./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/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_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/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_b06cb5e3-21a9-401b-b879-23b83583896a/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 86978482104e316c202a01b019909b1a7fe566ade6200bbc4193c078d7c086e9
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:40:32,646 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:40:32,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 07:40:32,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:40:32,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:40:32,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:40:32,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:40:32,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:40:32,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:40:32,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:40:32,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:40:32,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:40:32,850 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:40:32,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:40:32,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:40:32,853 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:40:32,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:40:32,854 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:40:32,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:40:32,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:40:32,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:40:32,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:40:32,857 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:40:32,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:40:32,860 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:40:32,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:40:32,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:40:32,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:40:32,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:40:32,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:40:32,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:40:32,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:40:32,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:40:32,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:40:32,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:40:32,867 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:40:32,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:40:32,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:40:32,867 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:40:32,868 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_b06cb5e3-21a9-401b-b879-23b83583896a/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86978482104e316c202a01b019909b1a7fe566ade6200bbc4193c078d7c086e9
[2023-11-19 07:40:33,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:40:33,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:40:33,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:40:33,322 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:40:33,323 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:40:33,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c
[2023-11-19 07:40:36,817 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:40:37,044 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:40:37,045 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c
[2023-11-19 07:40:37,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/data/fb92216cf/36ee06c0b60f4e218665a025942403e7/FLAGb026b1de2
[2023-11-19 07:40:37,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/data/fb92216cf/36ee06c0b60f4e218665a025942403e7
[2023-11-19 07:40:37,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:40:37,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:40:37,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:40:37,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:40:37,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:40:37,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d9e0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37, skipping insertion in model container
[2023-11-19 07:40:37,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,107 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:40:37,281 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_b06cb5e3-21a9-401b-b879-23b83583896a/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c[2329,2342]
[2023-11-19 07:40:37,289 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:40:37,301 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:40:37,324 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_b06cb5e3-21a9-401b-b879-23b83583896a/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c[2329,2342]
[2023-11-19 07:40:37,327 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:40:37,343 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:40:37,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37 WrapperNode
[2023-11-19 07:40:37,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:40:37,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:40:37,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:40:37,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:40:37,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,394 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 127
[2023-11-19 07:40:37,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:40:37,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:40:37,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:40:37,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:40:37,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,415 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:40:37,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:40:37,425 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:40:37,425 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:40:37,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (1/1) ...
[2023-11-19 07:40:37,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:40:37,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:40:37,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:40:37,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:40:37,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:40:37,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2023-11-19 07:40:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2023-11-19 07:40:37,507 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2023-11-19 07:40:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2023-11-19 07:40:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:40:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:40:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:40:37,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:40:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:40:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:40:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:40:37,510 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 07:40:37,661 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:40:37,663 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:40:38,081 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:40:38,097 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:40:38,097 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:40:38,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:38 BoogieIcfgContainer
[2023-11-19 07:40:38,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:40:38,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:40:38,113 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:40:38,116 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:40:38,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:37" (1/3) ...
[2023-11-19 07:40:38,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a63b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:38, skipping insertion in model container
[2023-11-19 07:40:38,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:37" (2/3) ...
[2023-11-19 07:40:38,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a63b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:38, skipping insertion in model container
[2023-11-19 07:40:38,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:38" (3/3) ...
[2023-11-19 07:40:38,122 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c
[2023-11-19 07:40:38,135 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:40:38,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:40:38,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:40:38,148 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:40:38,270 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-11-19 07:40:38,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 168 transitions, 350 flow
[2023-11-19 07:40:38,409 INFO L124 PetriNetUnfolderBase]: 11/166 cut-off events.
[2023-11-19 07:40:38,409 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:40:38,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 166 events. 11/166 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 246 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place.
[2023-11-19 07:40:38,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 168 transitions, 350 flow
[2023-11-19 07:40:38,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 157 transitions, 326 flow
[2023-11-19 07:40:38,430 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:40:38,441 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 157 transitions, 326 flow
[2023-11-19 07:40:38,444 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 157 transitions, 326 flow
[2023-11-19 07:40:38,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 157 transitions, 326 flow
[2023-11-19 07:40:38,497 INFO L124 PetriNetUnfolderBase]: 11/157 cut-off events.
[2023-11-19 07:40:38,498 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:40:38,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 11/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 248 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place.
[2023-11-19 07:40:38,505 INFO L119 LiptonReduction]: Number of co-enabled transitions 4592
[2023-11-19 07:40:44,215 INFO L134 LiptonReduction]: Checked pairs total: 4380
[2023-11-19 07:40:44,215 INFO L136 LiptonReduction]: Total number of compositions: 197
[2023-11-19 07:40:44,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:40:44,259 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;@666ec73c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:40:44,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2023-11-19 07:40:44,266 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:40:44,266 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events.
[2023-11-19 07:40:44,266 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:40:44,267 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:44,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:44,268 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 07:40:44,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:44,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1496801828, now seen corresponding path program 1 times
[2023-11-19 07:40:44,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:44,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408568299]
[2023-11-19 07:40:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:44,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:45,520 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 07:40:45,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:45,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408568299]
[2023-11-19 07:40:45,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408568299] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:45,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:45,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:40:45,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130030071]
[2023-11-19 07:40:45,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:45,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:40:45,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:45,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:40:45,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:40:45,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 365
[2023-11-19 07:40:45,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 07:40:45,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:45,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 365
[2023-11-19 07:40:45,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:45,805 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events.
[2023-11-19 07:40:45,806 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2023-11-19 07:40:45,806 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 53 event pairs, 0 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 07:40:45,807 INFO L140 encePairwiseOnDemand]: 361/365 looper letters, 10 selfloop transitions, 3 changer transitions 8/21 dead transitions.
[2023-11-19 07:40:45,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 105 flow
[2023-11-19 07:40:45,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:40:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-19 07:40:45,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 742 transitions.
[2023-11-19 07:40:45,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40657534246575344
[2023-11-19 07:40:45,829 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 742 transitions.
[2023-11-19 07:40:45,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 742 transitions.
[2023-11-19 07:40:45,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:45,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 742 transitions.
[2023-11-19 07:40:45,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.4) internal successors, (742), 5 states have internal predecessors, (742), 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 07:40:45,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 365.0) internal successors, (2190), 6 states have internal predecessors, (2190), 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 07:40:45,857 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 365.0) internal successors, (2190), 6 states have internal predecessors, (2190), 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 07:40:45,859 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 5 states and 742 transitions.
[2023-11-19 07:40:45,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 105 flow
[2023-11-19 07:40:45,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 21 transitions, 91 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-11-19 07:40:45,864 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 34 flow
[2023-11-19 07:40:45,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=34, PETRI_PLACES=19, PETRI_TRANSITIONS=11}
[2023-11-19 07:40:45,870 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places.
[2023-11-19 07:40:45,870 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 34 flow
[2023-11-19 07:40:45,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 07:40:45,871 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:45,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:45,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:40:45,872 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 07:40:45,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:45,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1742388178, now seen corresponding path program 2 times
[2023-11-19 07:40:45,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:45,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954336860]
[2023-11-19 07:40:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:46,466 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 07:40:46,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:46,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954336860]
[2023-11-19 07:40:46,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954336860] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:46,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:46,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:40:46,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463885192]
[2023-11-19 07:40:46,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:46,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:40:46,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:46,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:40:46,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:40:46,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 365
[2023-11-19 07:40:46,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 07:40:46,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:46,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 365
[2023-11-19 07:40:46,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:46,671 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events.
[2023-11-19 07:40:46,671 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:40:46,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 14 events. 2/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 35. Up to 6 conditions per place.
[2023-11-19 07:40:46,672 INFO L140 encePairwiseOnDemand]: 361/365 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions.
[2023-11-19 07:40:46,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 12 transitions, 58 flow
[2023-11-19 07:40:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:40:46,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-19 07:40:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 733 transitions.
[2023-11-19 07:40:46,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40164383561643835
[2023-11-19 07:40:46,677 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 733 transitions.
[2023-11-19 07:40:46,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 733 transitions.
[2023-11-19 07:40:46,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:46,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 733 transitions.
[2023-11-19 07:40:46,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 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 07:40:46,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 365.0) internal successors, (2190), 6 states have internal predecessors, (2190), 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 07:40:46,688 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 365.0) internal successors, (2190), 6 states have internal predecessors, (2190), 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 07:40:46,688 INFO L175 Difference]: Start difference. First operand has 19 places, 11 transitions, 34 flow. Second operand 5 states and 733 transitions.
[2023-11-19 07:40:46,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 12 transitions, 58 flow
[2023-11-19 07:40:46,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 12 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:40:46,689 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow
[2023-11-19 07:40:46,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, 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=5, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0}
[2023-11-19 07:40:46,691 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places.
[2023-11-19 07:40:46,691 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow
[2023-11-19 07:40:46,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 07:40:46,695 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2023-11-19 07:40:46,695 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining)
[2023-11-19 07:40:46,696 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining)
[2023-11-19 07:40:46,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:40:46,696 INFO L445 BasicCegarLoop]: Path program histogram: [2]
[2023-11-19 07:40:46,700 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-11-19 07:40:46,700 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:40:46,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:40:46 BasicIcfg
[2023-11-19 07:40:46,705 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:40:46,706 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:40:46,706 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:40:46,706 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:40:46,707 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:38" (3/4) ...
[2023-11-19 07:40:46,709 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-19 07:40:46,713 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2023-11-19 07:40:46,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2023-11-19 07:40:46,722 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges
[2023-11-19 07:40:46,723 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-19 07:40:46,723 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-19 07:40:46,723 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-19 07:40:46,839 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:40:46,840 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/witness.yml
[2023-11-19 07:40:46,840 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:40:46,841 INFO L158 Benchmark]: Toolchain (without parser) took 9767.91ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 80.2MB in the beginning and 78.5MB in the end (delta: 1.8MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB.
[2023-11-19 07:40:46,844 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 123.7MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:40:46,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.36ms. Allocated memory is still 123.7MB. Free memory was 80.2MB in the beginning and 68.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-19 07:40:46,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.85ms. Allocated memory is still 123.7MB. Free memory was 68.9MB in the beginning and 67.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:40:46,845 INFO L158 Benchmark]: Boogie Preprocessor took 28.79ms. Allocated memory is still 123.7MB. Free memory was 67.2MB in the beginning and 65.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:40:46,845 INFO L158 Benchmark]: RCFGBuilder took 682.05ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 65.5MB in the beginning and 150.4MB in the end (delta: -84.9MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB.
[2023-11-19 07:40:46,846 INFO L158 Benchmark]: TraceAbstraction took 8593.11ms. Allocated memory is still 182.5MB. Free memory was 149.4MB in the beginning and 82.7MB in the end (delta: 66.8MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB.
[2023-11-19 07:40:46,846 INFO L158 Benchmark]: Witness Printer took 134.35ms. Allocated memory is still 182.5MB. Free memory was 82.7MB in the beginning and 78.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 07:40:46,848 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.41ms. Allocated memory is still 123.7MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 270.36ms. Allocated memory is still 123.7MB. Free memory was 80.2MB in the beginning and 68.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 48.85ms. Allocated memory is still 123.7MB. Free memory was 68.9MB in the beginning and 67.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 28.79ms. Allocated memory is still 123.7MB. Free memory was 67.2MB in the beginning and 65.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 682.05ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 65.5MB in the beginning and 150.4MB in the end (delta: -84.9MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 8593.11ms. Allocated memory is still 182.5MB. Free memory was 149.4MB in the beginning and 82.7MB in the end (delta: 66.8MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB.
* Witness Printer took 134.35ms. Allocated memory is still 182.5MB. Free memory was 82.7MB in the beginning and 78.5MB in the end (delta: 4.2MB). 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: 5.8s, 153 PlacesBefore, 18 PlacesAfterwards, 157 TransitionsBefore, 11 TransitionsAfterwards, 4592 CoEnabledTransitionPairs, 7 FixpointIterations, 60 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 37 ConcurrentYvCompositions, 11 ChoiceCompositions, 197 TotalNumberOfCompositions, 4380 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4380, independent: 4380, independent conditional: 0, independent unconditional: 4380, 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: 2909, independent: 2909, independent conditional: 0, independent unconditional: 2909, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4380, independent: 1471, independent conditional: 0, independent unconditional: 1471, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2909, unknown conditional: 0, unknown unconditional: 2909] , 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: 72]: 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, 236 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: 8.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 176 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: 10, 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, 1.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 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 07:40:46,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b06cb5e3-21a9-401b-b879-23b83583896a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE