./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 0e0057cc
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_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme --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 ef25c7a0ca5d95f3b469f57ad040cab1f4feb185ac5183a687b70f186e65f8f6
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 11:59:52,041 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-26 11:59:52,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-26 11:59:52,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 11:59:52,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 11:59:52,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 11:59:52,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 11:59:52,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 11:59:52,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 11:59:52,208 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-26 11:59:52,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 11:59:52,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 11:59:52,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 11:59:52,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-26 11:59:52,212 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-26 11:59:52,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 11:59:52,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-26 11:59:52,213 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-26 11:59:52,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-26 11:59:52,214 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-26 11:59:52,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-26 11:59:52,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-26 11:59:52,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 11:59:52,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-26 11:59:52,216 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-26 11:59:52,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-26 11:59:52,217 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-26 11:59:52,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-26 11:59:52,217 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-26 11:59:52,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 11:59:52,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-26 11:59:52,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 11:59:52,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-26 11:59:52,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:59:52,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 11:59:52,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 11:59:52,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-26 11:59:52,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-26 11:59:52,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-26 11:59:52,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 11:59:52,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 11:59:52,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-26 11:59:52,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 11:59:52,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 11:59:52,223 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_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef25c7a0ca5d95f3b469f57ad040cab1f4feb185ac5183a687b70f186e65f8f6
[2023-11-26 11:59:52,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 11:59:52,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 11:59:52,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 11:59:52,570 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-26 11:59:52,570 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-26 11:59:52,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i
[2023-11-26 11:59:55,724 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-26 11:59:56,062 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-26 11:59:56,063 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i
[2023-11-26 11:59:56,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/data/6e4fc6eb5/8c32a6ef24c943eb856503ed09f846a4/FLAGa9d7c2497
[2023-11-26 11:59:56,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/data/6e4fc6eb5/8c32a6ef24c943eb856503ed09f846a4
[2023-11-26 11:59:56,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 11:59:56,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 11:59:56,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 11:59:56,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 11:59:56,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 11:59:56,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f48012c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56, skipping insertion in model container
[2023-11-26 11:59:56,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,159 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-26 11:59:56,563 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:59:56,582 INFO L202 MainTranslator]: Completed pre-run
[2023-11-26 11:59:56,652 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:59:56,699 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 11:59:56,699 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 11:59:56,707 INFO L206 MainTranslator]: Completed translation
[2023-11-26 11:59:56,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56 WrapperNode
[2023-11-26 11:59:56,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 11:59:56,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-26 11:59:56,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-26 11:59:56,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-26 11:59:56,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,798 INFO L138 Inliner]: procedures = 179, calls = 37, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 187
[2023-11-26 11:59:56,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-26 11:59:56,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-26 11:59:56,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-26 11:59:56,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-26 11:59:56,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,864 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 1, 16]. 84 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 2]. The 8 writes are split as follows [0, 1, 7].
[2023-11-26 11:59:56,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-26 11:59:56,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-26 11:59:56,915 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-26 11:59:56,915 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-26 11:59:56,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (1/1) ...
[2023-11-26 11:59:56,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:59:56,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:59:56,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-26 11:59:56,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85988b52-fc73-4e46-9783-5b68dfff6425/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-26 11:59:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2023-11-26 11:59:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2023-11-26 11:59:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2023-11-26 11:59:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2023-11-26 11:59:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2023-11-26 11:59:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2023-11-26 11:59:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2023-11-26 11:59:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2023-11-26 11:59:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-11-26 11:59:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-26 11:59:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-26 11:59:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-26 11:59:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-26 11:59:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-11-26 11:59:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2023-11-26 11:59:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-11-26 11:59:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-26 11:59:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-26 11:59:57,001 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-26 11:59:57,206 INFO L241 CfgBuilder]: Building ICFG
[2023-11-26 11:59:57,207 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-26 11:59:57,586 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-26 11:59:57,864 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-26 11:59:57,865 INFO L309 CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-26 11:59:57,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:57 BoogieIcfgContainer
[2023-11-26 11:59:57,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-26 11:59:57,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-26 11:59:57,884 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-26 11:59:57,887 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-26 11:59:57,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:59:56" (1/3) ...
[2023-11-26 11:59:57,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393f60ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:57, skipping insertion in model container
[2023-11-26 11:59:57,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:56" (2/3) ...
[2023-11-26 11:59:57,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393f60ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:57, skipping insertion in model container
[2023-11-26 11:59:57,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:57" (3/3) ...
[2023-11-26 11:59:57,890 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longest-1.i
[2023-11-26 11:59:57,899 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-26 11:59:57,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-26 11:59:57,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations.
[2023-11-26 11:59:57,907 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-26 11:59:57,961 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-26 11:59:57,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 52 transitions, 108 flow
[2023-11-26 11:59:58,064 INFO L124 PetriNetUnfolderBase]: 4/54 cut-off events.
[2023-11-26 11:59:58,065 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-26 11:59:58,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 54 events. 4/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place.
[2023-11-26 11:59:58,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 52 transitions, 108 flow
[2023-11-26 11:59:58,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 52 transitions, 108 flow
[2023-11-26 11:59:58,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 11:59:58,088 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;@3e505cff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 11:59:58,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations.
[2023-11-26 11:59:58,093 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-26 11:59:58,093 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events.
[2023-11-26 11:59:58,094 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-26 11:59:58,094 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:59:58,094 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-11-26 11:59:58,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2023-11-26 11:59:58,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:58,100 INFO L85 PathProgramCache]: Analyzing trace with hash 908348422, now seen corresponding path program 1 times
[2023-11-26 11:59:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888267746]
[2023-11-26 11:59:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:58,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-26 11:59:58,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-26 11:59:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-26 11:59:58,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-26 11:59:58,312 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-26 11:59:58,313 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining)
[2023-11-26 11:59:58,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining)
[2023-11-26 11:59:58,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining)
[2023-11-26 11:59:58,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining)
[2023-11-26 11:59:58,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining)
[2023-11-26 11:59:58,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining)
[2023-11-26 11:59:58,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining)
[2023-11-26 11:59:58,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining)
[2023-11-26 11:59:58,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining)
[2023-11-26 11:59:58,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining)
[2023-11-26 11:59:58,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining)
[2023-11-26 11:59:58,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining)
[2023-11-26 11:59:58,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining)
[2023-11-26 11:59:58,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining)
[2023-11-26 11:59:58,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining)
[2023-11-26 11:59:58,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining)
[2023-11-26 11:59:58,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining)
[2023-11-26 11:59:58,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining)
[2023-11-26 11:59:58,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining)
[2023-11-26 11:59:58,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining)
[2023-11-26 11:59:58,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining)
[2023-11-26 11:59:58,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-26 11:59:58,321 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-26 11:59:58,324 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-26 11:59:58,325 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-26 11:59:58,379 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-26 11:59:58,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 99 transitions, 208 flow
[2023-11-26 11:59:58,433 INFO L124 PetriNetUnfolderBase]: 8/104 cut-off events.
[2023-11-26 11:59:58,434 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-26 11:59:58,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 104 events. 8/104 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 234 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 95. Up to 3 conditions per place.
[2023-11-26 11:59:58,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 99 transitions, 208 flow
[2023-11-26 11:59:58,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 99 transitions, 208 flow
[2023-11-26 11:59:58,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 11:59:58,455 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;@3e505cff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 11:59:58,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations.
[2023-11-26 11:59:58,465 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-26 11:59:58,465 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events.
[2023-11-26 11:59:58,465 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-26 11:59:58,465 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:59:58,466 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1]
[2023-11-26 11:59:58,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2023-11-26 11:59:58,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1316134273, now seen corresponding path program 1 times
[2023-11-26 11:59:58,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:58,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642738954]
[2023-11-26 11:59:58,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:58,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-26 11:59:58,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-26 11:59:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-26 11:59:58,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-26 11:59:58,571 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-26 11:59:58,571 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining)
[2023-11-26 11:59:58,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining)
[2023-11-26 11:59:58,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining)
[2023-11-26 11:59:58,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining)
[2023-11-26 11:59:58,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining)
[2023-11-26 11:59:58,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining)
[2023-11-26 11:59:58,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining)
[2023-11-26 11:59:58,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining)
[2023-11-26 11:59:58,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining)
[2023-11-26 11:59:58,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining)
[2023-11-26 11:59:58,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining)
[2023-11-26 11:59:58,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining)
[2023-11-26 11:59:58,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining)
[2023-11-26 11:59:58,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining)
[2023-11-26 11:59:58,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining)
[2023-11-26 11:59:58,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining)
[2023-11-26 11:59:58,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining)
[2023-11-26 11:59:58,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining)
[2023-11-26 11:59:58,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining)
[2023-11-26 11:59:58,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining)
[2023-11-26 11:59:58,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining)
[2023-11-26 11:59:58,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining)
[2023-11-26 11:59:58,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining)
[2023-11-26 11:59:58,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining)
[2023-11-26 11:59:58,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining)
[2023-11-26 11:59:58,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining)
[2023-11-26 11:59:58,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining)
[2023-11-26 11:59:58,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining)
[2023-11-26 11:59:58,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining)
[2023-11-26 11:59:58,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining)
[2023-11-26 11:59:58,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining)
[2023-11-26 11:59:58,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-26 11:59:58,589 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-26 11:59:58,590 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-26 11:59:58,590 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-11-26 11:59:58,685 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-26 11:59:58,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 146 transitions, 310 flow
[2023-11-26 11:59:58,731 INFO L124 PetriNetUnfolderBase]: 12/154 cut-off events.
[2023-11-26 11:59:58,732 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2023-11-26 11:59:58,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 12/154 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 502 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place.
[2023-11-26 11:59:58,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 146 transitions, 310 flow
[2023-11-26 11:59:58,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 146 transitions, 310 flow
[2023-11-26 11:59:58,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 11:59:58,766 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;@3e505cff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 11:59:58,766 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations.
[2023-11-26 11:59:58,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-26 11:59:58,777 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events.
[2023-11-26 11:59:58,777 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2023-11-26 11:59:58,777 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:59:58,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:59:58,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] ===
[2023-11-26 11:59:58,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:58,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1208983125, now seen corresponding path program 1 times
[2023-11-26 11:59:58,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:58,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758587936]
[2023-11-26 11:59:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:58,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:59:58,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:58,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758587936]
[2023-11-26 11:59:58,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758587936] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:58,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:59:58,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-26 11:59:58,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903871589]
[2023-11-26 11:59:58,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:58,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:59:59,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:59,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:59:59,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:59:59,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 146
[2023-11-26 11:59:59,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 146 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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)
[2023-11-26 11:59:59,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 11:59:59,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 146
[2023-11-26 11:59:59,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-26 12:00:18,635 INFO L124 PetriNetUnfolderBase]: 102432/174539 cut-off events.
[2023-11-26 12:00:18,635 INFO L125 PetriNetUnfolderBase]: For 3092/3092 co-relation queries the response was YES.
[2023-11-26 12:00:18,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310840 conditions, 174539 events. 102432/174539 cut-off events. For 3092/3092 co-relation queries the response was YES. Maximal size of possible extension queue 4415. Compared 1761788 event pairs, 88956 based on Foata normal form. 13596/169169 useless extension candidates. Maximal degree in co-relation 236284. Up to 134240 conditions per place.
[2023-11-26 12:00:19,972 INFO L140 encePairwiseOnDemand]: 132/146 looper letters, 74 selfloop transitions, 1 changer transitions 0/133 dead transitions.
[2023-11-26 12:00:19,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 133 transitions, 434 flow
[2023-11-26 12:00:19,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-26 12:00:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-26 12:00:19,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions.
[2023-11-26 12:00:19,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5981735159817352
[2023-11-26 12:00:19,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions.
[2023-11-26 12:00:19,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions.
[2023-11-26 12:00:19,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-26 12:00:19,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions.
[2023-11-26 12:00:20,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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)
[2023-11-26 12:00:20,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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)
[2023-11-26 12:00:20,009 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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)
[2023-11-26 12:00:20,012 INFO L175 Difference]: Start difference. First operand has 141 places, 146 transitions, 310 flow. Second operand 3 states and 262 transitions.
[2023-11-26 12:00:20,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 133 transitions, 434 flow
[2023-11-26 12:00:20,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 133 transitions, 432 flow, removed 1 selfloop flow, removed 0 redundant places.
[2023-11-26 12:00:20,034 INFO L231 Difference]: Finished difference. Result has 133 places, 133 transitions, 284 flow
[2023-11-26 12:00:20,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=133, PETRI_TRANSITIONS=133}
[2023-11-26 12:00:20,042 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -8 predicate places.
[2023-11-26 12:00:20,042 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 133 transitions, 284 flow
[2023-11-26 12:00:20,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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)
[2023-11-26 12:00:20,043 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 12:00:20,044 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1]
[2023-11-26 12:00:20,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-26 12:00:20,045 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] ===
[2023-11-26 12:00:20,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:00:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash -191019995, now seen corresponding path program 1 times
[2023-11-26 12:00:20,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:00:20,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383961935]
[2023-11-26 12:00:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:20,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:00:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-26 12:00:20,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-26 12:00:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-26 12:00:20,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-26 12:00:20,126 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-26 12:00:20,126 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining)
[2023-11-26 12:00:20,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining)
[2023-11-26 12:00:20,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining)
[2023-11-26 12:00:20,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining)
[2023-11-26 12:00:20,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining)
[2023-11-26 12:00:20,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining)
[2023-11-26 12:00:20,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining)
[2023-11-26 12:00:20,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining)
[2023-11-26 12:00:20,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining)
[2023-11-26 12:00:20,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining)
[2023-11-26 12:00:20,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining)
[2023-11-26 12:00:20,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining)
[2023-11-26 12:00:20,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining)
[2023-11-26 12:00:20,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining)
[2023-11-26 12:00:20,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining)
[2023-11-26 12:00:20,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining)
[2023-11-26 12:00:20,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining)
[2023-11-26 12:00:20,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining)
[2023-11-26 12:00:20,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining)
[2023-11-26 12:00:20,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining)
[2023-11-26 12:00:20,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining)
[2023-11-26 12:00:20,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining)
[2023-11-26 12:00:20,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 41 remaining)
[2023-11-26 12:00:20,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 41 remaining)
[2023-11-26 12:00:20,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 41 remaining)
[2023-11-26 12:00:20,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining)
[2023-11-26 12:00:20,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining)
[2023-11-26 12:00:20,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining)
[2023-11-26 12:00:20,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining)
[2023-11-26 12:00:20,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining)
[2023-11-26 12:00:20,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining)
[2023-11-26 12:00:20,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining)
[2023-11-26 12:00:20,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining)
[2023-11-26 12:00:20,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining)
[2023-11-26 12:00:20,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining)
[2023-11-26 12:00:20,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining)
[2023-11-26 12:00:20,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining)
[2023-11-26 12:00:20,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining)
[2023-11-26 12:00:20,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining)
[2023-11-26 12:00:20,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining)
[2023-11-26 12:00:20,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining)
[2023-11-26 12:00:20,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-26 12:00:20,136 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-26 12:00:20,136 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-26 12:00:20,137 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-11-26 12:00:20,241 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-26 12:00:20,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 193 transitions, 414 flow
[2023-11-26 12:00:20,285 INFO L124 PetriNetUnfolderBase]: 16/204 cut-off events.
[2023-11-26 12:00:20,286 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES.
[2023-11-26 12:00:20,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 204 events. 16/204 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 789 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 187. Up to 5 conditions per place.
[2023-11-26 12:00:20,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 193 transitions, 414 flow
[2023-11-26 12:00:20,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 193 transitions, 414 flow
[2023-11-26 12:00:20,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 12:00:20,296 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;@3e505cff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 12:00:20,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations.
[2023-11-26 12:00:20,302 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-26 12:00:20,302 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events.
[2023-11-26 12:00:20,302 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES.
[2023-11-26 12:00:20,303 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 12:00:20,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 12:00:20,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] ===
[2023-11-26 12:00:20,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:00:20,304 INFO L85 PathProgramCache]: Analyzing trace with hash -713755691, now seen corresponding path program 1 times
[2023-11-26 12:00:20,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:00:20,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801971168]
[2023-11-26 12:00:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:20,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:00:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 12:00:20,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:00:20,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801971168]
[2023-11-26 12:00:20,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801971168] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:00:20,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:00:20,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-26 12:00:20,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328457473]
[2023-11-26 12:00:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:00:20,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 12:00:20,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:00:20,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 12:00:20,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 12:00:20,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 193
[2023-11-26 12:00:20,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 193 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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)
[2023-11-26 12:00:20,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 12:00:20,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 193
[2023-11-26 12:00:20,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand