19:36:28,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:36:28 BoogieIcfgContainer
[2024-11-07 19:36:28,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 19:36:28,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 19:36:28,226 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 19:36:28,230 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 19:36:28,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:36:26" (1/3) ...
[2024-11-07 19:36:28,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b7b9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:36:28, skipping insertion in model container
[2024-11-07 19:36:28,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:36:27" (2/3) ...
[2024-11-07 19:36:28,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b7b9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:36:28, skipping insertion in model container
[2024-11-07 19:36:28,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:36:28" (3/3) ...
[2024-11-07 19:36:28,234 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c
[2024-11-07 19:36:28,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 19:36:28,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations.
[2024-11-07 19:36:28,247 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 19:36:28,320 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-11-07 19:36:28,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 49 transitions, 119 flow
[2024-11-07 19:36:28,389 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events.
[2024-11-07 19:36:28,391 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2024-11-07 19:36:28,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 3/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place.
[2024-11-07 19:36:28,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 49 transitions, 119 flow
[2024-11-07 19:36:28,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 45 transitions, 108 flow
[2024-11-07 19:36:28,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 19:36:28,425 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=None, 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;@11b8e55d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 19:36:28,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations.
[2024-11-07 19:36:28,429 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 19:36:28,429 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events.
[2024-11-07 19:36:28,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 19:36:28,430 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:28,430 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-07 19:36:28,431 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:28,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:28,436 INFO L85 PathProgramCache]: Analyzing trace with hash 530533, now seen corresponding path program 1 times
[2024-11-07 19:36:28,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:28,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150685452]
[2024-11-07 19:36:28,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:28,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:28,665 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 19:36:28,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:28,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150685452]
[2024-11-07 19:36:28,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150685452] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:28,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:36:28,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-07 19:36:28,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144932459]
[2024-11-07 19:36:28,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:28,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 19:36:28,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:28,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 19:36:28,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 19:36:28,738 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49
[2024-11-07 19:36:28,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 19:36:28,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:28,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49
[2024-11-07 19:36:28,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:29,138 INFO L124 PetriNetUnfolderBase]: 886/1463 cut-off events.
[2024-11-07 19:36:29,139 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES.
[2024-11-07 19:36:29,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 1463 events. 886/1463 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7560 event pairs, 768 based on Foata normal form. 1/1087 useless extension candidates. Maximal degree in co-relation 2758. Up to 1319 conditions per place.
[2024-11-07 19:36:29,156 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 28 selfloop transitions, 2 changer transitions 0/42 dead transitions.
[2024-11-07 19:36:29,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 162 flow
[2024-11-07 19:36:29,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 19:36:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 19:36:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions.
[2024-11-07 19:36:29,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54421768707483
[2024-11-07 19:36:29,171 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 108 flow. Second operand 3 states and 80 transitions.
[2024-11-07 19:36:29,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 162 flow
[2024-11-07 19:36:29,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 150 flow, removed 0 selfloop flow, removed 6 redundant places.
[2024-11-07 19:36:29,187 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 94 flow
[2024-11-07 19:36:29,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=45, PETRI_TRANSITIONS=42}
[2024-11-07 19:36:29,196 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -7 predicate places.
[2024-11-07 19:36:29,197 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 94 flow
[2024-11-07 19:36:29,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 19:36:29,197 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:29,198 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-07 19:36:29,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 19:36:29,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:29,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash 530534, now seen corresponding path program 1 times
[2024-11-07 19:36:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109396083]
[2024-11-07 19:36:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:29,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:29,560 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 19:36:29,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:29,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109396083]
[2024-11-07 19:36:29,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109396083] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:29,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:36:29,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 19:36:29,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989744017]
[2024-11-07 19:36:29,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:29,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 19:36:29,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 19:36:29,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 19:36:29,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49
[2024-11-07 19:36:29,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 19:36:29,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:29,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49
[2024-11-07 19:36:29,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:29,886 INFO L124 PetriNetUnfolderBase]: 887/1436 cut-off events.
[2024-11-07 19:36:29,886 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES.
[2024-11-07 19:36:29,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 1436 events. 887/1436 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 7237 event pairs, 768 based on Foata normal form. 0/1114 useless extension candidates. Maximal degree in co-relation 2802. Up to 1324 conditions per place.
[2024-11-07 19:36:29,899 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 30 selfloop transitions, 4 changer transitions 0/45 dead transitions.
[2024-11-07 19:36:29,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 170 flow
[2024-11-07 19:36:29,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 19:36:29,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 19:36:29,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions.
[2024-11-07 19:36:29,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5051020408163265
[2024-11-07 19:36:29,903 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 94 flow. Second operand 4 states and 99 transitions.
[2024-11-07 19:36:29,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 170 flow
[2024-11-07 19:36:29,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 45 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 19:36:29,906 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow
[2024-11-07 19:36:29,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45}
[2024-11-07 19:36:29,907 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -4 predicate places.
[2024-11-07 19:36:29,908 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow
[2024-11-07 19:36:29,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 19:36:29,908 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:29,908 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1]
[2024-11-07 19:36:29,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 19:36:29,908 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:29,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:29,909 INFO L85 PathProgramCache]: Analyzing trace with hash 509859573, now seen corresponding path program 1 times
[2024-11-07 19:36:29,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:29,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287512339]
[2024-11-07 19:36:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:29,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:30,297 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 19:36:30,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:30,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287512339]
[2024-11-07 19:36:30,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287512339] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:36:30,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671292431]
[2024-11-07 19:36:30,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:30,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:30,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:36:30,302 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 19:36:30,304 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 19:36:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:30,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-07 19:36:30,385 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:36:30,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2024-11-07 19:36:30,639 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 19:36:30,640 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:36:30,751 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 19:36:30,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671292431] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:36:30,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:36:30,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9
[2024-11-07 19:36:30,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563107586]
[2024-11-07 19:36:30,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:36:30,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-07 19:36:30,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:30,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-07 19:36:30,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2024-11-07 19:36:30,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49
[2024-11-07 19:36:30,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 11 states, 11 states have (on average 17.363636363636363) internal successors, (191), 11 states have internal predecessors, (191), 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 19:36:30,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:30,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49
[2024-11-07 19:36:30,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:31,273 INFO L124 PetriNetUnfolderBase]: 888/1438 cut-off events.
[2024-11-07 19:36:31,274 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES.
[2024-11-07 19:36:31,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 1438 events. 888/1438 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 7225 event pairs, 768 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 2809. Up to 1321 conditions per place.
[2024-11-07 19:36:31,286 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 26 selfloop transitions, 10 changer transitions 0/47 dead transitions.
[2024-11-07 19:36:31,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 197 flow
[2024-11-07 19:36:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-07 19:36:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-11-07 19:36:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions.
[2024-11-07 19:36:31,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42346938775510207
[2024-11-07 19:36:31,289 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 8 states and 166 transitions.
[2024-11-07 19:36:31,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 197 flow
[2024-11-07 19:36:31,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 47 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 19:36:31,290 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 142 flow
[2024-11-07 19:36:31,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=142, PETRI_PLACES=53, PETRI_TRANSITIONS=47}
[2024-11-07 19:36:31,291 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places.
[2024-11-07 19:36:31,293 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 142 flow
[2024-11-07 19:36:31,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.363636363636363) internal successors, (191), 11 states have internal predecessors, (191), 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 19:36:31,294 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:31,294 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:31,313 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 19:36:31,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:31,499 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:31,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1371248172, now seen corresponding path program 1 times
[2024-11-07 19:36:31,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:31,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740138411]
[2024-11-07 19:36:31,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:31,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:31,605 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 19:36:31,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:31,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740138411]
[2024-11-07 19:36:31,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740138411] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:31,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:36:31,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 19:36:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623968660]
[2024-11-07 19:36:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:31,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 19:36:31,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:31,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 19:36:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 19:36:31,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49
[2024-11-07 19:36:31,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 19:36:31,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:31,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49
[2024-11-07 19:36:31,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:31,879 INFO L124 PetriNetUnfolderBase]: 957/1570 cut-off events.
[2024-11-07 19:36:31,879 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES.
[2024-11-07 19:36:31,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3105 conditions, 1570 events. 957/1570 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 7786 event pairs, 812 based on Foata normal form. 41/1295 useless extension candidates. Maximal degree in co-relation 2810. Up to 1325 conditions per place.
[2024-11-07 19:36:31,894 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 33 selfloop transitions, 2 changer transitions 13/59 dead transitions.
[2024-11-07 19:36:31,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 59 transitions, 265 flow
[2024-11-07 19:36:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 19:36:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 19:36:31,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions.
[2024-11-07 19:36:31,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6122448979591837
[2024-11-07 19:36:31,897 INFO L175 Difference]: Start difference. First operand has 53 places, 47 transitions, 142 flow. Second operand 4 states and 120 transitions.
[2024-11-07 19:36:31,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 59 transitions, 265 flow
[2024-11-07 19:36:31,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 223 flow, removed 6 selfloop flow, removed 7 redundant places.
[2024-11-07 19:36:31,904 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 116 flow
[2024-11-07 19:36:31,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=50, PETRI_TRANSITIONS=46}
[2024-11-07 19:36:31,906 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places.
[2024-11-07 19:36:31,907 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 116 flow
[2024-11-07 19:36:31,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 19:36:31,909 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:31,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:31,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 19:36:31,910 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:31,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:31,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2069304091, now seen corresponding path program 1 times
[2024-11-07 19:36:31,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:31,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44322273]
[2024-11-07 19:36:31,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:31,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:32,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:32,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44322273]
[2024-11-07 19:36:32,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44322273] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:32,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:36:32,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 19:36:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143047387]
[2024-11-07 19:36:32,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:32,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:36:32,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:36:32,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:36:32,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49
[2024-11-07 19:36:32,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:36:32,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:32,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49
[2024-11-07 19:36:32,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:32,340 INFO L124 PetriNetUnfolderBase]: 659/1084 cut-off events.
[2024-11-07 19:36:32,340 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES.
[2024-11-07 19:36:32,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2403 conditions, 1084 events. 659/1084 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5172 event pairs, 556 based on Foata normal form. 0/906 useless extension candidates. Maximal degree in co-relation 2391. Up to 982 conditions per place.
[2024-11-07 19:36:32,352 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 30 selfloop transitions, 3 changer transitions 0/44 dead transitions.
[2024-11-07 19:36:32,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 44 transitions, 174 flow
[2024-11-07 19:36:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 19:36:32,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 19:36:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions.
[2024-11-07 19:36:32,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-11-07 19:36:32,356 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 116 flow. Second operand 4 states and 98 transitions.
[2024-11-07 19:36:32,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 44 transitions, 174 flow
[2024-11-07 19:36:32,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 19:36:32,358 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 110 flow
[2024-11-07 19:36:32,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=48, PETRI_TRANSITIONS=44}
[2024-11-07 19:36:32,361 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -4 predicate places.
[2024-11-07 19:36:32,361 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 110 flow
[2024-11-07 19:36:32,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:36:32,361 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:32,362 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:32,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 19:36:32,362 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:32,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:32,362 INFO L85 PathProgramCache]: Analyzing trace with hash -2069304092, now seen corresponding path program 1 times
[2024-11-07 19:36:32,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:32,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419354487]
[2024-11-07 19:36:32,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:32,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:32,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:32,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419354487]
[2024-11-07 19:36:32,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419354487] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:32,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:36:32,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 19:36:32,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717533876]
[2024-11-07 19:36:32,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:32,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 19:36:32,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:32,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 19:36:32,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 19:36:32,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49
[2024-11-07 19:36:32,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 19:36:32,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:32,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49
[2024-11-07 19:36:32,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:32,604 INFO L124 PetriNetUnfolderBase]: 601/983 cut-off events.
[2024-11-07 19:36:32,604 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES.
[2024-11-07 19:36:32,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 983 events. 601/983 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4098 event pairs, 493 based on Foata normal form. 0/965 useless extension candidates. Maximal degree in co-relation 2052. Up to 887 conditions per place.
[2024-11-07 19:36:32,611 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 29 selfloop transitions, 3 changer transitions 0/40 dead transitions.
[2024-11-07 19:36:32,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 40 transitions, 162 flow
[2024-11-07 19:36:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 19:36:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 19:36:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions.
[2024-11-07 19:36:32,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42346938775510207
[2024-11-07 19:36:32,612 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 110 flow. Second operand 4 states and 83 transitions.
[2024-11-07 19:36:32,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 40 transitions, 162 flow
[2024-11-07 19:36:32,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 19:36:32,614 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 100 flow
[2024-11-07 19:36:32,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=45, PETRI_TRANSITIONS=40}
[2024-11-07 19:36:32,614 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -7 predicate places.
[2024-11-07 19:36:32,614 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 100 flow
[2024-11-07 19:36:32,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 19:36:32,615 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:32,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:32,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 19:36:32,615 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:32,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash 261910913, now seen corresponding path program 1 times
[2024-11-07 19:36:32,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:32,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113480715]
[2024-11-07 19:36:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:32,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 19:36:32,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:32,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113480715]
[2024-11-07 19:36:32,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113480715] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:32,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:36:32,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 19:36:32,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177117623]
[2024-11-07 19:36:32,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:32,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 19:36:32,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:32,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 19:36:32,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 19:36:32,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49
[2024-11-07 19:36:32,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 19:36:32,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:32,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49
[2024-11-07 19:36:32,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:32,768 INFO L124 PetriNetUnfolderBase]: 351/669 cut-off events.
[2024-11-07 19:36:32,769 INFO L125 PetriNetUnfolderBase]: For 88/93 co-relation queries the response was YES.
[2024-11-07 19:36:32,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 669 events. 351/669 cut-off events. For 88/93 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3080 event pairs, 118 based on Foata normal form. 15/636 useless extension candidates. Maximal degree in co-relation 1333. Up to 432 conditions per place.
[2024-11-07 19:36:32,774 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 41 selfloop transitions, 3 changer transitions 0/53 dead transitions.
[2024-11-07 19:36:32,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 53 transitions, 220 flow
[2024-11-07 19:36:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 19:36:32,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 19:36:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions.
[2024-11-07 19:36:32,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191
[2024-11-07 19:36:32,776 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 100 flow. Second operand 3 states and 91 transitions.
[2024-11-07 19:36:32,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 53 transitions, 220 flow
[2024-11-07 19:36:32,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 19:36:32,779 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 119 flow
[2024-11-07 19:36:32,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=46, PETRI_TRANSITIONS=42}
[2024-11-07 19:36:32,779 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -6 predicate places.
[2024-11-07 19:36:32,779 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 119 flow
[2024-11-07 19:36:32,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 19:36:32,780 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:32,780 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:32,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 19:36:32,780 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:32,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:32,782 INFO L85 PathProgramCache]: Analyzing trace with hash 125646988, now seen corresponding path program 1 times
[2024-11-07 19:36:32,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:32,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60230802]
[2024-11-07 19:36:32,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:32,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:33,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:33,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:33,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60230802]
[2024-11-07 19:36:33,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60230802] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:36:33,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005608391]
[2024-11-07 19:36:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:33,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:33,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:36:33,082 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 19:36:33,084 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 19:36:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:33,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 19:36:33,170 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:36:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:33,244 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:36:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:33,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005608391] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:36:33,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:36:33,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11
[2024-11-07 19:36:33,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702887402]
[2024-11-07 19:36:33,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:36:33,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-07 19:36:33,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:33,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-07 19:36:33,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2024-11-07 19:36:33,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49
[2024-11-07 19:36:33,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 119 flow. Second operand has 12 states, 12 states have (on average 17.666666666666668) internal successors, (212), 12 states have internal predecessors, (212), 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 19:36:33,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:33,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49
[2024-11-07 19:36:33,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:33,972 INFO L124 PetriNetUnfolderBase]: 620/1055 cut-off events.
[2024-11-07 19:36:33,972 INFO L125 PetriNetUnfolderBase]: For 383/391 co-relation queries the response was YES.
[2024-11-07 19:36:33,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1055 events. 620/1055 cut-off events. For 383/391 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4387 event pairs, 108 based on Foata normal form. 40/1078 useless extension candidates. Maximal degree in co-relation 1652. Up to 353 conditions per place.
[2024-11-07 19:36:33,978 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 48 selfloop transitions, 9 changer transitions 32/96 dead transitions.
[2024-11-07 19:36:33,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 96 transitions, 442 flow
[2024-11-07 19:36:33,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-07 19:36:33,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-11-07 19:36:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 256 transitions.
[2024-11-07 19:36:33,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4749536178107607
[2024-11-07 19:36:33,981 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 119 flow. Second operand 11 states and 256 transitions.
[2024-11-07 19:36:33,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 96 transitions, 442 flow
[2024-11-07 19:36:33,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 96 transitions, 415 flow, removed 11 selfloop flow, removed 2 redundant places.
[2024-11-07 19:36:33,986 INFO L231 Difference]: Finished difference. Result has 53 places, 40 transitions, 118 flow
[2024-11-07 19:36:33,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=118, PETRI_PLACES=53, PETRI_TRANSITIONS=40}
[2024-11-07 19:36:33,988 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places.
[2024-11-07 19:36:33,988 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 118 flow
[2024-11-07 19:36:33,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.666666666666668) internal successors, (212), 12 states have internal predecessors, (212), 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 19:36:33,989 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:33,989 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:34,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-07 19:36:34,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:34,191 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:34,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:34,191 INFO L85 PathProgramCache]: Analyzing trace with hash -74262782, now seen corresponding path program 1 times
[2024-11-07 19:36:34,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:34,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589064107]
[2024-11-07 19:36:34,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:34,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:34,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:36:34,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:34,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589064107]
[2024-11-07 19:36:34,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589064107] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:34,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:36:34,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 19:36:34,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888884714]
[2024-11-07 19:36:34,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:34,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 19:36:34,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:34,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 19:36:34,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 19:36:34,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49
[2024-11-07 19:36:34,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 19:36:34,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:34,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49
[2024-11-07 19:36:34,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:34,399 INFO L124 PetriNetUnfolderBase]: 224/412 cut-off events.
[2024-11-07 19:36:34,400 INFO L125 PetriNetUnfolderBase]: For 147/150 co-relation queries the response was YES.
[2024-11-07 19:36:34,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 412 events. 224/412 cut-off events. For 147/150 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1438 event pairs, 56 based on Foata normal form. 29/429 useless extension candidates. Maximal degree in co-relation 889. Up to 146 conditions per place.
[2024-11-07 19:36:34,402 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 44 selfloop transitions, 5 changer transitions 0/57 dead transitions.
[2024-11-07 19:36:34,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 254 flow
[2024-11-07 19:36:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 19:36:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 19:36:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions.
[2024-11-07 19:36:34,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5816326530612245
[2024-11-07 19:36:34,403 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 118 flow. Second operand 4 states and 114 transitions.
[2024-11-07 19:36:34,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 254 flow
[2024-11-07 19:36:34,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 240 flow, removed 0 selfloop flow, removed 6 redundant places.
[2024-11-07 19:36:34,405 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 120 flow
[2024-11-07 19:36:34,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=49, PETRI_TRANSITIONS=40}
[2024-11-07 19:36:34,406 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places.
[2024-11-07 19:36:34,406 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 120 flow
[2024-11-07 19:36:34,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 19:36:34,406 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:34,406 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:34,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-07 19:36:34,406 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:34,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:34,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1018514616, now seen corresponding path program 1 times
[2024-11-07 19:36:34,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:34,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693037242]
[2024-11-07 19:36:34,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:34,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:36:34,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:34,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693037242]
[2024-11-07 19:36:34,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693037242] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:34,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:36:34,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 19:36:34,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88042003]
[2024-11-07 19:36:34,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:34,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:36:34,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:34,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:36:34,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:36:34,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:36:34,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 19:36:34,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:34,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:36:34,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:34,677 INFO L124 PetriNetUnfolderBase]: 240/419 cut-off events.
[2024-11-07 19:36:34,677 INFO L125 PetriNetUnfolderBase]: For 209/214 co-relation queries the response was YES.
[2024-11-07 19:36:34,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 419 events. 240/419 cut-off events. For 209/214 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1381 event pairs, 54 based on Foata normal form. 4/411 useless extension candidates. Maximal degree in co-relation 994. Up to 195 conditions per place.
[2024-11-07 19:36:34,680 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 50 selfloop transitions, 4 changer transitions 0/60 dead transitions.
[2024-11-07 19:36:34,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 274 flow
[2024-11-07 19:36:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 19:36:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 19:36:34,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions.
[2024-11-07 19:36:34,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49387755102040815
[2024-11-07 19:36:34,682 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 120 flow. Second operand 5 states and 121 transitions.
[2024-11-07 19:36:34,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 274 flow
[2024-11-07 19:36:34,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 264 flow, removed 2 selfloop flow, removed 2 redundant places.
[2024-11-07 19:36:34,684 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 116 flow
[2024-11-07 19:36:34,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=50, PETRI_TRANSITIONS=39}
[2024-11-07 19:36:34,684 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places.
[2024-11-07 19:36:34,684 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 116 flow
[2024-11-07 19:36:34,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 19:36:34,685 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:34,685 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:34,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-07 19:36:34,685 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:34,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:34,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1670280078, now seen corresponding path program 1 times
[2024-11-07 19:36:34,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:34,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511571178]
[2024-11-07 19:36:34,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:34,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:36,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:36,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511571178]
[2024-11-07 19:36:36,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511571178] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:36:36,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372141630]
[2024-11-07 19:36:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:36,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:36,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:36:36,972 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 19:36:36,975 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 19:36:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:37,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 38 conjuncts are in the unsatisfiable core
[2024-11-07 19:36:37,083 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:36:37,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1
[2024-11-07 19:36:37,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-11-07 19:36:37,823 INFO L349 Elim1Store]: treesize reduction 34, result has 17.1 percent of original size
[2024-11-07 19:36:37,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 41
[2024-11-07 19:36:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:37,861 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:36:39,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 105
[2024-11-07 19:36:39,458 INFO L349 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size
[2024-11-07 19:36:39,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 582 treesize of output 542
[2024-11-07 19:36:42,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:42,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372141630] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:36:42,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:36:42,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35
[2024-11-07 19:36:42,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367085746]
[2024-11-07 19:36:42,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:36:42,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2024-11-07 19:36:42,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:42,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2024-11-07 19:36:42,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1085, Unknown=0, NotChecked=0, Total=1260
[2024-11-07 19:36:43,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:36:43,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 116 flow. Second operand has 36 states, 36 states have (on average 16.25) internal successors, (585), 36 states have internal predecessors, (585), 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 19:36:43,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:43,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:36:43,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:47,286 INFO L124 PetriNetUnfolderBase]: 1440/2522 cut-off events.
[2024-11-07 19:36:47,286 INFO L125 PetriNetUnfolderBase]: For 1422/1422 co-relation queries the response was YES.
[2024-11-07 19:36:47,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6126 conditions, 2522 events. 1440/2522 cut-off events. For 1422/1422 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 14115 event pairs, 417 based on Foata normal form. 1/2517 useless extension candidates. Maximal degree in co-relation 4778. Up to 521 conditions per place.
[2024-11-07 19:36:47,300 INFO L140 encePairwiseOnDemand]: 34/49 looper letters, 163 selfloop transitions, 42 changer transitions 30/239 dead transitions.
[2024-11-07 19:36:47,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 239 transitions, 1177 flow
[2024-11-07 19:36:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2024-11-07 19:36:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2024-11-07 19:36:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 582 transitions.
[2024-11-07 19:36:47,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4751020408163265
[2024-11-07 19:36:47,305 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 116 flow. Second operand 25 states and 582 transitions.
[2024-11-07 19:36:47,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 239 transitions, 1177 flow
[2024-11-07 19:36:47,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 239 transitions, 1110 flow, removed 9 selfloop flow, removed 4 redundant places.
[2024-11-07 19:36:47,310 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 440 flow
[2024-11-07 19:36:47,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=440, PETRI_PLACES=84, PETRI_TRANSITIONS=79}
[2024-11-07 19:36:47,311 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 32 predicate places.
[2024-11-07 19:36:47,311 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 440 flow
[2024-11-07 19:36:47,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 16.25) internal successors, (585), 36 states have internal predecessors, (585), 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 19:36:47,312 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:47,312 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:47,329 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 19:36:47,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:47,513 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:47,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:47,514 INFO L85 PathProgramCache]: Analyzing trace with hash 670908598, now seen corresponding path program 2 times
[2024-11-07 19:36:47,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:47,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182513513]
[2024-11-07 19:36:47,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:47,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:49,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:49,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182513513]
[2024-11-07 19:36:49,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182513513] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:36:49,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545046337]
[2024-11-07 19:36:49,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 19:36:49,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:49,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:36:49,305 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 19:36:49,306 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 19:36:49,386 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-07 19:36:49,386 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 19:36:49,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-07 19:36:49,390 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:36:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:36:49,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 19:36:49,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545046337] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:49,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 19:36:49,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 20
[2024-11-07 19:36:49,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066584760]
[2024-11-07 19:36:49,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:49,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-07 19:36:49,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:49,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-07 19:36:49,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2024-11-07 19:36:49,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:36:49,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 440 flow. Second operand has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 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 19:36:49,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:49,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:36:49,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:50,091 INFO L124 PetriNetUnfolderBase]: 1956/3387 cut-off events.
[2024-11-07 19:36:50,091 INFO L125 PetriNetUnfolderBase]: For 5174/5192 co-relation queries the response was YES.
[2024-11-07 19:36:50,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9906 conditions, 3387 events. 1956/3387 cut-off events. For 5174/5192 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 20145 event pairs, 469 based on Foata normal form. 20/3406 useless extension candidates. Maximal degree in co-relation 9869. Up to 1699 conditions per place.
[2024-11-07 19:36:50,117 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 104 selfloop transitions, 33 changer transitions 24/165 dead transitions.
[2024-11-07 19:36:50,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 165 transitions, 1135 flow
[2024-11-07 19:36:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-07 19:36:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-11-07 19:36:50,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 226 transitions.
[2024-11-07 19:36:50,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5124716553287982
[2024-11-07 19:36:50,120 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 440 flow. Second operand 9 states and 226 transitions.
[2024-11-07 19:36:50,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 165 transitions, 1135 flow
[2024-11-07 19:36:50,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 165 transitions, 1113 flow, removed 7 selfloop flow, removed 8 redundant places.
[2024-11-07 19:36:50,139 INFO L231 Difference]: Finished difference. Result has 87 places, 103 transitions, 758 flow
[2024-11-07 19:36:50,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=758, PETRI_PLACES=87, PETRI_TRANSITIONS=103}
[2024-11-07 19:36:50,140 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 35 predicate places.
[2024-11-07 19:36:50,140 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 103 transitions, 758 flow
[2024-11-07 19:36:50,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 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 19:36:50,140 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:50,140 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:50,157 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 19:36:50,344 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,SelfDestructingSolverStorable11
[2024-11-07 19:36:50,344 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:50,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:50,345 INFO L85 PathProgramCache]: Analyzing trace with hash 364972806, now seen corresponding path program 3 times
[2024-11-07 19:36:50,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:50,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047439915]
[2024-11-07 19:36:50,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:50,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:52,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:52,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047439915]
[2024-11-07 19:36:52,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047439915] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:36:52,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182114762]
[2024-11-07 19:36:52,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-07 19:36:52,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:52,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:36:52,147 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 19:36:52,149 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 19:36:52,217 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2024-11-07 19:36:52,217 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 19:36:52,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-07 19:36:52,219 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:36:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:36:52,422 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 19:36:52,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182114762] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:36:52,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 19:36:52,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 21
[2024-11-07 19:36:52,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864159890]
[2024-11-07 19:36:52,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:36:52,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-07 19:36:52,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:52,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-07 19:36:52,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462
[2024-11-07 19:36:52,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:36:52,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 103 transitions, 758 flow. Second operand has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 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 19:36:52,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:52,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:36:52,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:52,874 INFO L124 PetriNetUnfolderBase]: 2093/3610 cut-off events.
[2024-11-07 19:36:52,874 INFO L125 PetriNetUnfolderBase]: For 8593/8598 co-relation queries the response was YES.
[2024-11-07 19:36:52,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11740 conditions, 3610 events. 2093/3610 cut-off events. For 8593/8598 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 21831 event pairs, 528 based on Foata normal form. 6/3612 useless extension candidates. Maximal degree in co-relation 11703. Up to 1690 conditions per place.
[2024-11-07 19:36:52,935 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 105 selfloop transitions, 38 changer transitions 24/171 dead transitions.
[2024-11-07 19:36:52,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 171 transitions, 1393 flow
[2024-11-07 19:36:52,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-07 19:36:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-11-07 19:36:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 225 transitions.
[2024-11-07 19:36:52,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531
[2024-11-07 19:36:52,939 INFO L175 Difference]: Start difference. First operand has 87 places, 103 transitions, 758 flow. Second operand 9 states and 225 transitions.
[2024-11-07 19:36:52,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 171 transitions, 1393 flow
[2024-11-07 19:36:52,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 171 transitions, 1347 flow, removed 23 selfloop flow, removed 3 redundant places.
[2024-11-07 19:36:52,958 INFO L231 Difference]: Finished difference. Result has 96 places, 111 transitions, 959 flow
[2024-11-07 19:36:52,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=959, PETRI_PLACES=96, PETRI_TRANSITIONS=111}
[2024-11-07 19:36:52,959 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 44 predicate places.
[2024-11-07 19:36:52,959 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 111 transitions, 959 flow
[2024-11-07 19:36:52,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 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 19:36:52,959 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:52,959 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:52,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-07 19:36:53,159 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,SelfDestructingSolverStorable12
[2024-11-07 19:36:53,159 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:53,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:53,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1856225148, now seen corresponding path program 4 times
[2024-11-07 19:36:53,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:53,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573549445]
[2024-11-07 19:36:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:53,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:54,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:54,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573549445]
[2024-11-07 19:36:54,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573549445] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:36:54,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70818439]
[2024-11-07 19:36:54,233 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-07 19:36:54,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:54,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:36:54,235 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 19:36:54,236 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 19:36:54,324 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-07 19:36:54,324 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 19:36:54,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-07 19:36:54,327 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:36:54,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:54,739 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:36:54,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-07 19:36:54,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 60
[2024-11-07 19:36:55,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:55,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70818439] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:36:55,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:36:55,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34
[2024-11-07 19:36:55,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647596524]
[2024-11-07 19:36:55,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:36:55,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2024-11-07 19:36:55,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:36:55,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2024-11-07 19:36:55,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1047, Unknown=0, NotChecked=0, Total=1190
[2024-11-07 19:36:56,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:36:56,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 111 transitions, 959 flow. Second operand has 35 states, 35 states have (on average 16.314285714285713) internal successors, (571), 35 states have internal predecessors, (571), 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 19:36:56,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:36:56,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:36:56,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:36:58,354 INFO L124 PetriNetUnfolderBase]: 2451/4298 cut-off events.
[2024-11-07 19:36:58,355 INFO L125 PetriNetUnfolderBase]: For 11406/11440 co-relation queries the response was YES.
[2024-11-07 19:36:58,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14340 conditions, 4298 events. 2451/4298 cut-off events. For 11406/11440 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 27109 event pairs, 444 based on Foata normal form. 36/4333 useless extension candidates. Maximal degree in co-relation 14286. Up to 884 conditions per place.
[2024-11-07 19:36:58,388 INFO L140 encePairwiseOnDemand]: 34/49 looper letters, 169 selfloop transitions, 69 changer transitions 56/298 dead transitions.
[2024-11-07 19:36:58,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 298 transitions, 2187 flow
[2024-11-07 19:36:58,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states.
[2024-11-07 19:36:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states.
[2024-11-07 19:36:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 660 transitions.
[2024-11-07 19:36:58,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4644616467276566
[2024-11-07 19:36:58,392 INFO L175 Difference]: Start difference. First operand has 96 places, 111 transitions, 959 flow. Second operand 29 states and 660 transitions.
[2024-11-07 19:36:58,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 298 transitions, 2187 flow
[2024-11-07 19:36:58,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 298 transitions, 2115 flow, removed 26 selfloop flow, removed 4 redundant places.
[2024-11-07 19:36:58,433 INFO L231 Difference]: Finished difference. Result has 127 places, 122 transitions, 1185 flow
[2024-11-07 19:36:58,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=1185, PETRI_PLACES=127, PETRI_TRANSITIONS=122}
[2024-11-07 19:36:58,434 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 75 predicate places.
[2024-11-07 19:36:58,434 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 122 transitions, 1185 flow
[2024-11-07 19:36:58,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 16.314285714285713) internal successors, (571), 35 states have internal predecessors, (571), 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 19:36:58,434 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:36:58,434 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:36:58,452 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 19:36:58,638 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,SelfDestructingSolverStorable13
[2024-11-07 19:36:58,639 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:36:58,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:36:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1288202274, now seen corresponding path program 5 times
[2024-11-07 19:36:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:36:58,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063534710]
[2024-11-07 19:36:58,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:36:58,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:36:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:36:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:36:59,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:36:59,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063534710]
[2024-11-07 19:36:59,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063534710] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:36:59,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133679068]
[2024-11-07 19:36:59,713 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-07 19:36:59,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:36:59,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:36:59,716 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 19:36:59,717 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 19:36:59,815 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2024-11-07 19:36:59,815 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 19:36:59,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 43 conjuncts are in the unsatisfiable core
[2024-11-07 19:36:59,820 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:36:59,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-07 19:36:59,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-07 19:37:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:00,237 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:37:01,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 106
[2024-11-07 19:37:01,131 INFO L349 Elim1Store]: treesize reduction 13, result has 64.9 percent of original size
[2024-11-07 19:37:01,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 505 treesize of output 457
[2024-11-07 19:37:01,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:01,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133679068] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:37:01,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:37:01,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35
[2024-11-07 19:37:01,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081356062]
[2024-11-07 19:37:01,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:37:01,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2024-11-07 19:37:01,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:01,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2024-11-07 19:37:01,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1074, Unknown=0, NotChecked=0, Total=1260
[2024-11-07 19:37:02,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:37:02,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 122 transitions, 1185 flow. Second operand has 36 states, 36 states have (on average 16.25) internal successors, (585), 36 states have internal predecessors, (585), 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 19:37:02,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:02,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:37:02,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:05,058 INFO L124 PetriNetUnfolderBase]: 3594/6224 cut-off events.
[2024-11-07 19:37:05,058 INFO L125 PetriNetUnfolderBase]: For 26034/26076 co-relation queries the response was YES.
[2024-11-07 19:37:05,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22683 conditions, 6224 events. 3594/6224 cut-off events. For 26034/26076 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 40770 event pairs, 1019 based on Foata normal form. 36/6259 useless extension candidates. Maximal degree in co-relation 22595. Up to 1341 conditions per place.
[2024-11-07 19:37:05,096 INFO L140 encePairwiseOnDemand]: 34/49 looper letters, 221 selfloop transitions, 84 changer transitions 56/365 dead transitions.
[2024-11-07 19:37:05,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 365 transitions, 3197 flow
[2024-11-07 19:37:05,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2024-11-07 19:37:05,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2024-11-07 19:37:05,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 725 transitions.
[2024-11-07 19:37:05,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46237244897959184
[2024-11-07 19:37:05,100 INFO L175 Difference]: Start difference. First operand has 127 places, 122 transitions, 1185 flow. Second operand 32 states and 725 transitions.
[2024-11-07 19:37:05,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 365 transitions, 3197 flow
[2024-11-07 19:37:05,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 365 transitions, 2972 flow, removed 69 selfloop flow, removed 15 redundant places.
[2024-11-07 19:37:05,211 INFO L231 Difference]: Finished difference. Result has 151 places, 158 transitions, 1794 flow
[2024-11-07 19:37:05,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1794, PETRI_PLACES=151, PETRI_TRANSITIONS=158}
[2024-11-07 19:37:05,212 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 99 predicate places.
[2024-11-07 19:37:05,212 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 158 transitions, 1794 flow
[2024-11-07 19:37:05,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 16.25) internal successors, (585), 36 states have internal predecessors, (585), 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 19:37:05,212 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:05,213 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:05,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-07 19:37:05,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:37:05,417 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:05,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:05,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1257645933, now seen corresponding path program 6 times
[2024-11-07 19:37:05,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:05,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725982002]
[2024-11-07 19:37:05,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:05,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:06,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:06,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725982002]
[2024-11-07 19:37:06,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725982002] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:37:06,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267016460]
[2024-11-07 19:37:06,911 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-07 19:37:06,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:37:06,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:37:06,913 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 19:37:06,916 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 19:37:07,016 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s)
[2024-11-07 19:37:07,016 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 19:37:07,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-07 19:37:07,019 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:37:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-07 19:37:07,240 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 19:37:07,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267016460] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:37:07,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 19:37:07,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 21
[2024-11-07 19:37:07,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121028180]
[2024-11-07 19:37:07,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:37:07,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-07 19:37:07,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:07,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-07 19:37:07,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462
[2024-11-07 19:37:07,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:37:07,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 158 transitions, 1794 flow. Second operand has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 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 19:37:07,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:07,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:37:07,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:07,985 INFO L124 PetriNetUnfolderBase]: 3624/6262 cut-off events.
[2024-11-07 19:37:07,986 INFO L125 PetriNetUnfolderBase]: For 30294/30299 co-relation queries the response was YES.
[2024-11-07 19:37:08,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23384 conditions, 6262 events. 3624/6262 cut-off events. For 30294/30299 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 40992 event pairs, 1254 based on Foata normal form. 5/6265 useless extension candidates. Maximal degree in co-relation 23289. Up to 3530 conditions per place.
[2024-11-07 19:37:08,015 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 133 selfloop transitions, 64 changer transitions 23/224 dead transitions.
[2024-11-07 19:37:08,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 224 transitions, 2538 flow
[2024-11-07 19:37:08,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-07 19:37:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-11-07 19:37:08,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 227 transitions.
[2024-11-07 19:37:08,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5147392290249433
[2024-11-07 19:37:08,016 INFO L175 Difference]: Start difference. First operand has 151 places, 158 transitions, 1794 flow. Second operand 9 states and 227 transitions.
[2024-11-07 19:37:08,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 224 transitions, 2538 flow
[2024-11-07 19:37:08,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 224 transitions, 2450 flow, removed 28 selfloop flow, removed 15 redundant places.
[2024-11-07 19:37:08,125 INFO L231 Difference]: Finished difference. Result has 142 places, 168 transitions, 2049 flow
[2024-11-07 19:37:08,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1718, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2049, PETRI_PLACES=142, PETRI_TRANSITIONS=168}
[2024-11-07 19:37:08,126 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 90 predicate places.
[2024-11-07 19:37:08,126 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 168 transitions, 2049 flow
[2024-11-07 19:37:08,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 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 19:37:08,126 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:08,126 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:08,143 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 19:37:08,327 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,SelfDestructingSolverStorable15
[2024-11-07 19:37:08,327 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:08,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:08,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1342176749, now seen corresponding path program 7 times
[2024-11-07 19:37:08,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:08,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272474226]
[2024-11-07 19:37:08,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:08,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:09,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:09,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272474226]
[2024-11-07 19:37:09,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272474226] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:37:09,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992909357]
[2024-11-07 19:37:09,784 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-07 19:37:09,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:37:09,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:37:09,786 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 19:37:09,787 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 19:37:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:09,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-07 19:37:09,868 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:37:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:37:10,093 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:37:10,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-07 19:37:10,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 60
[2024-11-07 19:37:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-07 19:37:10,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992909357] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:37:10,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-07 19:37:10,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14, 9] total 28
[2024-11-07 19:37:10,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993159964]
[2024-11-07 19:37:10,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:37:10,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-07 19:37:10,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:10,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-07 19:37:10,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812
[2024-11-07 19:37:10,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:37:10,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 168 transitions, 2049 flow. Second operand has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 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 19:37:10,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:10,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:37:10,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:11,255 INFO L124 PetriNetUnfolderBase]: 3671/6357 cut-off events.
[2024-11-07 19:37:11,255 INFO L125 PetriNetUnfolderBase]: For 34949/34949 co-relation queries the response was YES.
[2024-11-07 19:37:11,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24499 conditions, 6357 events. 3671/6357 cut-off events. For 34949/34949 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 41715 event pairs, 1047 based on Foata normal form. 1/6356 useless extension candidates. Maximal degree in co-relation 24416. Up to 2626 conditions per place.
[2024-11-07 19:37:11,286 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 125 selfloop transitions, 70 changer transitions 24/223 dead transitions.
[2024-11-07 19:37:11,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 223 transitions, 2691 flow
[2024-11-07 19:37:11,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-07 19:37:11,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-11-07 19:37:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 223 transitions.
[2024-11-07 19:37:11,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5056689342403629
[2024-11-07 19:37:11,287 INFO L175 Difference]: Start difference. First operand has 142 places, 168 transitions, 2049 flow. Second operand 9 states and 223 transitions.
[2024-11-07 19:37:11,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 223 transitions, 2691 flow
[2024-11-07 19:37:11,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 223 transitions, 2570 flow, removed 10 selfloop flow, removed 6 redundant places.
[2024-11-07 19:37:11,397 INFO L231 Difference]: Finished difference. Result has 145 places, 169 transitions, 2131 flow
[2024-11-07 19:37:11,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1934, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2131, PETRI_PLACES=145, PETRI_TRANSITIONS=169}
[2024-11-07 19:37:11,398 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 93 predicate places.
[2024-11-07 19:37:11,398 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 169 transitions, 2131 flow
[2024-11-07 19:37:11,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 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 19:37:11,398 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:11,398 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:11,410 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 19:37:11,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:37:11,599 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:11,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:11,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1166262410, now seen corresponding path program 1 times
[2024-11-07 19:37:11,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:11,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623587803]
[2024-11-07 19:37:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:11,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:37:11,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:11,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623587803]
[2024-11-07 19:37:11,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623587803] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:37:11,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:37:11,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 19:37:11,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559521150]
[2024-11-07 19:37:11,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:37:11,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:37:11,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:11,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:37:11,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:37:11,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49
[2024-11-07 19:37:11,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 169 transitions, 2131 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:11,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:11,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49
[2024-11-07 19:37:11,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:12,467 INFO L124 PetriNetUnfolderBase]: 4759/8145 cut-off events.
[2024-11-07 19:37:12,467 INFO L125 PetriNetUnfolderBase]: For 49082/49098 co-relation queries the response was YES.
[2024-11-07 19:37:12,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30448 conditions, 8145 events. 4759/8145 cut-off events. For 49082/49098 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 55616 event pairs, 2531 based on Foata normal form. 1/7140 useless extension candidates. Maximal degree in co-relation 30364. Up to 5544 conditions per place.
[2024-11-07 19:37:12,520 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 165 selfloop transitions, 22 changer transitions 8/241 dead transitions.
[2024-11-07 19:37:12,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 241 transitions, 3435 flow
[2024-11-07 19:37:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 19:37:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 19:37:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions.
[2024-11-07 19:37:12,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5591836734693878
[2024-11-07 19:37:12,521 INFO L175 Difference]: Start difference. First operand has 145 places, 169 transitions, 2131 flow. Second operand 5 states and 137 transitions.
[2024-11-07 19:37:12,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 241 transitions, 3435 flow
[2024-11-07 19:37:12,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 241 transitions, 3248 flow, removed 5 selfloop flow, removed 7 redundant places.
[2024-11-07 19:37:12,716 INFO L231 Difference]: Finished difference. Result has 142 places, 183 transitions, 2245 flow
[2024-11-07 19:37:12,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=2016, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2245, PETRI_PLACES=142, PETRI_TRANSITIONS=183}
[2024-11-07 19:37:12,717 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 90 predicate places.
[2024-11-07 19:37:12,717 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 183 transitions, 2245 flow
[2024-11-07 19:37:12,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:12,717 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:12,717 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:12,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-07 19:37:12,717 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:12,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:12,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1757959043, now seen corresponding path program 1 times
[2024-11-07 19:37:12,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:12,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719581529]
[2024-11-07 19:37:12,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:12,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:12,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:37:12,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:12,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719581529]
[2024-11-07 19:37:12,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719581529] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:37:12,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:37:12,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 19:37:12,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312417206]
[2024-11-07 19:37:12,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:37:12,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:37:12,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:12,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:37:12,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:37:12,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49
[2024-11-07 19:37:12,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 183 transitions, 2245 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:12,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:12,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49
[2024-11-07 19:37:12,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:13,535 INFO L124 PetriNetUnfolderBase]: 4989/8652 cut-off events.
[2024-11-07 19:37:13,535 INFO L125 PetriNetUnfolderBase]: For 48740/48774 co-relation queries the response was YES.
[2024-11-07 19:37:13,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35289 conditions, 8652 events. 4989/8652 cut-off events. For 48740/48774 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 60635 event pairs, 2599 based on Foata normal form. 119/8638 useless extension candidates. Maximal degree in co-relation 34572. Up to 5939 conditions per place.
[2024-11-07 19:37:13,593 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 164 selfloop transitions, 34 changer transitions 8/252 dead transitions.
[2024-11-07 19:37:13,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 252 transitions, 3576 flow
[2024-11-07 19:37:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 19:37:13,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 19:37:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions.
[2024-11-07 19:37:13,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5510204081632653
[2024-11-07 19:37:13,595 INFO L175 Difference]: Start difference. First operand has 142 places, 183 transitions, 2245 flow. Second operand 5 states and 135 transitions.
[2024-11-07 19:37:13,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 252 transitions, 3576 flow
[2024-11-07 19:37:13,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 252 transitions, 3576 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-07 19:37:13,842 INFO L231 Difference]: Finished difference. Result has 149 places, 195 transitions, 2481 flow
[2024-11-07 19:37:13,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=2245, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2481, PETRI_PLACES=149, PETRI_TRANSITIONS=195}
[2024-11-07 19:37:13,842 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 97 predicate places.
[2024-11-07 19:37:13,842 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 195 transitions, 2481 flow
[2024-11-07 19:37:13,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:13,842 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:13,842 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:13,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-07 19:37:13,843 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:13,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:13,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1032530871, now seen corresponding path program 2 times
[2024-11-07 19:37:13,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:13,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442198494]
[2024-11-07 19:37:13,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:13,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:37:13,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:13,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442198494]
[2024-11-07 19:37:13,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442198494] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:37:13,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:37:13,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 19:37:13,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682526380]
[2024-11-07 19:37:13,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:37:13,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 19:37:13,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:13,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 19:37:13,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-07 19:37:13,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49
[2024-11-07 19:37:13,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 195 transitions, 2481 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 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 19:37:13,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:13,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49
[2024-11-07 19:37:13,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:14,861 INFO L124 PetriNetUnfolderBase]: 5167/9094 cut-off events.
[2024-11-07 19:37:14,861 INFO L125 PetriNetUnfolderBase]: For 57506/57536 co-relation queries the response was YES.
[2024-11-07 19:37:14,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40915 conditions, 9094 events. 5167/9094 cut-off events. For 57506/57536 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 65026 event pairs, 991 based on Foata normal form. 142/9172 useless extension candidates. Maximal degree in co-relation 40078. Up to 4610 conditions per place.
[2024-11-07 19:37:14,951 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 203 selfloop transitions, 43 changer transitions 8/300 dead transitions.
[2024-11-07 19:37:14,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 300 transitions, 4419 flow
[2024-11-07 19:37:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-07 19:37:14,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-11-07 19:37:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions.
[2024-11-07 19:37:14,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5626822157434402
[2024-11-07 19:37:14,953 INFO L175 Difference]: Start difference. First operand has 149 places, 195 transitions, 2481 flow. Second operand 7 states and 193 transitions.
[2024-11-07 19:37:14,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 300 transitions, 4419 flow
[2024-11-07 19:37:15,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 300 transitions, 4417 flow, removed 1 selfloop flow, removed 0 redundant places.
[2024-11-07 19:37:15,302 INFO L231 Difference]: Finished difference. Result has 159 places, 204 transitions, 2761 flow
[2024-11-07 19:37:15,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=2466, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2761, PETRI_PLACES=159, PETRI_TRANSITIONS=204}
[2024-11-07 19:37:15,303 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 107 predicate places.
[2024-11-07 19:37:15,303 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 204 transitions, 2761 flow
[2024-11-07 19:37:15,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 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 19:37:15,303 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:15,303 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:15,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-07 19:37:15,303 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:15,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:15,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1815801998, now seen corresponding path program 2 times
[2024-11-07 19:37:15,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:15,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603674225]
[2024-11-07 19:37:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:37:15,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:15,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603674225]
[2024-11-07 19:37:15,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603674225] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:37:15,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:37:15,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 19:37:15,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872632376]
[2024-11-07 19:37:15,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:37:15,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:37:15,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:15,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:37:15,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:37:15,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49
[2024-11-07 19:37:15,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 204 transitions, 2761 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:15,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:15,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49
[2024-11-07 19:37:15,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:16,223 INFO L124 PetriNetUnfolderBase]: 4943/8675 cut-off events.
[2024-11-07 19:37:16,223 INFO L125 PetriNetUnfolderBase]: For 64598/64644 co-relation queries the response was YES.
[2024-11-07 19:37:16,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41765 conditions, 8675 events. 4943/8675 cut-off events. For 64598/64644 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 61506 event pairs, 2301 based on Foata normal form. 41/8560 useless extension candidates. Maximal degree in co-relation 40853. Up to 5718 conditions per place.
[2024-11-07 19:37:16,299 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 154 selfloop transitions, 36 changer transitions 18/251 dead transitions.
[2024-11-07 19:37:16,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 251 transitions, 3745 flow
[2024-11-07 19:37:16,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 19:37:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 19:37:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions.
[2024-11-07 19:37:16,300 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428
[2024-11-07 19:37:16,300 INFO L175 Difference]: Start difference. First operand has 159 places, 204 transitions, 2761 flow. Second operand 5 states and 133 transitions.
[2024-11-07 19:37:16,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 251 transitions, 3745 flow
[2024-11-07 19:37:16,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 251 transitions, 3669 flow, removed 18 selfloop flow, removed 3 redundant places.
[2024-11-07 19:37:16,638 INFO L231 Difference]: Finished difference. Result has 162 places, 201 transitions, 2789 flow
[2024-11-07 19:37:16,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=2627, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2789, PETRI_PLACES=162, PETRI_TRANSITIONS=201}
[2024-11-07 19:37:16,639 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 110 predicate places.
[2024-11-07 19:37:16,639 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 201 transitions, 2789 flow
[2024-11-07 19:37:16,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:16,639 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:16,639 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:16,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-07 19:37:16,639 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:16,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1163681555, now seen corresponding path program 3 times
[2024-11-07 19:37:16,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:16,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016166203]
[2024-11-07 19:37:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:16,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:37:16,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:16,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016166203]
[2024-11-07 19:37:16,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016166203] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:37:16,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:37:16,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 19:37:16,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969151835]
[2024-11-07 19:37:16,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:37:16,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:37:16,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:16,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:37:16,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:37:16,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49
[2024-11-07 19:37:16,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 201 transitions, 2789 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:16,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:16,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49
[2024-11-07 19:37:16,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:17,484 INFO L124 PetriNetUnfolderBase]: 4093/7194 cut-off events.
[2024-11-07 19:37:17,484 INFO L125 PetriNetUnfolderBase]: For 57986/58030 co-relation queries the response was YES.
[2024-11-07 19:37:17,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35998 conditions, 7194 events. 4093/7194 cut-off events. For 57986/58030 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 48980 event pairs, 1351 based on Foata normal form. 129/7199 useless extension candidates. Maximal degree in co-relation 35388. Up to 3585 conditions per place.
[2024-11-07 19:37:17,543 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 142 selfloop transitions, 21 changer transitions 38/235 dead transitions.
[2024-11-07 19:37:17,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 235 transitions, 3475 flow
[2024-11-07 19:37:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 19:37:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 19:37:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 143 transitions.
[2024-11-07 19:37:17,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5836734693877551
[2024-11-07 19:37:17,545 INFO L175 Difference]: Start difference. First operand has 162 places, 201 transitions, 2789 flow. Second operand 5 states and 143 transitions.
[2024-11-07 19:37:17,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 235 transitions, 3475 flow
[2024-11-07 19:37:17,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 235 transitions, 3347 flow, removed 15 selfloop flow, removed 9 redundant places.
[2024-11-07 19:37:17,828 INFO L231 Difference]: Finished difference. Result has 156 places, 164 transitions, 2104 flow
[2024-11-07 19:37:17,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=2480, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2104, PETRI_PLACES=156, PETRI_TRANSITIONS=164}
[2024-11-07 19:37:17,829 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 104 predicate places.
[2024-11-07 19:37:17,829 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 164 transitions, 2104 flow
[2024-11-07 19:37:17,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:17,829 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:17,829 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:17,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-07 19:37:17,829 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:17,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:17,830 INFO L85 PathProgramCache]: Analyzing trace with hash -161028562, now seen corresponding path program 3 times
[2024-11-07 19:37:17,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:17,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461555241]
[2024-11-07 19:37:17,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:17,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-07 19:37:17,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:17,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461555241]
[2024-11-07 19:37:17,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461555241] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:37:17,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:37:17,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 19:37:17,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217565580]
[2024-11-07 19:37:17,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:37:17,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:37:17,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:17,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:37:17,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:37:17,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49
[2024-11-07 19:37:17,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 164 transitions, 2104 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:17,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:17,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49
[2024-11-07 19:37:17,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:18,407 INFO L124 PetriNetUnfolderBase]: 3304/5848 cut-off events.
[2024-11-07 19:37:18,408 INFO L125 PetriNetUnfolderBase]: For 45212/45236 co-relation queries the response was YES.
[2024-11-07 19:37:18,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28739 conditions, 5848 events. 3304/5848 cut-off events. For 45212/45236 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 38164 event pairs, 1252 based on Foata normal form. 104/5848 useless extension candidates. Maximal degree in co-relation 28372. Up to 3190 conditions per place.
[2024-11-07 19:37:18,555 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 119 selfloop transitions, 29 changer transitions 18/196 dead transitions.
[2024-11-07 19:37:18,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 196 transitions, 2706 flow
[2024-11-07 19:37:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 19:37:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 19:37:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions.
[2024-11-07 19:37:18,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5673469387755102
[2024-11-07 19:37:18,556 INFO L175 Difference]: Start difference. First operand has 156 places, 164 transitions, 2104 flow. Second operand 5 states and 139 transitions.
[2024-11-07 19:37:18,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 196 transitions, 2706 flow
[2024-11-07 19:37:18,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 196 transitions, 2535 flow, removed 36 selfloop flow, removed 10 redundant places.
[2024-11-07 19:37:18,653 INFO L231 Difference]: Finished difference. Result has 146 places, 148 transitions, 1810 flow
[2024-11-07 19:37:18,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1882, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1810, PETRI_PLACES=146, PETRI_TRANSITIONS=148}
[2024-11-07 19:37:18,654 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 94 predicate places.
[2024-11-07 19:37:18,654 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 148 transitions, 1810 flow
[2024-11-07 19:37:18,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:37:18,654 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:18,654 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:18,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-07 19:37:18,654 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:18,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:18,655 INFO L85 PathProgramCache]: Analyzing trace with hash -200685805, now seen corresponding path program 1 times
[2024-11-07 19:37:18,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:18,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367366632]
[2024-11-07 19:37:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:18,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:19,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:19,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:19,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367366632]
[2024-11-07 19:37:19,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367366632] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:37:19,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424948373]
[2024-11-07 19:37:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:19,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:37:19,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:37:19,814 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 19:37:19,815 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 19:37:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:19,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 38 conjuncts are in the unsatisfiable core
[2024-11-07 19:37:19,922 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:37:19,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-11-07 19:37:20,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:20,328 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:37:21,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 72
[2024-11-07 19:37:21,294 INFO L349 Elim1Store]: treesize reduction 13, result has 64.9 percent of original size
[2024-11-07 19:37:21,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 144
[2024-11-07 19:37:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:21,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424948373] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:37:21,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:37:21,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 39
[2024-11-07 19:37:21,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112999565]
[2024-11-07 19:37:21,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:37:21,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states
[2024-11-07 19:37:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:21,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants.
[2024-11-07 19:37:21,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1378, Unknown=0, NotChecked=0, Total=1560
[2024-11-07 19:37:22,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:37:22,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 148 transitions, 1810 flow. Second operand has 40 states, 40 states have (on average 16.325) internal successors, (653), 40 states have internal predecessors, (653), 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 19:37:22,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:22,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:37:22,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:37:28,307 INFO L124 PetriNetUnfolderBase]: 5738/9826 cut-off events.
[2024-11-07 19:37:28,307 INFO L125 PetriNetUnfolderBase]: For 56983/57452 co-relation queries the response was YES.
[2024-11-07 19:37:28,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44196 conditions, 9826 events. 5738/9826 cut-off events. For 56983/57452 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 68532 event pairs, 1640 based on Foata normal form. 93/9699 useless extension candidates. Maximal degree in co-relation 43780. Up to 1765 conditions per place.
[2024-11-07 19:37:28,385 INFO L140 encePairwiseOnDemand]: 34/49 looper letters, 385 selfloop transitions, 122 changer transitions 80/599 dead transitions.
[2024-11-07 19:37:28,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 599 transitions, 5960 flow
[2024-11-07 19:37:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states.
[2024-11-07 19:37:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states.
[2024-11-07 19:37:28,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 1139 transitions.
[2024-11-07 19:37:28,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4648979591836735
[2024-11-07 19:37:28,387 INFO L175 Difference]: Start difference. First operand has 146 places, 148 transitions, 1810 flow. Second operand 50 states and 1139 transitions.
[2024-11-07 19:37:28,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 599 transitions, 5960 flow
[2024-11-07 19:37:28,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 599 transitions, 5736 flow, removed 8 selfloop flow, removed 8 redundant places.
[2024-11-07 19:37:28,621 INFO L231 Difference]: Finished difference. Result has 197 places, 228 transitions, 3010 flow
[2024-11-07 19:37:28,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1717, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=3010, PETRI_PLACES=197, PETRI_TRANSITIONS=228}
[2024-11-07 19:37:28,622 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 145 predicate places.
[2024-11-07 19:37:28,622 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 228 transitions, 3010 flow
[2024-11-07 19:37:28,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 16.325) internal successors, (653), 40 states have internal predecessors, (653), 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 19:37:28,623 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:37:28,623 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:37:28,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-07 19:37:28,823 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,SelfDestructingSolverStorable23
[2024-11-07 19:37:28,824 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-07 19:37:28,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:37:28,824 INFO L85 PathProgramCache]: Analyzing trace with hash 653825457, now seen corresponding path program 2 times
[2024-11-07 19:37:28,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:37:28,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043004061]
[2024-11-07 19:37:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:37:28,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:37:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:37:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:29,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:37:29,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043004061]
[2024-11-07 19:37:29,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043004061] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:37:29,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160116790]
[2024-11-07 19:37:29,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 19:37:29,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:37:29,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:37:29,554 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 19:37:29,555 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 19:37:29,651 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-07 19:37:29,651 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 19:37:29,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 37 conjuncts are in the unsatisfiable core
[2024-11-07 19:37:29,654 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:37:29,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-11-07 19:37:29,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-11-07 19:37:30,142 INFO L349 Elim1Store]: treesize reduction 34, result has 17.1 percent of original size
[2024-11-07 19:37:30,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 38
[2024-11-07 19:37:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:30,172 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:37:31,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 97
[2024-11-07 19:37:31,989 INFO L349 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size
[2024-11-07 19:37:31,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 858 treesize of output 746
[2024-11-07 19:37:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:37:37,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160116790] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:37:37,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:37:37,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 39
[2024-11-07 19:37:37,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987083588]
[2024-11-07 19:37:37,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:37:37,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states
[2024-11-07 19:37:37,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:37:37,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants.
[2024-11-07 19:37:37,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1362, Unknown=0, NotChecked=0, Total=1560
[2024-11-07 19:37:38,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49
[2024-11-07 19:37:38,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 228 transitions, 3010 flow. Second operand has 40 states, 40 states have (on average 16.325) internal successors, (653), 40 states have internal predecessors, (653), 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 19:37:38,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:37:38,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49
[2024-11-07 19:37:38,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand