./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix031.opt.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/pthread-wmm/mix031.opt.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix031.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 11:11:45,778 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-07 11:11:45,858 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-07 11:11:45,867 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 11:11:45,870 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 11:11:45,907 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 11:11:45,908 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 11:11:45,909 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 11:11:45,909 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 11:11:45,909 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-07 11:11:45,910 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 11:11:45,911 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 11:11:45,911 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 11:11:45,911 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-07 11:11:45,911 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-07 11:11:45,911 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 11:11:45,912 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-07 11:11:45,912 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-07 11:11:45,912 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-07 11:11:45,912 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-07 11:11:45,912 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-07 11:11:45,913 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 11:11:45,913 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 11:11:45,913 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 11:11:45,913 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-07 11:11:45,913 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-07 11:11:45,913 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-07 11:11:45,913 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-07 11:11:45,914 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 11:11:45,914 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-07 11:11:45,914 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 11:11:45,914 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-07 11:11:45,914 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:11:45,914 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 11:11:45,915 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 11:11:45,915 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 11:11:45,915 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-07 11:11:45,916 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 11:11:45,916 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 11:11:45,916 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 11:11:45,916 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 11:11:45,916 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 11:11:45,916 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 ! call(reach_error())) )


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 -> 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119
[2024-11-07 11:11:46,231 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 11:11:46,242 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 11:11:46,245 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 11:11:46,246 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-07 11:11:46,246 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-07 11:11:46,249 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix031.opt.i
[2024-11-07 11:11:47,544 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-07 11:11:47,834 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-07 11:11:47,835 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix031.opt.i
[2024-11-07 11:11:47,853 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1d859753e/d03b09e19ce948edb95f6bd7485e57a5/FLAG9fe018305
[2024-11-07 11:11:48,116 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1d859753e/d03b09e19ce948edb95f6bd7485e57a5
[2024-11-07 11:11:48,118 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 11:11:48,120 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 11:11:48,121 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 11:11:48,121 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 11:11:48,123 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 11:11:48,124 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,125 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8cf1745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48, skipping insertion in model container
[2024-11-07 11:11:48,125 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,161 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-07 11:11:48,317 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix031.opt.i[987,1000]
[2024-11-07 11:11:48,455 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:11:48,464 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-07 11:11:48,474 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix031.opt.i[987,1000]
[2024-11-07 11:11:48,526 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 11:11:48,568 INFO  L204         MainTranslator]: Completed translation
[2024-11-07 11:11:48,570 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48 WrapperNode
[2024-11-07 11:11:48,570 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 11:11:48,571 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 11:11:48,572 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 11:11:48,572 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 11:11:48,578 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,600 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,634 INFO  L138                Inliner]: procedures = 174, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 114
[2024-11-07 11:11:48,634 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 11:11:48,635 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 11:11:48,635 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 11:11:48,635 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 11:11:48,645 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,645 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,648 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,669 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-07 11:11:48,670 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,671 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,680 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,686 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,688 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,689 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,694 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 11:11:48,695 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 11:11:48,699 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 11:11:48,699 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-07 11:11:48,700 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (1/1) ...
[2024-11-07 11:11:48,707 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 11:11:48,719 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 11:11:48,733 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 11:11:48,739 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 11:11:48,758 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-07 11:11:48,759 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 11:11:48,759 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2024-11-07 11:11:48,760 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2024-11-07 11:11:48,760 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2024-11-07 11:11:48,760 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2024-11-07 11:11:48,760 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 11:11:48,760 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-07 11:11:48,760 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 11:11:48,760 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 11:11:48,762 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 11:11:48,918 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-07 11:11:48,920 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 11:11:49,234 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-07 11:11:49,234 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-07 11:11:49,434 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 11:11:49,434 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-07 11:11:49,435 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:11:49 BoogieIcfgContainer
[2024-11-07 11:11:49,435 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 11:11:49,437 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 11:11:49,437 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 11:11:49,441 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-07 11:11:49,441 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:11:48" (1/3) ...
[2024-11-07 11:11:49,442 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd726f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:11:49, skipping insertion in model container
[2024-11-07 11:11:49,442 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:11:48" (2/3) ...
[2024-11-07 11:11:49,443 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd726f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:11:49, skipping insertion in model container
[2024-11-07 11:11:49,443 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:11:49" (3/3) ...
[2024-11-07 11:11:49,444 INFO  L112   eAbstractionObserver]: Analyzing ICFG mix031.opt.i
[2024-11-07 11:11:49,457 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 11:11:49,457 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 11:11:49,457 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-07 11:11:49,520 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-07 11:11:49,558 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 40 places, 34 transitions, 76 flow
[2024-11-07 11:11:49,624 INFO  L124   PetriNetUnfolderBase]: 1/32 cut-off events.
[2024-11-07 11:11:49,626 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:11:49,629 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 39 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. 
[2024-11-07 11:11:49,631 INFO  L82        GeneralOperation]: Start removeDead. Operand has 40 places, 34 transitions, 76 flow
[2024-11-07 11:11:49,634 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 38 places, 32 transitions, 70 flow
[2024-11-07 11:11:49,642 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 11:11:49,652 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39d6614d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 11:11:49,653 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-11-07 11:11:49,657 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-07 11:11:49,657 INFO  L124   PetriNetUnfolderBase]: 0/9 cut-off events.
[2024-11-07 11:11:49,657 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:11:49,657 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:11:49,658 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:49,658 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:11:49,662 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:11:49,662 INFO  L85        PathProgramCache]: Analyzing trace with hash 865978659, now seen corresponding path program 1 times
[2024-11-07 11:11:49,669 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:11:49,669 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939737271]
[2024-11-07 11:11:49,670 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:11:49,670 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:11:49,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:11:50,122 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 11:11:50,122 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:11:50,122 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939737271]
[2024-11-07 11:11:50,123 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939737271] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:11:50,123 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:11:50,124 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-07 11:11:50,126 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433242307]
[2024-11-07 11:11:50,126 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:11:50,132 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 11:11:50,136 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:11:50,155 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 11:11:50,156 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 11:11:50,158 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 18 out of 34
[2024-11-07 11:11:50,161 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 70 flow. Second operand  has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:11:50,161 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:11:50,161 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 34
[2024-11-07 11:11:50,162 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:11:50,360 INFO  L124   PetriNetUnfolderBase]: 95/270 cut-off events.
[2024-11-07 11:11:50,360 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-07 11:11:50,364 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 456 conditions, 270 events. 95/270 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1488 event pairs, 14 based on Foata normal form. 12/274 useless extension candidates. Maximal degree in co-relation 446. Up to 136 conditions per place. 
[2024-11-07 11:11:50,366 INFO  L140   encePairwiseOnDemand]: 30/34 looper letters, 17 selfloop transitions, 2 changer transitions 2/37 dead transitions.
[2024-11-07 11:11:50,368 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 122 flow
[2024-11-07 11:11:50,369 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-07 11:11:50,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-07 11:11:50,379 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions.
[2024-11-07 11:11:50,382 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.7647058823529411
[2024-11-07 11:11:50,383 INFO  L175             Difference]: Start difference. First operand has 38 places, 32 transitions, 70 flow. Second operand 3 states and 78 transitions.
[2024-11-07 11:11:50,384 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 122 flow
[2024-11-07 11:11:50,387 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 11:11:50,391 INFO  L231             Difference]: Finished difference. Result has 37 places, 29 transitions, 66 flow
[2024-11-07 11:11:50,393 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=29}
[2024-11-07 11:11:50,395 INFO  L277   CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places.
[2024-11-07 11:11:50,396 INFO  L471      AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 66 flow
[2024-11-07 11:11:50,396 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:11:50,396 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:11:50,396 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:50,396 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 11:11:50,396 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:11:50,397 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:11:50,397 INFO  L85        PathProgramCache]: Analyzing trace with hash 676662656, now seen corresponding path program 1 times
[2024-11-07 11:11:50,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:11:50,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992767500]
[2024-11-07 11:11:50,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:11:50,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:11:50,423 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:11:50,749 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 11:11:50,750 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:11:50,750 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992767500]
[2024-11-07 11:11:50,751 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992767500] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:11:50,751 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:11:50,751 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 11:11:50,751 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580095691]
[2024-11-07 11:11:50,751 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:11:50,752 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 11:11:50,752 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:11:50,753 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 11:11:50,753 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-07 11:11:50,775 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34
[2024-11-07 11:11:50,775 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 66 flow. Second operand  has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 11:11:50,777 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:11:50,777 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34
[2024-11-07 11:11:50,777 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:11:51,158 INFO  L124   PetriNetUnfolderBase]: 363/703 cut-off events.
[2024-11-07 11:11:51,158 INFO  L125   PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES.
[2024-11-07 11:11:51,161 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 703 events. 363/703 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4024 event pairs, 124 based on Foata normal form. 0/671 useless extension candidates. Maximal degree in co-relation 1375. Up to 395 conditions per place. 
[2024-11-07 11:11:51,164 INFO  L140   encePairwiseOnDemand]: 27/34 looper letters, 23 selfloop transitions, 3 changer transitions 36/72 dead transitions.
[2024-11-07 11:11:51,164 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 72 transitions, 290 flow
[2024-11-07 11:11:51,165 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-07 11:11:51,166 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-11-07 11:11:51,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 160 transitions.
[2024-11-07 11:11:51,167 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5882352941176471
[2024-11-07 11:11:51,167 INFO  L175             Difference]: Start difference. First operand has 37 places, 29 transitions, 66 flow. Second operand 8 states and 160 transitions.
[2024-11-07 11:11:51,167 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 72 transitions, 290 flow
[2024-11-07 11:11:51,168 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 72 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-07 11:11:51,170 INFO  L231             Difference]: Finished difference. Result has 46 places, 30 transitions, 95 flow
[2024-11-07 11:11:51,171 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=95, PETRI_PLACES=46, PETRI_TRANSITIONS=30}
[2024-11-07 11:11:51,173 INFO  L277   CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places.
[2024-11-07 11:11:51,173 INFO  L471      AbstractCegarLoop]: Abstraction has has 46 places, 30 transitions, 95 flow
[2024-11-07 11:11:51,173 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 11:11:51,173 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:11:51,173 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:51,173 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 11:11:51,173 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:11:51,174 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:11:51,174 INFO  L85        PathProgramCache]: Analyzing trace with hash 548031362, now seen corresponding path program 1 times
[2024-11-07 11:11:51,174 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:11:51,174 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403045300]
[2024-11-07 11:11:51,174 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:11:51,174 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:11:51,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:11:51,403 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 11:11:51,403 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:11:51,403 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403045300]
[2024-11-07 11:11:51,403 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403045300] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:11:51,403 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:11:51,404 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 11:11:51,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494640755]
[2024-11-07 11:11:51,404 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:11:51,404 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 11:11:51,404 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:11:51,405 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 11:11:51,405 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-07 11:11:51,413 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34
[2024-11-07 11:11:51,414 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 30 transitions, 95 flow. Second operand  has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 11:11:51,414 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:11:51,414 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34
[2024-11-07 11:11:51,414 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:11:51,659 INFO  L124   PetriNetUnfolderBase]: 249/503 cut-off events.
[2024-11-07 11:11:51,659 INFO  L125   PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES.
[2024-11-07 11:11:51,662 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 503 events. 249/503 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2610 event pairs, 75 based on Foata normal form. 18/514 useless extension candidates. Maximal degree in co-relation 1233. Up to 281 conditions per place. 
[2024-11-07 11:11:51,668 INFO  L140   encePairwiseOnDemand]: 29/34 looper letters, 22 selfloop transitions, 3 changer transitions 21/56 dead transitions.
[2024-11-07 11:11:51,669 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 261 flow
[2024-11-07 11:11:51,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-07 11:11:51,669 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-11-07 11:11:51,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 131 transitions.
[2024-11-07 11:11:51,671 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5504201680672269
[2024-11-07 11:11:51,671 INFO  L175             Difference]: Start difference. First operand has 46 places, 30 transitions, 95 flow. Second operand 7 states and 131 transitions.
[2024-11-07 11:11:51,671 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 261 flow
[2024-11-07 11:11:51,675 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 56 transitions, 244 flow, removed 7 selfloop flow, removed 3 redundant places.
[2024-11-07 11:11:51,678 INFO  L231             Difference]: Finished difference. Result has 48 places, 30 transitions, 105 flow
[2024-11-07 11:11:51,679 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=105, PETRI_PLACES=48, PETRI_TRANSITIONS=30}
[2024-11-07 11:11:51,679 INFO  L277   CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places.
[2024-11-07 11:11:51,679 INFO  L471      AbstractCegarLoop]: Abstraction has has 48 places, 30 transitions, 105 flow
[2024-11-07 11:11:51,680 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 11:11:51,680 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:11:51,680 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:51,680 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 11:11:51,680 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:11:51,680 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:11:51,680 INFO  L85        PathProgramCache]: Analyzing trace with hash -1928552721, now seen corresponding path program 1 times
[2024-11-07 11:11:51,681 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:11:51,681 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247704666]
[2024-11-07 11:11:51,681 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:11:51,681 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:11:51,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:11:52,172 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 11:11:52,172 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:11:52,172 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247704666]
[2024-11-07 11:11:52,172 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247704666] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:11:52,172 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:11:52,172 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-07 11:11:52,173 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048193665]
[2024-11-07 11:11:52,173 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:11:52,173 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-07 11:11:52,173 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:11:52,174 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-07 11:11:52,174 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-07 11:11:52,190 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34
[2024-11-07 11:11:52,191 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 30 transitions, 105 flow. Second operand  has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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 11:11:52,191 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:11:52,191 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34
[2024-11-07 11:11:52,191 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:11:52,546 INFO  L124   PetriNetUnfolderBase]: 233/477 cut-off events.
[2024-11-07 11:11:52,547 INFO  L125   PetriNetUnfolderBase]: For 475/475 co-relation queries the response was YES.
[2024-11-07 11:11:52,548 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1239 conditions, 477 events. 233/477 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2362 event pairs, 110 based on Foata normal form. 18/489 useless extension candidates. Maximal degree in co-relation 1220. Up to 289 conditions per place. 
[2024-11-07 11:11:52,551 INFO  L140   encePairwiseOnDemand]: 26/34 looper letters, 33 selfloop transitions, 9 changer transitions 29/81 dead transitions.
[2024-11-07 11:11:52,551 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 81 transitions, 416 flow
[2024-11-07 11:11:52,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-07 11:11:52,552 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-11-07 11:11:52,552 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 204 transitions.
[2024-11-07 11:11:52,553 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5454545454545454
[2024-11-07 11:11:52,553 INFO  L175             Difference]: Start difference. First operand has 48 places, 30 transitions, 105 flow. Second operand 11 states and 204 transitions.
[2024-11-07 11:11:52,553 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 81 transitions, 416 flow
[2024-11-07 11:11:52,560 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 81 transitions, 374 flow, removed 17 selfloop flow, removed 6 redundant places.
[2024-11-07 11:11:52,562 INFO  L231             Difference]: Finished difference. Result has 57 places, 36 transitions, 163 flow
[2024-11-07 11:11:52,562 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=163, PETRI_PLACES=57, PETRI_TRANSITIONS=36}
[2024-11-07 11:11:52,565 INFO  L277   CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places.
[2024-11-07 11:11:52,567 INFO  L471      AbstractCegarLoop]: Abstraction has has 57 places, 36 transitions, 163 flow
[2024-11-07 11:11:52,567 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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 11:11:52,567 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:11:52,567 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:52,567 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 11:11:52,568 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:11:52,568 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:11:52,568 INFO  L85        PathProgramCache]: Analyzing trace with hash 1498371259, now seen corresponding path program 1 times
[2024-11-07 11:11:52,568 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:11:52,568 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115975797]
[2024-11-07 11:11:52,568 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:11:52,568 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:11:52,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:11:52,768 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 11:11:52,768 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:11:52,768 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115975797]
[2024-11-07 11:11:52,768 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115975797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:11:52,768 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:11:52,769 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 11:11:52,769 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212634497]
[2024-11-07 11:11:52,769 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:11:52,769 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 11:11:52,769 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:11:52,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 11:11:52,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 11:11:52,780 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34
[2024-11-07 11:11:52,781 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 36 transitions, 163 flow. Second operand  has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 11:11:52,781 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:11:52,781 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34
[2024-11-07 11:11:52,781 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:11:52,958 INFO  L124   PetriNetUnfolderBase]: 155/348 cut-off events.
[2024-11-07 11:11:52,958 INFO  L125   PetriNetUnfolderBase]: For 444/448 co-relation queries the response was YES.
[2024-11-07 11:11:52,959 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 951 conditions, 348 events. 155/348 cut-off events. For 444/448 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1579 event pairs, 28 based on Foata normal form. 24/360 useless extension candidates. Maximal degree in co-relation 927. Up to 141 conditions per place. 
[2024-11-07 11:11:52,961 INFO  L140   encePairwiseOnDemand]: 29/34 looper letters, 30 selfloop transitions, 4 changer transitions 0/50 dead transitions.
[2024-11-07 11:11:52,961 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 268 flow
[2024-11-07 11:11:52,962 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 11:11:52,962 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-07 11:11:52,962 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions.
[2024-11-07 11:11:52,963 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.6911764705882353
[2024-11-07 11:11:52,963 INFO  L175             Difference]: Start difference. First operand has 57 places, 36 transitions, 163 flow. Second operand 4 states and 94 transitions.
[2024-11-07 11:11:52,963 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 268 flow
[2024-11-07 11:11:52,968 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 50 transitions, 245 flow, removed 9 selfloop flow, removed 7 redundant places.
[2024-11-07 11:11:52,969 INFO  L231             Difference]: Finished difference. Result has 49 places, 37 transitions, 157 flow
[2024-11-07 11:11:52,969 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=49, PETRI_TRANSITIONS=37}
[2024-11-07 11:11:52,969 INFO  L277   CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places.
[2024-11-07 11:11:52,969 INFO  L471      AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 157 flow
[2024-11-07 11:11:52,970 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 11:11:52,970 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:11:52,970 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:52,970 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 11:11:52,970 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:11:52,970 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:11:52,970 INFO  L85        PathProgramCache]: Analyzing trace with hash -281557732, now seen corresponding path program 1 times
[2024-11-07 11:11:52,971 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:11:52,971 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977528236]
[2024-11-07 11:11:52,971 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:11:52,971 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:11:53,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:11:53,183 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 11:11:53,183 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:11:53,184 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977528236]
[2024-11-07 11:11:53,184 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977528236] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:11:53,184 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:11:53,184 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 11:11:53,184 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919321293]
[2024-11-07 11:11:53,184 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:11:53,184 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 11:11:53,184 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:11:53,185 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 11:11:53,185 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 11:11:53,191 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34
[2024-11-07 11:11:53,192 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 157 flow. Second operand  has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 11:11:53,192 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:11:53,192 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34
[2024-11-07 11:11:53,192 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:11:53,322 INFO  L124   PetriNetUnfolderBase]: 107/248 cut-off events.
[2024-11-07 11:11:53,322 INFO  L125   PetriNetUnfolderBase]: For 217/219 co-relation queries the response was YES.
[2024-11-07 11:11:53,323 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 703 conditions, 248 events. 107/248 cut-off events. For 217/219 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 975 event pairs, 28 based on Foata normal form. 16/252 useless extension candidates. Maximal degree in co-relation 682. Up to 98 conditions per place. 
[2024-11-07 11:11:53,324 INFO  L140   encePairwiseOnDemand]: 29/34 looper letters, 27 selfloop transitions, 6 changer transitions 0/49 dead transitions.
[2024-11-07 11:11:53,324 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 49 transitions, 260 flow
[2024-11-07 11:11:53,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-07 11:11:53,325 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-07 11:11:53,325 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions.
[2024-11-07 11:11:53,326 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.6352941176470588
[2024-11-07 11:11:53,326 INFO  L175             Difference]: Start difference. First operand has 49 places, 37 transitions, 157 flow. Second operand 5 states and 108 transitions.
[2024-11-07 11:11:53,326 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 49 transitions, 260 flow
[2024-11-07 11:11:53,328 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 49 transitions, 230 flow, removed 11 selfloop flow, removed 5 redundant places.
[2024-11-07 11:11:53,329 INFO  L231             Difference]: Finished difference. Result has 50 places, 38 transitions, 161 flow
[2024-11-07 11:11:53,330 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=50, PETRI_TRANSITIONS=38}
[2024-11-07 11:11:53,331 INFO  L277   CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places.
[2024-11-07 11:11:53,331 INFO  L471      AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 161 flow
[2024-11-07 11:11:53,331 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 11:11:53,331 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:11:53,332 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:53,332 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 11:11:53,332 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:11:53,332 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:11:53,332 INFO  L85        PathProgramCache]: Analyzing trace with hash 1178590008, now seen corresponding path program 1 times
[2024-11-07 11:11:53,332 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:11:53,333 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424806887]
[2024-11-07 11:11:53,333 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:11:53,333 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:11:53,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 11:11:53,626 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 11:11:53,627 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 11:11:53,627 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424806887]
[2024-11-07 11:11:53,627 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424806887] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 11:11:53,627 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 11:11:53,627 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 11:11:53,627 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909407724]
[2024-11-07 11:11:53,627 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 11:11:53,628 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 11:11:53,628 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 11:11:53,628 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 11:11:53,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-07 11:11:53,634 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 13 out of 34
[2024-11-07 11:11:53,635 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 161 flow. Second operand  has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:11:53,635 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-07 11:11:53,635 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 34
[2024-11-07 11:11:53,635 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-07 11:11:53,827 INFO  L124   PetriNetUnfolderBase]: 138/382 cut-off events.
[2024-11-07 11:11:53,828 INFO  L125   PetriNetUnfolderBase]: For 288/302 co-relation queries the response was YES.
[2024-11-07 11:11:53,831 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 947 conditions, 382 events. 138/382 cut-off events. For 288/302 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1836 event pairs, 45 based on Foata normal form. 7/364 useless extension candidates. Maximal degree in co-relation 927. Up to 144 conditions per place. 
[2024-11-07 11:11:53,833 INFO  L140   encePairwiseOnDemand]: 29/34 looper letters, 20 selfloop transitions, 1 changer transitions 22/59 dead transitions.
[2024-11-07 11:11:53,833 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 305 flow
[2024-11-07 11:11:53,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 11:11:53,834 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-07 11:11:53,834 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions.
[2024-11-07 11:11:53,835 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5686274509803921
[2024-11-07 11:11:53,835 INFO  L175             Difference]: Start difference. First operand has 50 places, 38 transitions, 161 flow. Second operand 6 states and 116 transitions.
[2024-11-07 11:11:53,835 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 305 flow
[2024-11-07 11:11:53,836 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 296 flow, removed 2 selfloop flow, removed 2 redundant places.
[2024-11-07 11:11:53,837 INFO  L231             Difference]: Finished difference. Result has 57 places, 34 transitions, 143 flow
[2024-11-07 11:11:53,837 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=143, PETRI_PLACES=57, PETRI_TRANSITIONS=34}
[2024-11-07 11:11:53,838 INFO  L277   CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places.
[2024-11-07 11:11:53,838 INFO  L471      AbstractCegarLoop]: Abstraction has has 57 places, 34 transitions, 143 flow
[2024-11-07 11:11:53,838 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 11:11:53,838 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-07 11:11:53,838 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:53,839 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 11:11:53,839 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-07 11:11:53,839 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 11:11:53,839 INFO  L85        PathProgramCache]: Analyzing trace with hash 2052000374, now seen corresponding path program 2 times
[2024-11-07 11:11:53,839 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 11:11:53,840 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574800691]
[2024-11-07 11:11:53,840 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 11:11:53,840 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 11:11:53,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 11:11:53,881 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 11:11:53,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 11:11:53,978 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 11:11:53,979 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-11-07 11:11:53,980 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2024-11-07 11:11:53,981 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining)
[2024-11-07 11:11:53,981 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining)
[2024-11-07 11:11:53,982 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining)
[2024-11-07 11:11:53,982 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2024-11-07 11:11:53,982 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-07 11:11:53,982 INFO  L407         BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1]
[2024-11-07 11:11:54,040 INFO  L239   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-07 11:11:54,041 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 11:11:54,045 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:11:54 BasicIcfg
[2024-11-07 11:11:54,045 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 11:11:54,046 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 11:11:54,046 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-07 11:11:54,046 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-07 11:11:54,047 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:11:49" (3/4) ...
[2024-11-07 11:11:54,048 INFO  L136         WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-07 11:11:54,116 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 11:11:54,116 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 11:11:54,121 INFO  L158              Benchmark]: Toolchain (without parser) took 5997.50ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 75.5MB in the beginning and 100.1MB in the end (delta: -24.6MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB.
[2024-11-07 11:11:54,121 INFO  L158              Benchmark]: CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 11:11:54,122 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 449.94ms. Allocated memory is still 100.7MB. Free memory was 75.3MB in the beginning and 52.9MB in the end (delta: 22.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 11:11:54,122 INFO  L158              Benchmark]: Boogie Procedure Inliner took 63.41ms. Allocated memory is still 100.7MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 11:11:54,122 INFO  L158              Benchmark]: Boogie Preprocessor took 59.51ms. Allocated memory is still 100.7MB. Free memory was 50.8MB in the beginning and 48.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 11:11:54,122 INFO  L158              Benchmark]: RCFGBuilder took 739.44ms. Allocated memory is still 100.7MB. Free memory was 48.1MB in the beginning and 45.0MB in the end (delta: 3.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB.
[2024-11-07 11:11:54,122 INFO  L158              Benchmark]: TraceAbstraction took 4608.36ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 44.1MB in the beginning and 110.0MB in the end (delta: -65.9MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB.
[2024-11-07 11:11:54,123 INFO  L158              Benchmark]: Witness Printer took 70.55ms. Allocated memory is still 151.0MB. Free memory was 110.0MB in the beginning and 100.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 11:11:54,124 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 449.94ms. Allocated memory is still 100.7MB. Free memory was 75.3MB in the beginning and 52.9MB in the end (delta: 22.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 63.41ms. Allocated memory is still 100.7MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 59.51ms. Allocated memory is still 100.7MB. Free memory was 50.8MB in the beginning and 48.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 739.44ms. Allocated memory is still 100.7MB. Free memory was 48.1MB in the beginning and 45.0MB in the end (delta: 3.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB.
 * TraceAbstraction took 4608.36ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 44.1MB in the beginning and 110.0MB in the end (delta: -65.9MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB.
 * Witness Printer took 70.55ms. Allocated memory is still 151.0MB. Free memory was 110.0MB in the beginning and 100.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 19]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L709]               0  int __unbuffered_cnt = 0;
[L711]               0  int __unbuffered_p0_EAX = 0;
[L713]               0  int __unbuffered_p0_EBX = 0;
[L715]               0  int __unbuffered_p1_EAX = 0;
[L717]               0  int __unbuffered_p1_EBX = 0;
[L719]               0  int a = 0;
[L720]               0  _Bool main$tmp_guard0;
[L721]               0  _Bool main$tmp_guard1;
[L723]               0  int x = 0;
[L725]               0  int y = 0;
[L726]               0  _Bool y$flush_delayed;
[L727]               0  int y$mem_tmp;
[L728]               0  _Bool y$r_buff0_thd0;
[L729]               0  _Bool y$r_buff0_thd1;
[L730]               0  _Bool y$r_buff0_thd2;
[L731]               0  _Bool y$r_buff1_thd0;
[L732]               0  _Bool y$r_buff1_thd1;
[L733]               0  _Bool y$r_buff1_thd2;
[L734]               0  _Bool y$read_delayed;
[L735]               0  int *y$read_delayed_var;
[L736]               0  int y$w_buff0;
[L737]               0  _Bool y$w_buff0_used;
[L738]               0  int y$w_buff1;
[L739]               0  _Bool y$w_buff1_used;
[L741]               0  int z = 0;
[L742]               0  _Bool weak$$choice0;
[L743]               0  _Bool weak$$choice2;
[L823]               0  pthread_t t835;
[L824]  FCALL, FORK  0  pthread_create(&t835, ((void *)0), P0, ((void *)0))
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t835=-2, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L825]               0  pthread_t t836;
[L826]  FCALL, FORK  0  pthread_create(&t836, ((void *)0), P1, ((void *)0))
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t835=-2, t836=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L781]               2  y$w_buff1 = y$w_buff0
[L782]               2  y$w_buff0 = 1
[L783]               2  y$w_buff1_used = y$w_buff0_used
[L784]               2  y$w_buff0_used = (_Bool)1
[L785]  CALL         2  __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used))
[L19]   COND FALSE   2  !(!expression)
[L785]  RET          2  __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used))
[L786]               2  y$r_buff1_thd0 = y$r_buff0_thd0
[L787]               2  y$r_buff1_thd1 = y$r_buff0_thd1
[L788]               2  y$r_buff1_thd2 = y$r_buff0_thd2
[L789]               2  y$r_buff0_thd2 = (_Bool)1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0]
[L792]               2  z = 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L795]               2  __unbuffered_p1_EAX = z
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L798]               2  __unbuffered_p1_EBX = a
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L747]               1  a = 1
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L750]               1  x = 1
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L753]               1  __unbuffered_p0_EAX = x
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L756]               1  weak$$choice0 = __VERIFIER_nondet_bool()
[L757]               1  weak$$choice2 = __VERIFIER_nondet_bool()
[L758]               1  y$flush_delayed = weak$$choice2
[L759]               1  y$mem_tmp = y
[L760]               1  y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1)
[L761]               1  y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0))
[L762]               1  y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1))
[L763]               1  y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used))
[L764]               1  y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L765]               1  y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1))
[L766]               1  y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L767]               1  __unbuffered_p0_EBX = y
[L768]               1  y = y$flush_delayed ? y$mem_tmp : y
[L769]               1  y$flush_delayed = (_Bool)0
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L774]               1  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1]
[L801]               2  y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)
[L802]               2  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used
[L803]               2  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used
[L804]               2  y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2
[L805]               2  y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L808]               2  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L828]               0  main$tmp_guard0 = __unbuffered_cnt == 2
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t835=-2, t836=-1, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L830]  CALL         0  assume_abort_if_not(main$tmp_guard0)
[L4]    COND FALSE   0  !(!cond)
[L830]  RET          0  assume_abort_if_not(main$tmp_guard0)
[L832]               0  y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L833]               0  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L834]               0  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L835]               0  y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L836]               0  y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t835=-2, t836=-1, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L839]               0  main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0)
        VAL             [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t835=-2, t836=-1, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L841]  CALL         0  __VERIFIER_assert(main$tmp_guard1)
[L19]   COND TRUE    0  !expression
        VAL             [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]
[L19]                0  reach_error()
        VAL             [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1]

  - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable
    Unable to prove that a call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 826]: Unable to prove that petrification did provide enough thread instances (tool internal message)
    Unable to prove that petrification did provide enough thread instances (tool internal message)
 Reason: Not analyzed. 
  - UnprovableResult [Line: 824]: Unable to prove that petrification did provide enough thread instances (tool internal message)
    Unable to prove that petrification did provide enough thread instances (tool internal message)
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 5 procedures, 55 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 105 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 575 IncrementalHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 27 mSDtfsCounter, 575 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=4, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-11-07 11:11:54,156 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE