./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --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/goblint-regression/09-regions_13-arraycollapse_nr.i', '-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', 'b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b']
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/goblint-regression/09-regions_13-arraycollapse_nr.i -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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 19:23:04,678 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 19:23:04,765 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-07 19:23:04,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 19:23:04,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 19:23:04,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 19:23:04,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 19:23:04,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 19:23:04,784 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 19:23:04,785 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 19:23:04,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 19:23:04,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 19:23:04,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 19:23:04,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 19:23:04,785 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 19:23:04,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 19:23:04,785 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 19:23:04,786 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 19:23:04,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 19:23:04,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 19:23:04,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 19:23:04,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 19:23:04,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 19:23:04,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 19:23:04,788 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 -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b
[2024-11-07 19:23:05,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 19:23:05,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 19:23:05,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 19:23:05,200 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 19:23:05,201 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 19:23:05,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i
[2024-11-07 19:23:06,362 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 19:23:06,749 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 19:23:06,750 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i
[2024-11-07 19:23:06,765 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c3fa8cf65/a22ef5e359e6483791c56ebc827c7284/FLAG3cc188226
[2024-11-07 19:23:06,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c3fa8cf65/a22ef5e359e6483791c56ebc827c7284
[2024-11-07 19:23:06,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 19:23:06,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 19:23:06,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 19:23:06,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 19:23:06,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 19:23:06,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:06" (1/1) ...
[2024-11-07 19:23:06,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b425cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:06, skipping insertion in model container
[2024-11-07 19:23:06,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:06" (1/1) ...
[2024-11-07 19:23:07,010 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 19:23:07,366 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 19:23:07,395 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 19:23:07,450 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 19:23:07,519 INFO L204 MainTranslator]: Completed translation
[2024-11-07 19:23:07,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07 WrapperNode
[2024-11-07 19:23:07,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 19:23:07,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 19:23:07,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 19:23:07,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 19:23:07,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,581 INFO L138 Inliner]: procedures = 372, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 229
[2024-11-07 19:23:07,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 19:23:07,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 19:23:07,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 19:23:07,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 19:23:07,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,646 INFO L175 MemorySlicer]: Split 90 memory accesses to 3 slices as follows [50, 16, 24]. 56 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [50, 10, 0]. The 19 writes are split as follows [0, 1, 18].
[2024-11-07 19:23:07,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 19:23:07,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 19:23:07,681 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 19:23:07,681 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 19:23:07,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (1/1) ...
[2024-11-07 19:23:07,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 19:23:07,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:23:07,718 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 19:23:07,725 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 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-07 19:23:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-07 19:23:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-07 19:23:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-11-07 19:23:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-11-07 19:23:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 19:23:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 19:23:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-07 19:23:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 19:23:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 19:23:07,744 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 19:23:07,865 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 19:23:07,866 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 19:23:08,577 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 19:23:08,581 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 19:23:09,163 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 19:23:09,168 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-07 19:23:09,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:23:09 BoogieIcfgContainer
[2024-11-07 19:23:09,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 19:23:09,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 19:23:09,170 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 19:23:09,177 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 19:23:09,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:23:06" (1/3) ...
[2024-11-07 19:23:09,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573fd948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:23:09, skipping insertion in model container
[2024-11-07 19:23:09,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07" (2/3) ...
[2024-11-07 19:23:09,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573fd948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:23:09, skipping insertion in model container
[2024-11-07 19:23:09,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:23:09" (3/3) ...
[2024-11-07 19:23:09,179 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i
[2024-11-07 19:23:09,201 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 19:23:09,202 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations.
[2024-11-07 19:23:09,202 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 19:23:09,290 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-07 19:23:09,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 107 transitions, 218 flow
[2024-11-07 19:23:09,427 INFO L124 PetriNetUnfolderBase]: 1/106 cut-off events.
[2024-11-07 19:23:09,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 19:23:09,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 1/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 328 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place.
[2024-11-07 19:23:09,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 107 transitions, 218 flow
[2024-11-07 19:23:09,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 106 transitions, 215 flow
[2024-11-07 19:23:09,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 19:23:09,450 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;@ee31730, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 19:23:09,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 74 error locations.
[2024-11-07 19:23:09,456 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 19:23:09,456 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events.
[2024-11-07 19:23:09,456 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 19:23:09,456 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:09,456 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-07 19:23:09,457 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:09,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:09,460 INFO L85 PathProgramCache]: Analyzing trace with hash 661789, now seen corresponding path program 1 times
[2024-11-07 19:23:09,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:09,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783615245]
[2024-11-07 19:23:09,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:09,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:09,696 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 19:23:09,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:09,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783615245]
[2024-11-07 19:23:09,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783615245] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:23:09,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:23:09,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 19:23:09,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211463882]
[2024-11-07 19:23:09,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:23:09,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 19:23:09,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 19:23:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 19:23:09,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 107
[2024-11-07 19:23:09,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 106 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 19:23:09,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:09,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 107
[2024-11-07 19:23:09,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:09,999 INFO L124 PetriNetUnfolderBase]: 64/293 cut-off events.
[2024-11-07 19:23:10,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 19:23:10,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 293 events. 64/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1323 event pairs, 63 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 376. Up to 157 conditions per place.
[2024-11-07 19:23:10,009 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 30 selfloop transitions, 8 changer transitions 0/98 dead transitions.
[2024-11-07 19:23:10,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 275 flow
[2024-11-07 19:23:10,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 19:23:10,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 19:23:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions.
[2024-11-07 19:23:10,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7133956386292835
[2024-11-07 19:23:10,036 INFO L175 Difference]: Start difference. First operand has 109 places, 106 transitions, 215 flow. Second operand 3 states and 229 transitions.
[2024-11-07 19:23:10,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 275 flow
[2024-11-07 19:23:10,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 19:23:10,051 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 214 flow
[2024-11-07 19:23:10,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=102, PETRI_TRANSITIONS=98}
[2024-11-07 19:23:10,060 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -7 predicate places.
[2024-11-07 19:23:10,060 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 214 flow
[2024-11-07 19:23:10,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 19:23:10,061 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:10,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-07 19:23:10,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 19:23:10,061 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:10,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:10,065 INFO L85 PathProgramCache]: Analyzing trace with hash 661790, now seen corresponding path program 1 times
[2024-11-07 19:23:10,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740816846]
[2024-11-07 19:23:10,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:10,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:10,315 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 19:23:10,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:10,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740816846]
[2024-11-07 19:23:10,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740816846] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:23:10,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:23:10,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 19:23:10,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21105103]
[2024-11-07 19:23:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:23:10,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 19:23:10,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 19:23:10,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 19:23:10,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 107
[2024-11-07 19:23:10,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 19:23:10,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:10,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 107
[2024-11-07 19:23:10,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:10,620 INFO L124 PetriNetUnfolderBase]: 64/285 cut-off events.
[2024-11-07 19:23:10,620 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES.
[2024-11-07 19:23:10,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 285 events. 64/285 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1284 event pairs, 63 based on Foata normal form. 8/226 useless extension candidates. Maximal degree in co-relation 395. Up to 157 conditions per place.
[2024-11-07 19:23:10,624 INFO L140 encePairwiseOnDemand]: 91/107 looper letters, 26 selfloop transitions, 8 changer transitions 0/90 dead transitions.
[2024-11-07 19:23:10,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 90 transitions, 266 flow
[2024-11-07 19:23:10,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 19:23:10,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 19:23:10,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions.
[2024-11-07 19:23:10,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7383177570093458
[2024-11-07 19:23:10,627 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 214 flow. Second operand 3 states and 237 transitions.
[2024-11-07 19:23:10,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 90 transitions, 266 flow
[2024-11-07 19:23:10,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 90 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 19:23:10,630 INFO L231 Difference]: Finished difference. Result has 94 places, 90 transitions, 198 flow
[2024-11-07 19:23:10,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=94, PETRI_TRANSITIONS=90}
[2024-11-07 19:23:10,631 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -15 predicate places.
[2024-11-07 19:23:10,632 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 90 transitions, 198 flow
[2024-11-07 19:23:10,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 19:23:10,632 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:10,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-11-07 19:23:10,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 19:23:10,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:10,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:10,633 INFO L85 PathProgramCache]: Analyzing trace with hash 636000131, now seen corresponding path program 1 times
[2024-11-07 19:23:10,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:10,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884492295]
[2024-11-07 19:23:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:10,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:10,838 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 19:23:10,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:10,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884492295]
[2024-11-07 19:23:10,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884492295] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:23:10,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:23:10,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 19:23:10,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417425955]
[2024-11-07 19:23:10,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:23:10,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 19:23:10,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:10,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 19:23:10,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-07 19:23:11,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 107
[2024-11-07 19:23:11,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 90 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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 19:23:11,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:11,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 107
[2024-11-07 19:23:11,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:11,153 INFO L124 PetriNetUnfolderBase]: 73/305 cut-off events.
[2024-11-07 19:23:11,154 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-07 19:23:11,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 305 events. 73/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1389 event pairs, 72 based on Foata normal form. 1/245 useless extension candidates. Maximal degree in co-relation 437. Up to 183 conditions per place.
[2024-11-07 19:23:11,156 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 38 selfloop transitions, 1 changer transitions 0/84 dead transitions.
[2024-11-07 19:23:11,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 84 transitions, 264 flow
[2024-11-07 19:23:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 19:23:11,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 19:23:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions.
[2024-11-07 19:23:11,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.719626168224299
[2024-11-07 19:23:11,161 INFO L175 Difference]: Start difference. First operand has 94 places, 90 transitions, 198 flow. Second operand 3 states and 231 transitions.
[2024-11-07 19:23:11,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 84 transitions, 264 flow
[2024-11-07 19:23:11,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 84 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 19:23:11,163 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 172 flow
[2024-11-07 19:23:11,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=88, PETRI_TRANSITIONS=84}
[2024-11-07 19:23:11,165 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places.
[2024-11-07 19:23:11,165 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 172 flow
[2024-11-07 19:23:11,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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 19:23:11,165 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:11,165 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-11-07 19:23:11,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 19:23:11,166 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:11,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:11,166 INFO L85 PathProgramCache]: Analyzing trace with hash 636000132, now seen corresponding path program 1 times
[2024-11-07 19:23:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:11,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911716377]
[2024-11-07 19:23:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:11,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:11,350 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 19:23:11,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:11,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911716377]
[2024-11-07 19:23:11,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911716377] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:23:11,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:23:11,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 19:23:11,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149888754]
[2024-11-07 19:23:11,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:23:11,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:23:11,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:11,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:23:11,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:23:11,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107
[2024-11-07 19:23:11,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:23:11,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:11,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107
[2024-11-07 19:23:11,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:11,691 INFO L124 PetriNetUnfolderBase]: 64/291 cut-off events.
[2024-11-07 19:23:11,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 19:23:11,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 291 events. 64/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1224 event pairs, 63 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 460. Up to 163 conditions per place.
[2024-11-07 19:23:11,694 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 37 selfloop transitions, 6 changer transitions 0/91 dead transitions.
[2024-11-07 19:23:11,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 272 flow
[2024-11-07 19:23:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 19:23:11,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 19:23:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions.
[2024-11-07 19:23:11,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6401869158878505
[2024-11-07 19:23:11,695 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 172 flow. Second operand 4 states and 274 transitions.
[2024-11-07 19:23:11,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 91 transitions, 272 flow
[2024-11-07 19:23:11,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 271 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 19:23:11,700 INFO L231 Difference]: Finished difference. Result has 92 places, 89 transitions, 219 flow
[2024-11-07 19:23:11,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=92, PETRI_TRANSITIONS=89}
[2024-11-07 19:23:11,702 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -17 predicate places.
[2024-11-07 19:23:11,702 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 89 transitions, 219 flow
[2024-11-07 19:23:11,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:23:11,702 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:11,702 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:23:11,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 19:23:11,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:11,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:11,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1245755487, now seen corresponding path program 1 times
[2024-11-07 19:23:11,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:11,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893677995]
[2024-11-07 19:23:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:11,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:11,958 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 19:23:11,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:11,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893677995]
[2024-11-07 19:23:11,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893677995] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:23:11,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:23:11,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 19:23:11,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725740761]
[2024-11-07 19:23:11,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:23:11,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-07 19:23:11,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:11,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-07 19:23:11,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-07 19:23:12,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 107
[2024-11-07 19:23:12,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 19:23:12,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:12,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 107
[2024-11-07 19:23:12,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:12,404 INFO L124 PetriNetUnfolderBase]: 64/285 cut-off events.
[2024-11-07 19:23:12,405 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-07 19:23:12,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 285 events. 64/285 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1182 event pairs, 63 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 482. Up to 154 conditions per place.
[2024-11-07 19:23:12,412 INFO L140 encePairwiseOnDemand]: 90/107 looper letters, 30 selfloop transitions, 18 changer transitions 0/85 dead transitions.
[2024-11-07 19:23:12,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 85 transitions, 307 flow
[2024-11-07 19:23:12,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-07 19:23:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-11-07 19:23:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 463 transitions.
[2024-11-07 19:23:12,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5408878504672897
[2024-11-07 19:23:12,413 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 219 flow. Second operand 8 states and 463 transitions.
[2024-11-07 19:23:12,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 85 transitions, 307 flow
[2024-11-07 19:23:12,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 85 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-07 19:23:12,444 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 245 flow
[2024-11-07 19:23:12,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=245, PETRI_PLACES=94, PETRI_TRANSITIONS=85}
[2024-11-07 19:23:12,445 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -15 predicate places.
[2024-11-07 19:23:12,445 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 245 flow
[2024-11-07 19:23:12,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 19:23:12,445 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:12,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:23:12,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 19:23:12,445 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:12,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:12,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1245755488, now seen corresponding path program 1 times
[2024-11-07 19:23:12,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:12,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614274403]
[2024-11-07 19:23:12,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:12,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:13,064 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 19:23:13,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:13,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614274403]
[2024-11-07 19:23:13,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614274403] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:23:13,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:23:13,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 19:23:13,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815828087]
[2024-11-07 19:23:13,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:23:13,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-07 19:23:13,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:13,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-07 19:23:13,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-07 19:23:13,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107
[2024-11-07 19:23:13,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 245 flow. Second operand has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:23:13,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:13,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107
[2024-11-07 19:23:13,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:14,023 INFO L124 PetriNetUnfolderBase]: 64/281 cut-off events.
[2024-11-07 19:23:14,024 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES.
[2024-11-07 19:23:14,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 281 events. 64/281 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1180 event pairs, 63 based on Foata normal form. 2/234 useless extension candidates. Maximal degree in co-relation 494. Up to 158 conditions per place.
[2024-11-07 19:23:14,029 INFO L140 encePairwiseOnDemand]: 95/107 looper letters, 32 selfloop transitions, 15 changer transitions 0/83 dead transitions.
[2024-11-07 19:23:14,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 83 transitions, 335 flow
[2024-11-07 19:23:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-07 19:23:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-11-07 19:23:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 373 transitions.
[2024-11-07 19:23:14,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4979973297730307
[2024-11-07 19:23:14,030 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 245 flow. Second operand 7 states and 373 transitions.
[2024-11-07 19:23:14,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 83 transitions, 335 flow
[2024-11-07 19:23:14,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 83 transitions, 299 flow, removed 0 selfloop flow, removed 7 redundant places.
[2024-11-07 19:23:14,032 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 235 flow
[2024-11-07 19:23:14,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=235, PETRI_PLACES=91, PETRI_TRANSITIONS=83}
[2024-11-07 19:23:14,032 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -18 predicate places.
[2024-11-07 19:23:14,032 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 235 flow
[2024-11-07 19:23:14,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:23:14,032 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:14,032 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:23:14,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 19:23:14,033 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:14,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1124829933, now seen corresponding path program 1 times
[2024-11-07 19:23:14,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:14,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733156574]
[2024-11-07 19:23:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:14,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:14,123 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 19:23:14,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:14,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733156574]
[2024-11-07 19:23:14,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733156574] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:23:14,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:23:14,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 19:23:14,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7403050]
[2024-11-07 19:23:14,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:23:14,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:23:14,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:14,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:23:14,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:23:14,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107
[2024-11-07 19:23:14,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 235 flow. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 19:23:14,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:14,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107
[2024-11-07 19:23:14,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:14,410 INFO L124 PetriNetUnfolderBase]: 64/279 cut-off events.
[2024-11-07 19:23:14,410 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES.
[2024-11-07 19:23:14,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 279 events. 64/279 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1165 event pairs, 63 based on Foata normal form. 2/231 useless extension candidates. Maximal degree in co-relation 487. Up to 158 conditions per place.
[2024-11-07 19:23:14,411 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 30 selfloop transitions, 15 changer transitions 0/82 dead transitions.
[2024-11-07 19:23:14,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 82 transitions, 323 flow
[2024-11-07 19:23:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 19:23:14,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 19:23:14,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 331 transitions.
[2024-11-07 19:23:14,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6186915887850467
[2024-11-07 19:23:14,416 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 235 flow. Second operand 5 states and 331 transitions.
[2024-11-07 19:23:14,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 82 transitions, 323 flow
[2024-11-07 19:23:14,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 82 transitions, 293 flow, removed 0 selfloop flow, removed 6 redundant places.
[2024-11-07 19:23:14,418 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 233 flow
[2024-11-07 19:23:14,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=233, PETRI_PLACES=88, PETRI_TRANSITIONS=82}
[2024-11-07 19:23:14,418 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places.
[2024-11-07 19:23:14,418 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 233 flow
[2024-11-07 19:23:14,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 19:23:14,418 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:14,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:23:14,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 19:23:14,418 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:14,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:14,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1124829932, now seen corresponding path program 1 times
[2024-11-07 19:23:14,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:14,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605825188]
[2024-11-07 19:23:14,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:14,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:14,579 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 19:23:14,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:14,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605825188]
[2024-11-07 19:23:14,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605825188] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 19:23:14,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 19:23:14,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 19:23:14,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395148707]
[2024-11-07 19:23:14,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 19:23:14,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 19:23:14,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:14,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 19:23:14,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 19:23:14,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 107
[2024-11-07 19:23:14,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 82 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:23:14,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:14,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 107
[2024-11-07 19:23:14,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:14,850 INFO L124 PetriNetUnfolderBase]: 64/277 cut-off events.
[2024-11-07 19:23:14,850 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES.
[2024-11-07 19:23:14,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 277 events. 64/277 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1161 event pairs, 63 based on Foata normal form. 2/229 useless extension candidates. Maximal degree in co-relation 479. Up to 158 conditions per place.
[2024-11-07 19:23:14,851 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 26 selfloop transitions, 15 changer transitions 0/81 dead transitions.
[2024-11-07 19:23:14,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 81 transitions, 313 flow
[2024-11-07 19:23:14,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 19:23:14,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 19:23:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 347 transitions.
[2024-11-07 19:23:14,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6485981308411215
[2024-11-07 19:23:14,853 INFO L175 Difference]: Start difference. First operand has 88 places, 82 transitions, 233 flow. Second operand 5 states and 347 transitions.
[2024-11-07 19:23:14,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 81 transitions, 313 flow
[2024-11-07 19:23:14,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 81 transitions, 283 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-07 19:23:14,854 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 231 flow
[2024-11-07 19:23:14,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=231, PETRI_PLACES=87, PETRI_TRANSITIONS=81}
[2024-11-07 19:23:14,855 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -22 predicate places.
[2024-11-07 19:23:14,855 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 231 flow
[2024-11-07 19:23:14,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 19:23:14,855 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:14,855 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 19:23:14,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-07 19:23:14,856 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:14,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:14,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1778571907, now seen corresponding path program 1 times
[2024-11-07 19:23:14,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:14,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46454511]
[2024-11-07 19:23:14,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:14,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:15,196 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 19:23:15,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:15,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46454511]
[2024-11-07 19:23:15,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46454511] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:23:15,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546432955]
[2024-11-07 19:23:15,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:15,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:23:15,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:23:15,201 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 19:23:15,205 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 19:23:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:15,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 45 conjuncts are in the unsatisfiable core
[2024-11-07 19:23:15,358 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:23:15,428 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-07 19:23:15,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-07 19:23:15,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-07 19:23:15,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 19:23:15,535 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-07 19:23:15,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-07 19:23:15,565 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-07 19:23:15,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-07 19:23:15,753 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-07 19:23:15,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-07 19:23:15,818 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 19:23:15,819 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:23:16,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-07 19:23:16,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2024-11-07 19:23:16,220 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-07 19:23:16,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-11-07 19:23:16,338 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 19:23:16,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546432955] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:23:16,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:23:16,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 4] total 17
[2024-11-07 19:23:16,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894043027]
[2024-11-07 19:23:16,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:23:16,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-07 19:23:16,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:16,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-07 19:23:16,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342
[2024-11-07 19:23:18,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 107
[2024-11-07 19:23:18,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 231 flow. Second operand has 19 states, 19 states have (on average 57.73684210526316) internal successors, (1097), 19 states have internal predecessors, (1097), 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 19:23:18,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:18,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 107
[2024-11-07 19:23:18,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:19,320 INFO L124 PetriNetUnfolderBase]: 75/332 cut-off events.
[2024-11-07 19:23:19,321 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES.
[2024-11-07 19:23:19,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 332 events. 75/332 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1455 event pairs, 72 based on Foata normal form. 6/281 useless extension candidates. Maximal degree in co-relation 602. Up to 178 conditions per place.
[2024-11-07 19:23:19,323 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 46 selfloop transitions, 16 changer transitions 0/101 dead transitions.
[2024-11-07 19:23:19,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 101 transitions, 459 flow
[2024-11-07 19:23:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-07 19:23:19,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-11-07 19:23:19,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 685 transitions.
[2024-11-07 19:23:19,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5819881053525914
[2024-11-07 19:23:19,325 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 231 flow. Second operand 11 states and 685 transitions.
[2024-11-07 19:23:19,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 101 transitions, 459 flow
[2024-11-07 19:23:19,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 101 transitions, 393 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-07 19:23:19,329 INFO L231 Difference]: Finished difference. Result has 97 places, 89 transitions, 305 flow
[2024-11-07 19:23:19,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=305, PETRI_PLACES=97, PETRI_TRANSITIONS=89}
[2024-11-07 19:23:19,329 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -12 predicate places.
[2024-11-07 19:23:19,329 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 89 transitions, 305 flow
[2024-11-07 19:23:19,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 57.73684210526316) internal successors, (1097), 19 states have internal predecessors, (1097), 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 19:23:19,331 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:19,331 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-11-07 19:23:19,347 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 19:23:19,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:23:19,536 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:19,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:19,536 INFO L85 PathProgramCache]: Analyzing trace with hash -973661121, now seen corresponding path program 1 times
[2024-11-07 19:23:19,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:19,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723205250]
[2024-11-07 19:23:19,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:19,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:19,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:19,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723205250]
[2024-11-07 19:23:19,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723205250] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:23:19,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041818693]
[2024-11-07 19:23:19,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:19,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:23:19,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:23:19,700 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 19:23:19,701 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 19:23:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:19,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-07 19:23:19,863 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:23:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:19,890 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:23:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:19,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041818693] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:23:19,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:23:19,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8
[2024-11-07 19:23:19,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600079342]
[2024-11-07 19:23:19,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:23:19,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-07 19:23:19,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:19,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-07 19:23:19,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72
[2024-11-07 19:23:19,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107
[2024-11-07 19:23:19,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 89 transitions, 305 flow. Second operand has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 9 states have internal predecessors, (698), 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 19:23:19,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:19,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107
[2024-11-07 19:23:19,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:20,090 INFO L124 PetriNetUnfolderBase]: 64/318 cut-off events.
[2024-11-07 19:23:20,090 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES.
[2024-11-07 19:23:20,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 318 events. 64/318 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1129 event pairs, 63 based on Foata normal form. 4/272 useless extension candidates. Maximal degree in co-relation 603. Up to 154 conditions per place.
[2024-11-07 19:23:20,091 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 62 selfloop transitions, 8 changer transitions 0/111 dead transitions.
[2024-11-07 19:23:20,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 111 transitions, 541 flow
[2024-11-07 19:23:20,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-07 19:23:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-11-07 19:23:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 658 transitions.
[2024-11-07 19:23:20,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7686915887850467
[2024-11-07 19:23:20,094 INFO L175 Difference]: Start difference. First operand has 97 places, 89 transitions, 305 flow. Second operand 8 states and 658 transitions.
[2024-11-07 19:23:20,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 111 transitions, 541 flow
[2024-11-07 19:23:20,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 111 transitions, 521 flow, removed 5 selfloop flow, removed 2 redundant places.
[2024-11-07 19:23:20,097 INFO L231 Difference]: Finished difference. Result has 105 places, 90 transitions, 321 flow
[2024-11-07 19:23:20,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=321, PETRI_PLACES=105, PETRI_TRANSITIONS=90}
[2024-11-07 19:23:20,100 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, -4 predicate places.
[2024-11-07 19:23:20,100 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 90 transitions, 321 flow
[2024-11-07 19:23:20,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 9 states have internal predecessors, (698), 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 19:23:20,101 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:20,101 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1]
[2024-11-07 19:23:20,114 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 19:23:20,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:23:20,302 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:20,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:20,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2049655832, now seen corresponding path program 2 times
[2024-11-07 19:23:20,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:20,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794045868]
[2024-11-07 19:23:20,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:20,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:21,455 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:21,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:21,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794045868]
[2024-11-07 19:23:21,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794045868] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:23:21,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439521555]
[2024-11-07 19:23:21,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 19:23:21,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:23:21,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:23:21,458 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 19:23:21,460 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 19:23:21,678 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-07 19:23:21,678 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 19:23:21,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 115 conjuncts are in the unsatisfiable core
[2024-11-07 19:23:21,688 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:23:21,720 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-07 19:23:21,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-07 19:23:21,760 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-07 19:23:21,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-07 19:23:21,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-07 19:23:21,876 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-07 19:23:21,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-07 19:23:21,885 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-07 19:23:21,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-07 19:23:21,950 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-07 19:23:21,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-07 19:23:21,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 19:23:22,101 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-07 19:23:22,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-07 19:23:22,132 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-07 19:23:22,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-07 19:23:22,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2024-11-07 19:23:22,225 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-07 19:23:22,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-07 19:23:22,382 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-07 19:23:22,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-07 19:23:22,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-07 19:23:22,488 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-07 19:23:22,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-07 19:23:22,504 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-07 19:23:22,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-07 19:23:22,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23
[2024-11-07 19:23:22,694 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-07 19:23:22,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-07 19:23:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:22,741 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:23:22,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-07 19:23:22,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2024-11-07 19:23:23,056 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-07 19:23:23,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-11-07 19:23:23,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-07 19:23:23,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2024-11-07 19:23:23,285 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-07 19:23:23,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-11-07 19:23:23,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-07 19:23:23,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2024-11-07 19:23:23,542 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-07 19:23:23,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-11-07 19:23:23,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-07 19:23:23,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2024-11-07 19:23:23,880 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-07 19:23:23,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2024-11-07 19:23:23,962 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:23,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439521555] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:23:23,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:23:23,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 22, 10] total 45
[2024-11-07 19:23:23,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531047723]
[2024-11-07 19:23:23,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:23:23,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2024-11-07 19:23:23,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:23,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2024-11-07 19:23:23,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=1781, Unknown=0, NotChecked=0, Total=2162
[2024-11-07 19:23:37,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 107
[2024-11-07 19:23:37,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 90 transitions, 321 flow. Second operand has 47 states, 47 states have (on average 58.04255319148936) internal successors, (2728), 47 states have internal predecessors, (2728), 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 19:23:37,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:37,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 107
[2024-11-07 19:23:37,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:39,050 INFO L124 PetriNetUnfolderBase]: 77/394 cut-off events.
[2024-11-07 19:23:39,051 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES.
[2024-11-07 19:23:39,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 394 events. 77/394 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1530 event pairs, 72 based on Foata normal form. 6/346 useless extension candidates. Maximal degree in co-relation 821. Up to 180 conditions per place.
[2024-11-07 19:23:39,053 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 74 selfloop transitions, 32 changer transitions 0/145 dead transitions.
[2024-11-07 19:23:39,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 145 transitions, 867 flow
[2024-11-07 19:23:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-07 19:23:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states.
[2024-11-07 19:23:39,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1568 transitions.
[2024-11-07 19:23:39,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5636232925952552
[2024-11-07 19:23:39,057 INFO L175 Difference]: Start difference. First operand has 105 places, 90 transitions, 321 flow. Second operand 26 states and 1568 transitions.
[2024-11-07 19:23:39,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 145 transitions, 867 flow
[2024-11-07 19:23:39,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 145 transitions, 851 flow, removed 5 selfloop flow, removed 3 redundant places.
[2024-11-07 19:23:39,064 INFO L231 Difference]: Finished difference. Result has 140 places, 106 transitions, 585 flow
[2024-11-07 19:23:39,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=585, PETRI_PLACES=140, PETRI_TRANSITIONS=106}
[2024-11-07 19:23:39,065 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 31 predicate places.
[2024-11-07 19:23:39,066 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 106 transitions, 585 flow
[2024-11-07 19:23:39,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 58.04255319148936) internal successors, (2728), 47 states have internal predecessors, (2728), 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 19:23:39,066 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:39,066 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1]
[2024-11-07 19:23:39,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-07 19:23:39,267 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 19:23:39,267 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:39,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:39,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1713972899, now seen corresponding path program 2 times
[2024-11-07 19:23:39,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546172943]
[2024-11-07 19:23:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:39,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:39,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:39,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546172943]
[2024-11-07 19:23:39,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546172943] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:23:39,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467714870]
[2024-11-07 19:23:39,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 19:23:39,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:23:39,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:23:39,565 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 19:23:39,566 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 19:23:39,852 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-07 19:23:39,852 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 19:23:39,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-07 19:23:39,863 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 19:23:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:39,964 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 19:23:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:40,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467714870] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 19:23:40,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 19:23:40,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12
[2024-11-07 19:23:40,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058986562]
[2024-11-07 19:23:40,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 19:23:40,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-07 19:23:40,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 19:23:40,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-07 19:23:40,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-11-07 19:23:40,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107
[2024-11-07 19:23:40,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 106 transitions, 585 flow. Second operand has 13 states, 13 states have (on average 78.84615384615384) internal successors, (1025), 13 states have internal predecessors, (1025), 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 19:23:40,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 19:23:40,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107
[2024-11-07 19:23:40,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 19:23:40,324 INFO L124 PetriNetUnfolderBase]: 64/360 cut-off events.
[2024-11-07 19:23:40,324 INFO L125 PetriNetUnfolderBase]: For 530/530 co-relation queries the response was YES.
[2024-11-07 19:23:40,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 360 events. 64/360 cut-off events. For 530/530 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1128 event pairs, 63 based on Foata normal form. 4/314 useless extension candidates. Maximal degree in co-relation 823. Up to 154 conditions per place.
[2024-11-07 19:23:40,325 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 87 selfloop transitions, 12 changer transitions 0/140 dead transitions.
[2024-11-07 19:23:40,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 140 transitions, 957 flow
[2024-11-07 19:23:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-07 19:23:40,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-11-07 19:23:40,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 978 transitions.
[2024-11-07 19:23:40,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7616822429906542
[2024-11-07 19:23:40,330 INFO L175 Difference]: Start difference. First operand has 140 places, 106 transitions, 585 flow. Second operand 12 states and 978 transitions.
[2024-11-07 19:23:40,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 140 transitions, 957 flow
[2024-11-07 19:23:40,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 140 transitions, 866 flow, removed 24 selfloop flow, removed 10 redundant places.
[2024-11-07 19:23:40,339 INFO L231 Difference]: Finished difference. Result has 142 places, 103 transitions, 480 flow
[2024-11-07 19:23:40,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=480, PETRI_PLACES=142, PETRI_TRANSITIONS=103}
[2024-11-07 19:23:40,339 INFO L277 CegarLoopForPetriNet]: 109 programPoint places, 33 predicate places.
[2024-11-07 19:23:40,339 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 103 transitions, 480 flow
[2024-11-07 19:23:40,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.84615384615384) internal successors, (1025), 13 states have internal predecessors, (1025), 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 19:23:40,340 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-07 19:23:40,340 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1]
[2024-11-07 19:23:40,354 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 19:23:40,540 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 19:23:40,540 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] ===
[2024-11-07 19:23:40,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:23:40,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1667616514, now seen corresponding path program 3 times
[2024-11-07 19:23:40,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:23:40,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005385957]
[2024-11-07 19:23:40,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:23:40,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:23:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 19:23:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 399 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 19:23:41,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 19:23:41,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005385957]
[2024-11-07 19:23:41,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005385957] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 19:23:41,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153122300]
[2024-11-07 19:23:41,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-07 19:23:41,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 19:23:41,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:23:41,067 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 19:23:41,068 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