./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-time-symm.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu --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 afd4dff22cd4af07bd40593cdae3d07b68e9e49be619064a67ffd75ffa5bf4b2
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:58:12,609 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:58:12,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 07:58:12,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:58:12,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:58:12,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:58:12,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:58:12,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:58:12,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:58:12,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:58:12,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:58:12,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:58:12,734 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:58:12,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:58:12,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:58:12,736 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:58:12,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:58:12,737 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:58:12,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:58:12,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:58:12,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:58:12,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:58:12,746 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:58:12,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:58:12,747 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:58:12,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:58:12,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:58:12,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:58:12,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:58:12,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:58:12,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:58:12,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:58:12,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:58:12,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:58:12,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:58:12,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:58:12,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:58:12,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:58:12,754 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:58:12,754 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afd4dff22cd4af07bd40593cdae3d07b68e9e49be619064a67ffd75ffa5bf4b2
[2023-11-19 07:58:13,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:58:13,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:58:13,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:58:13,120 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:58:13,121 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:58:13,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-time-symm.wvr.c
[2023-11-19 07:58:16,399 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:58:16,596 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:58:16,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/sv-benchmarks/c/weaver/chl-time-symm.wvr.c
[2023-11-19 07:58:16,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/data/2767c74c6/e41d5a19b11847e3901bf3b5c39c8e44/FLAG88614d509
[2023-11-19 07:58:16,618 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/data/2767c74c6/e41d5a19b11847e3901bf3b5c39c8e44
[2023-11-19 07:58:16,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:58:16,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:58:16,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:58:16,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:58:16,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:58:16,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:16,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bda53c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16, skipping insertion in model container
[2023-11-19 07:58:16,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:16,666 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:58:16,839 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/sv-benchmarks/c/weaver/chl-time-symm.wvr.c[2520,2533]
[2023-11-19 07:58:16,847 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:58:16,865 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:58:16,901 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/sv-benchmarks/c/weaver/chl-time-symm.wvr.c[2520,2533]
[2023-11-19 07:58:16,904 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:58:16,920 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:58:16,920 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:58:16,927 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:58:16,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16 WrapperNode
[2023-11-19 07:58:16,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:58:16,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:58:16,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:58:16,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:58:16,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:16,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:16,978 INFO L138 Inliner]: procedures = 22, calls = 29, calls flagged for inlining = 9, calls inlined = 15, statements flattened = 155
[2023-11-19 07:58:16,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:58:16,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:58:16,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:58:16,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:58:16,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:16,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:16,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:16,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:17,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:17,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:17,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:17,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:17,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:58:17,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:58:17,022 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:58:17,022 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:58:17,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (1/1) ...
[2023-11-19 07:58:17,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:58:17,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:58:17,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:58:17,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:58:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:58:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2023-11-19 07:58:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2023-11-19 07:58:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2023-11-19 07:58:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2023-11-19 07:58:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:58:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:58:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:58:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-11-19 07:58:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-11-19 07:58:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:58:17,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:58:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:58:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:58:17,113 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-19 07:58:17,251 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:58:17,253 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:58:17,602 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:58:17,974 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:58:17,975 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:58:17,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:17 BoogieIcfgContainer
[2023-11-19 07:58:17,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:58:17,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:58:17,982 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:58:17,986 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:58:17,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:16" (1/3) ...
[2023-11-19 07:58:17,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7872929f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:17, skipping insertion in model container
[2023-11-19 07:58:17,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:16" (2/3) ...
[2023-11-19 07:58:17,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7872929f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:17, skipping insertion in model container
[2023-11-19 07:58:17,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:17" (3/3) ...
[2023-11-19 07:58:17,989 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-symm.wvr.c
[2023-11-19 07:58:17,999 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:58:18,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:58:18,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:58:18,012 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:58:18,075 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-11-19 07:58:18,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 86 transitions, 186 flow
[2023-11-19 07:58:18,166 INFO L124 PetriNetUnfolderBase]: 1/84 cut-off events.
[2023-11-19 07:58:18,168 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:58:18,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 84 events. 1/84 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place.
[2023-11-19 07:58:18,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 86 transitions, 186 flow
[2023-11-19 07:58:18,179 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 75 transitions, 162 flow
[2023-11-19 07:58:18,183 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:58:18,192 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 75 transitions, 162 flow
[2023-11-19 07:58:18,195 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 75 transitions, 162 flow
[2023-11-19 07:58:18,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 75 transitions, 162 flow
[2023-11-19 07:58:18,224 INFO L124 PetriNetUnfolderBase]: 1/75 cut-off events.
[2023-11-19 07:58:18,225 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:58:18,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 75 events. 1/75 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place.
[2023-11-19 07:58:18,226 INFO L119 LiptonReduction]: Number of co-enabled transitions 152
[2023-11-19 07:58:22,291 INFO L134 LiptonReduction]: Checked pairs total: 178
[2023-11-19 07:58:22,291 INFO L136 LiptonReduction]: Total number of compositions: 69
[2023-11-19 07:58:22,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:58:22,324 INFO L357 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, mHoare=true, 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;@5c3f97e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:58:22,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2023-11-19 07:58:22,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:58:22,335 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events.
[2023-11-19 07:58:22,335 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:58:22,336 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:58:22,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:22,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-11-19 07:58:22,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:22,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1396522812, now seen corresponding path program 1 times
[2023-11-19 07:58:22,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:58:22,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101993834]
[2023-11-19 07:58:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:22,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:58:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:58:23,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:58:23,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101993834]
[2023-11-19 07:58:23,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101993834] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:23,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:23,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:23,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369260321]
[2023-11-19 07:58:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:23,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:23,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:58:23,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:23,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:23,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 155
[2023-11-19 07:58:23,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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)
[2023-11-19 07:58:23,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:58:23,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 155
[2023-11-19 07:58:23,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:58:24,055 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events.
[2023-11-19 07:58:24,055 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2023-11-19 07:58:24,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 45. Up to 16 conditions per place.
[2023-11-19 07:58:24,057 INFO L140 encePairwiseOnDemand]: 152/155 looper letters, 11 selfloop transitions, 1 changer transitions 7/19 dead transitions.
[2023-11-19 07:58:24,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 97 flow
[2023-11-19 07:58:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:58:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions.
[2023-11-19 07:58:24,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45806451612903226
[2023-11-19 07:58:24,077 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 284 transitions.
[2023-11-19 07:58:24,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 284 transitions.
[2023-11-19 07:58:24,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:58:24,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 284 transitions.
[2023-11-19 07:58:24,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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)
[2023-11-19 07:58:24,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 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)
[2023-11-19 07:58:24,094 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 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)
[2023-11-19 07:58:24,096 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 4 states and 284 transitions.
[2023-11-19 07:58:24,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 97 flow
[2023-11-19 07:58:24,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 19 transitions, 83 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-11-19 07:58:24,102 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 33 flow
[2023-11-19 07:58:24,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=33, PETRI_PLACES=19, PETRI_TRANSITIONS=11}
[2023-11-19 07:58:24,109 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places.
[2023-11-19 07:58:24,109 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 33 flow
[2023-11-19 07:58:24,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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)
[2023-11-19 07:58:24,110 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:58:24,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:58:24,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:58:24,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-11-19 07:58:24,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:58:24,112 INFO L85 PathProgramCache]: Analyzing trace with hash -456710436, now seen corresponding path program 2 times
[2023-11-19 07:58:24,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:58:24,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217484281]
[2023-11-19 07:58:24,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:58:24,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:58:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:58:24,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:58:24,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:58:24,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217484281]
[2023-11-19 07:58:24,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217484281] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:58:24,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:58:24,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:58:24,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718981834]
[2023-11-19 07:58:24,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:58:24,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:58:24,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:58:24,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:58:24,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:58:24,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 155
[2023-11-19 07:58:24,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 11 transitions, 33 flow. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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)
[2023-11-19 07:58:24,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:58:24,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 155
[2023-11-19 07:58:24,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:58:24,995 INFO L124 PetriNetUnfolderBase]: 5/23 cut-off events.
[2023-11-19 07:58:24,996 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES.
[2023-11-19 07:58:24,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 23 events. 5/23 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 3 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 57. Up to 15 conditions per place.
[2023-11-19 07:58:24,997 INFO L140 encePairwiseOnDemand]: 152/155 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions.
[2023-11-19 07:58:24,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 73 flow
[2023-11-19 07:58:24,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:58:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:58:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions.
[2023-11-19 07:58:25,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45161290322580644
[2023-11-19 07:58:25,005 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 280 transitions.
[2023-11-19 07:58:25,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 280 transitions.
[2023-11-19 07:58:25,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:58:25,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 280 transitions.
[2023-11-19 07:58:25,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 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)
[2023-11-19 07:58:25,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 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)
[2023-11-19 07:58:25,017 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 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)
[2023-11-19 07:58:25,017 INFO L175 Difference]: Start difference. First operand has 19 places, 11 transitions, 33 flow. Second operand 4 states and 280 transitions.
[2023-11-19 07:58:25,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 73 flow
[2023-11-19 07:58:25,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:58:25,020 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow
[2023-11-19 07:58:25,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0}
[2023-11-19 07:58:25,022 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places.
[2023-11-19 07:58:25,022 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow
[2023-11-19 07:58:25,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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)
[2023-11-19 07:58:25,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2023-11-19 07:58:25,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining)
[2023-11-19 07:58:25,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining)
[2023-11-19 07:58:25,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:58:25,032 INFO L445 BasicCegarLoop]: Path program histogram: [2]
[2023-11-19 07:58:25,036 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-11-19 07:58:25,036 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:58:25,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:58:25 BasicIcfg
[2023-11-19 07:58:25,046 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:58:25,047 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:58:25,047 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:58:25,047 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:58:25,048 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:17" (3/4) ...
[2023-11-19 07:58:25,050 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-19 07:58:25,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2023-11-19 07:58:25,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2023-11-19 07:58:25,061 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2023-11-19 07:58:25,062 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-19 07:58:25,062 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-19 07:58:25,062 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-19 07:58:25,174 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:58:25,174 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/witness.yml
[2023-11-19 07:58:25,174 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:58:25,175 INFO L158 Benchmark]: Toolchain (without parser) took 8552.74ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 91.3MB in the beginning and 142.5MB in the end (delta: -51.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB.
[2023-11-19 07:58:25,176 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:58:25,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.93ms. Allocated memory is still 136.3MB. Free memory was 91.0MB in the beginning and 79.6MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-19 07:58:25,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.11ms. Allocated memory is still 136.3MB. Free memory was 79.6MB in the beginning and 77.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:58:25,177 INFO L158 Benchmark]: Boogie Preprocessor took 40.79ms. Allocated memory is still 136.3MB. Free memory was 77.4MB in the beginning and 76.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:58:25,177 INFO L158 Benchmark]: RCFGBuilder took 957.68ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 76.0MB in the beginning and 145.1MB in the end (delta: -69.2MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB.
[2023-11-19 07:58:25,178 INFO L158 Benchmark]: TraceAbstraction took 7064.51ms. Allocated memory is still 199.2MB. Free memory was 145.1MB in the beginning and 147.8MB in the end (delta: -2.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:58:25,178 INFO L158 Benchmark]: Witness Printer took 127.91ms. Allocated memory is still 199.2MB. Free memory was 146.7MB in the beginning and 142.5MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 07:58:25,180 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 303.93ms. Allocated memory is still 136.3MB. Free memory was 91.0MB in the beginning and 79.6MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 50.11ms. Allocated memory is still 136.3MB. Free memory was 79.6MB in the beginning and 77.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 40.79ms. Allocated memory is still 136.3MB. Free memory was 77.4MB in the beginning and 76.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 957.68ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 76.0MB in the beginning and 145.1MB in the end (delta: -69.2MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB.
* TraceAbstraction took 7064.51ms. Allocated memory is still 199.2MB. Free memory was 145.1MB in the beginning and 147.8MB in the end (delta: -2.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 127.91ms. Allocated memory is still 199.2MB. Free memory was 146.7MB in the beginning and 142.5MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 4.1s, 81 PlacesBefore, 18 PlacesAfterwards, 75 TransitionsBefore, 11 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 69 TotalNumberOfCompositions, 178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 89, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 178, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 89, unknown conditional: 0, unknown unconditional: 89] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
- PositiveResult [Line: 80]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 98 locations, 3 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: 6.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-11-19 07:58:25,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f6bbe3-81e2-4053-b19c-6280363d002e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE