./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
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_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/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_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:57:21,132 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:57:21,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-19 07:57:21,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:57:21,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:57:21,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:57:21,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:57:21,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:57:21,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:57:21,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:57:21,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:57:21,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:57:21,283 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:57:21,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:57:21,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:57:21,285 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:57:21,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:57:21,286 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:57:21,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:57:21,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:57:21,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:57:21,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:57:21,289 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:57:21,290 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:57:21,290 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:57:21,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:57:21,291 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:57:21,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:57:21,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:57:21,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:57:21,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:57:21,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:57:21,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:57:21,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:57:21,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:57:21,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:57:21,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:57:21,297 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:57:21,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:57:21,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:57:21,299 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:57:21,299 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_f61958ee-d0d8-411c-a196-df0fc8273abf/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80
[2023-11-19 07:57:21,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:57:21,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:57:21,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:57:21,630 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:57:21,631 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:57:21,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i
[2023-11-19 07:57:24,744 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:57:25,121 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:57:25,122 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i
[2023-11-19 07:57:25,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/data/650a5a928/a09bb7404af94240902d959e03be0e16/FLAG0c7e61a8a
[2023-11-19 07:57:25,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/data/650a5a928/a09bb7404af94240902d959e03be0e16
[2023-11-19 07:57:25,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:57:25,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:57:25,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:57:25,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:57:25,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:57:25,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e1b511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25, skipping insertion in model container
[2023-11-19 07:57:25,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,237 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:57:25,695 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:57:25,714 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:57:25,795 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:57:25,844 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:57:25,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25 WrapperNode
[2023-11-19 07:57:25,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:57:25,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:57:25,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:57:25,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:57:25,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,912 INFO L138 Inliner]: procedures = 172, calls = 53, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 245
[2023-11-19 07:57:25,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:57:25,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:57:25,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:57:25,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:57:25,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:57:25,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:57:25,976 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:57:25,976 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:57:25,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (1/1) ...
[2023-11-19 07:57:25,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:57:26,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:57:26,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:57:26,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f61958ee-d0d8-411c-a196-df0fc8273abf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:57:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:57:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun
[2023-11-19 07:57:26,085 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun
[2023-11-19 07:57:26,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:57:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-11-19 07:57:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:57:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:57:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun
[2023-11-19 07:57:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun
[2023-11-19 07:57:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:57:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:57:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:57:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:57:26,089 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 07:57:26,289 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:57:26,291 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:57:26,766 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:57:26,777 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:57:26,784 INFO L302 CfgBuilder]: Removed 24 assume(true) statements.
[2023-11-19 07:57:26,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:26 BoogieIcfgContainer
[2023-11-19 07:57:26,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:57:26,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:57:26,798 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:57:26,801 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:57:26,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:25" (1/3) ...
[2023-11-19 07:57:26,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b1b5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:26, skipping insertion in model container
[2023-11-19 07:57:26,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:25" (2/3) ...
[2023-11-19 07:57:26,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b1b5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:26, skipping insertion in model container
[2023-11-19 07:57:26,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:26" (3/3) ...
[2023-11-19 07:57:26,805 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i
[2023-11-19 07:57:26,814 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:57:26,825 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:57:26,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations.
[2023-11-19 07:57:26,826 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:57:26,963 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-11-19 07:57:27,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 269 transitions, 558 flow
[2023-11-19 07:57:27,300 INFO L124 PetriNetUnfolderBase]: 61/483 cut-off events.
[2023-11-19 07:57:27,300 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2023-11-19 07:57:27,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 483 events. 61/483 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2231 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 259. Up to 8 conditions per place.
[2023-11-19 07:57:27,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 240 places, 269 transitions, 558 flow
[2023-11-19 07:57:27,332 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 240 places, 269 transitions, 558 flow
[2023-11-19 07:57:27,336 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:57:27,354 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 269 transitions, 558 flow
[2023-11-19 07:57:27,358 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 269 transitions, 558 flow
[2023-11-19 07:57:27,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 269 transitions, 558 flow
[2023-11-19 07:57:27,464 INFO L124 PetriNetUnfolderBase]: 61/483 cut-off events.
[2023-11-19 07:57:27,464 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2023-11-19 07:57:27,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 483 events. 61/483 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2231 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 259. Up to 8 conditions per place.
[2023-11-19 07:57:27,500 INFO L119 LiptonReduction]: Number of co-enabled transitions 31878
[2023-11-19 07:57:34,526 INFO L134 LiptonReduction]: Checked pairs total: 51432
[2023-11-19 07:57:34,527 INFO L136 LiptonReduction]: Total number of compositions: 239
[2023-11-19 07:57:34,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:57:34,549 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;@6a87639a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:57:34,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations.
[2023-11-19 07:57:34,555 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:57:34,556 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events.
[2023-11-19 07:57:34,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:57:34,556 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:57:34,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:57:34,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] ===
[2023-11-19 07:57:34,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:57:34,562 INFO L85 PathProgramCache]: Analyzing trace with hash 33632684, now seen corresponding path program 1 times
[2023-11-19 07:57:34,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:57:34,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063118555]
[2023-11-19 07:57:34,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:57:34,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:57:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:57:34,876 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 07:57:34,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:57:34,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063118555]
[2023-11-19 07:57:34,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063118555] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:57:34,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:57:34,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:57:34,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519740605]
[2023-11-19 07:57:34,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:57:34,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:57:34,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:57:34,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:57:34,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:57:34,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 508
[2023-11-19 07:57:34,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 95 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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 07:57:34,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:57:34,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 508
[2023-11-19 07:57:34,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:57:36,531 INFO L124 PetriNetUnfolderBase]: 6674/10965 cut-off events.
[2023-11-19 07:57:36,531 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES.
[2023-11-19 07:57:36,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21135 conditions, 10965 events. 6674/10965 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 74880 event pairs, 5657 based on Foata normal form. 1528/8626 useless extension candidates. Maximal degree in co-relation 20196. Up to 10033 conditions per place.
[2023-11-19 07:57:36,625 INFO L140 encePairwiseOnDemand]: 481/508 looper letters, 75 selfloop transitions, 2 changer transitions 0/89 dead transitions.
[2023-11-19 07:57:36,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 352 flow
[2023-11-19 07:57:36,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:57:36,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:57:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 794 transitions.
[2023-11-19 07:57:36,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.520997375328084
[2023-11-19 07:57:36,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 794 transitions.
[2023-11-19 07:57:36,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 794 transitions.
[2023-11-19 07:57:36,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:57:36,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 794 transitions.
[2023-11-19 07:57:36,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 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 07:57:36,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 508.0) internal successors, (2032), 4 states have internal predecessors, (2032), 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 07:57:36,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 508.0) internal successors, (2032), 4 states have internal predecessors, (2032), 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 07:57:36,687 INFO L175 Difference]: Start difference. First operand has 72 places, 95 transitions, 210 flow. Second operand 3 states and 794 transitions.
[2023-11-19 07:57:36,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 352 flow
[2023-11-19 07:57:36,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 89 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:57:36,701 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 170 flow
[2023-11-19 07:57:36,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=73, PETRI_TRANSITIONS=71}
[2023-11-19 07:57:36,707 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places.
[2023-11-19 07:57:36,708 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 170 flow
[2023-11-19 07:57:36,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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 07:57:36,709 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:57:36,709 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-11-19 07:57:36,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:57:36,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] ===
[2023-11-19 07:57:36,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:57:36,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2038643592, now seen corresponding path program 1 times
[2023-11-19 07:57:36,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:57:36,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904414080]
[2023-11-19 07:57:36,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:57:36,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:57:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:57:36,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:57:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:57:36,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:57:36,868 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:57:36,870 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining)
[2023-11-19 07:57:36,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining)
[2023-11-19 07:57:36,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining)
[2023-11-19 07:57:36,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining)
[2023-11-19 07:57:36,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining)
[2023-11-19 07:57:36,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining)
[2023-11-19 07:57:36,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining)
[2023-11-19 07:57:36,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining)
[2023-11-19 07:57:36,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining)
[2023-11-19 07:57:36,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining)
[2023-11-19 07:57:36,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining)
[2023-11-19 07:57:36,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining)
[2023-11-19 07:57:36,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining)
[2023-11-19 07:57:36,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining)
[2023-11-19 07:57:36,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining)
[2023-11-19 07:57:36,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining)
[2023-11-19 07:57:36,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining)
[2023-11-19 07:57:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining)
[2023-11-19 07:57:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining)
[2023-11-19 07:57:36,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining)
[2023-11-19 07:57:36,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining)
[2023-11-19 07:57:36,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining)
[2023-11-19 07:57:36,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining)
[2023-11-19 07:57:36,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining)
[2023-11-19 07:57:36,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining)
[2023-11-19 07:57:36,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining)
[2023-11-19 07:57:36,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:57:36,891 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-19 07:57:36,895 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-19 07:57:36,895 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-19 07:57:37,006 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2023-11-19 07:57:37,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 429 transitions, 902 flow
[2023-11-19 07:57:37,537 INFO L124 PetriNetUnfolderBase]: 205/1444 cut-off events.
[2023-11-19 07:57:37,538 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES.
[2023-11-19 07:57:37,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1444 events. 205/1444 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9447 event pairs, 2 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 871. Up to 32 conditions per place.
[2023-11-19 07:57:37,587 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 429 transitions, 902 flow
[2023-11-19 07:57:37,626 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 429 transitions, 902 flow
[2023-11-19 07:57:37,626 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:57:37,626 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 429 transitions, 902 flow
[2023-11-19 07:57:37,632 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 429 transitions, 902 flow
[2023-11-19 07:57:37,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 429 transitions, 902 flow
[2023-11-19 07:57:38,042 INFO L124 PetriNetUnfolderBase]: 205/1444 cut-off events.
[2023-11-19 07:57:38,042 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES.
[2023-11-19 07:57:38,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1444 events. 205/1444 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9447 event pairs, 2 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 871. Up to 32 conditions per place.
[2023-11-19 07:57:38,196 INFO L119 LiptonReduction]: Number of co-enabled transitions 114268
[2023-11-19 07:57:46,924 INFO L134 LiptonReduction]: Checked pairs total: 227110
[2023-11-19 07:57:46,924 INFO L136 LiptonReduction]: Total number of compositions: 372
[2023-11-19 07:57:46,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:57:46,928 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;@6a87639a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:57:46,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations.
[2023-11-19 07:57:46,931 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:57:46,932 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events.
[2023-11-19 07:57:46,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:57:46,932 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:57:46,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:57:46,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] ===
[2023-11-19 07:57:46,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:57:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1957752419, now seen corresponding path program 1 times
[2023-11-19 07:57:46,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:57:46,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906952474]
[2023-11-19 07:57:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:57:46,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:57:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:57:46,992 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 07:57:46,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:57:46,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906952474]
[2023-11-19 07:57:46,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906952474] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:57:46,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:57:46,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:57:46,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698798660]
[2023-11-19 07:57:46,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:57:46,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:57:46,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:57:46,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:57:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:57:47,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 801
[2023-11-19 07:57:47,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 166 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 07:57:47,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:57:47,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 801
[2023-11-19 07:57:47,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand