./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1 --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 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 15:45:35,182 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 15:45:35,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-12-02 15:45:35,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 15:45:35,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 15:45:35,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 15:45:35,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 15:45:35,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 15:45:35,274 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 15:45:35,274 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 15:45:35,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 15:45:35,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 15:45:35,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 15:45:35,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 15:45:35,275 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 15:45:35,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 15:45:35,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 15:45:35,275 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 15:45:35,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 15:45:35,275 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 15:45:35,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 15:45:35,276 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 15:45:35,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:45:35,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:45:35,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 15:45:35,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 15:45:35,278 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 15:45:35,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 15:45:35,278 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 15:45:35,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 15:45:35,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 15:45:35,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 15:45:35,278 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1
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 -> 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8
[2024-12-02 15:45:35,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 15:45:35,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 15:45:35,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 15:45:35,526 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 15:45:35,526 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 15:45:35,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i
[2024-12-02 15:45:38,292 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/data/127702827/db238aaa220f40cb9ca4e75c4ee05b57/FLAG4ae31ed34
[2024-12-02 15:45:38,537 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 15:45:38,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i
[2024-12-02 15:45:38,552 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/data/127702827/db238aaa220f40cb9ca4e75c4ee05b57/FLAG4ae31ed34
[2024-12-02 15:45:38,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/data/127702827/db238aaa220f40cb9ca4e75c4ee05b57
[2024-12-02 15:45:38,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 15:45:38,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 15:45:38,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 15:45:38,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 15:45:38,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 15:45:38,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:38,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfc1889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38, skipping insertion in model container
[2024-12-02 15:45:38,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:38,598 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 15:45:38,871 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:45:38,883 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 15:45:38,924 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:45:38,952 INFO L204 MainTranslator]: Completed translation
[2024-12-02 15:45:38,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38 WrapperNode
[2024-12-02 15:45:38,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 15:45:38,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 15:45:38,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 15:45:38,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 15:45:38,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:38,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:38,990 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 176
[2024-12-02 15:45:38,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 15:45:38,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 15:45:38,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 15:45:38,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 15:45:38,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:38,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,017 INFO L175 MemorySlicer]: Split 16 memory accesses to 4 slices as follows [2, 6, 3, 5]. 38 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 1]. The 5 writes are split as follows [0, 2, 2, 1].
[2024-12-02 15:45:39,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,024 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 15:45:39,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 15:45:39,034 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 15:45:39,035 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 15:45:39,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (1/1) ...
[2024-12-02 15:45:39,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:45:39,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 15:45:39,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 15:45:39,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b024d1-3228-4b56-ab34-cc87599a77b4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 15:45:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 15:45:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 15:45:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 15:45:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-02 15:45:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2024-12-02 15:45:39,091 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2024-12-02 15:45:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-12-02 15:45:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 15:45:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 15:45:39,094 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-12-02 15:45:39,201 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 15:45:39,202 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 15:45:39,481 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-12-02 15:45:39,481 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 15:45:39,817 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 15:45:39,817 INFO L312 CfgBuilder]: Removed 6 assume(true) statements.
[2024-12-02 15:45:39,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:45:39 BoogieIcfgContainer
[2024-12-02 15:45:39,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 15:45:39,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 15:45:39,820 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 15:45:39,824 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 15:45:39,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:45:38" (1/3) ...
[2024-12-02 15:45:39,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6781ede5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:45:39, skipping insertion in model container
[2024-12-02 15:45:39,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:38" (2/3) ...
[2024-12-02 15:45:39,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6781ede5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:45:39, skipping insertion in model container
[2024-12-02 15:45:39,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:45:39" (3/3) ...
[2024-12-02 15:45:39,827 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i
[2024-12-02 15:45:39,840 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 15:45:39,841 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur.i that has 2 procedures, 32 locations, 1 initial locations, 3 loop locations, and 10 error locations.
[2024-12-02 15:45:39,841 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-12-02 15:45:39,901 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-12-02 15:45:39,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 36 transitions, 76 flow
[2024-12-02 15:45:39,959 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events.
[2024-12-02 15:45:39,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 15:45:39,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 4/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 63 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place.
[2024-12-02 15:45:39,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 36 transitions, 76 flow
[2024-12-02 15:45:39,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 36 transitions, 76 flow
[2024-12-02 15:45:39,974 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 15:45:39,984 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ec360c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 15:45:39,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations.
[2024-12-02 15:45:39,991 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 15:45:39,991 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events.
[2024-12-02 15:45:39,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 15:45:39,991 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:39,991 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-12-02 15:45:39,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-12-02 15:45:39,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:39,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1965377378, now seen corresponding path program 1 times
[2024-12-02 15:45:40,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:40,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794682617]
[2024-12-02 15:45:40,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:40,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:40,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:40,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:40,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794682617]
[2024-12-02 15:45:40,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794682617] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:40,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:40,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 15:45:40,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706612004]
[2024-12-02 15:45:40,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:40,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:45:40,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:40,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:45:40,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:40,604 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 36
[2024-12-02 15:45:40,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:40,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 15:45:40,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 36
[2024-12-02 15:45:40,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 15:45:40,721 INFO L124 PetriNetUnfolderBase]: 36/110 cut-off events.
[2024-12-02 15:45:40,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 15:45:40,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 110 events. 36/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 241 event pairs, 2 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 188. Up to 77 conditions per place.
[2024-12-02 15:45:40,724 INFO L140 encePairwiseOnDemand]: 24/36 looper letters, 21 selfloop transitions, 2 changer transitions 0/32 dead transitions.
[2024-12-02 15:45:40,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 32 transitions, 114 flow
[2024-12-02 15:45:40,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 15:45:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 15:45:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions.
[2024-12-02 15:45:40,737 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519
[2024-12-02 15:45:40,739 INFO L175 Difference]: Start difference. First operand has 35 places, 36 transitions, 76 flow. Second operand 3 states and 65 transitions.
[2024-12-02 15:45:40,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 32 transitions, 114 flow
[2024-12-02 15:45:40,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 114 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-02 15:45:40,747 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 76 flow
[2024-12-02 15:45:40,750 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=32, PETRI_TRANSITIONS=29}
[2024-12-02 15:45:40,753 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places.
[2024-12-02 15:45:40,754 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 76 flow
[2024-12-02 15:45:40,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:40,754 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:40,754 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-12-02 15:45:40,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 15:45:40,755 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-12-02 15:45:40,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1965352016, now seen corresponding path program 1 times
[2024-12-02 15:45:40,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:40,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883395765]
[2024-12-02 15:45:40,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 15:45:41,105 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 15:45:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 15:45:41,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 15:45:41,143 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 15:45:41,145 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining)
[2024-12-02 15:45:41,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining)
[2024-12-02 15:45:41,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining)
[2024-12-02 15:45:41,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining)
[2024-12-02 15:45:41,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 15:45:41,149 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-12-02 15:45:41,152 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-02 15:45:41,152 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-12-02 15:45:41,194 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-12-02 15:45:41,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 67 transitions, 144 flow
[2024-12-02 15:45:41,211 INFO L124 PetriNetUnfolderBase]: 8/72 cut-off events.
[2024-12-02 15:45:41,211 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-12-02 15:45:41,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 72 events. 8/72 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 199 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place.
[2024-12-02 15:45:41,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 67 transitions, 144 flow
[2024-12-02 15:45:41,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 67 transitions, 144 flow
[2024-12-02 15:45:41,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 15:45:41,215 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ec360c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 15:45:41,215 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations.
[2024-12-02 15:45:41,219 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 15:45:41,220 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events.
[2024-12-02 15:45:41,220 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-02 15:45:41,220 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:41,220 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-12-02 15:45:41,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-02 15:45:41,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:41,221 INFO L85 PathProgramCache]: Analyzing trace with hash -346574846, now seen corresponding path program 1 times
[2024-12-02 15:45:41,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:41,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655215938]
[2024-12-02 15:45:41,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:41,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:41,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:41,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655215938]
[2024-12-02 15:45:41,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655215938] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:41,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:41,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 15:45:41,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511722848]
[2024-12-02 15:45:41,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:41,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:45:41,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:41,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:45:41,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:41,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 67
[2024-12-02 15:45:41,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 67 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:41,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 15:45:41,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 67
[2024-12-02 15:45:41,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 15:45:41,906 INFO L124 PetriNetUnfolderBase]: 1282/2269 cut-off events.
[2024-12-02 15:45:41,906 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES.
[2024-12-02 15:45:41,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4339 conditions, 2269 events. 1282/2269 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 11916 event pairs, 480 based on Foata normal form. 0/1808 useless extension candidates. Maximal degree in co-relation 3771. Up to 1985 conditions per place.
[2024-12-02 15:45:41,923 INFO L140 encePairwiseOnDemand]: 45/67 looper letters, 39 selfloop transitions, 3 changer transitions 0/59 dead transitions.
[2024-12-02 15:45:41,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 217 flow
[2024-12-02 15:45:41,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 15:45:41,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 15:45:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions.
[2024-12-02 15:45:41,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6019900497512438
[2024-12-02 15:45:41,925 INFO L175 Difference]: Start difference. First operand has 64 places, 67 transitions, 144 flow. Second operand 3 states and 121 transitions.
[2024-12-02 15:45:41,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 217 flow
[2024-12-02 15:45:41,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-02 15:45:41,927 INFO L231 Difference]: Finished difference. Result has 56 places, 54 transitions, 143 flow
[2024-12-02 15:45:41,927 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=56, PETRI_TRANSITIONS=54}
[2024-12-02 15:45:41,928 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -8 predicate places.
[2024-12-02 15:45:41,928 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 143 flow
[2024-12-02 15:45:41,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:41,928 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:41,929 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:45:41,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 15:45:41,929 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-02 15:45:41,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:41,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1949046697, now seen corresponding path program 1 times
[2024-12-02 15:45:41,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:41,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196071288]
[2024-12-02 15:45:41,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:41,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:42,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:42,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196071288]
[2024-12-02 15:45:42,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196071288] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:42,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:42,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:45:42,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039062495]
[2024-12-02 15:45:42,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:42,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:45:42,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:42,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:45:42,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:45:42,405 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 67
[2024-12-02 15:45:42,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 143 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:42,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 15:45:42,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 67
[2024-12-02 15:45:42,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 15:45:42,875 INFO L124 PetriNetUnfolderBase]: 1731/3138 cut-off events.
[2024-12-02 15:45:42,875 INFO L125 PetriNetUnfolderBase]: For 168/168 co-relation queries the response was YES.
[2024-12-02 15:45:42,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6473 conditions, 3138 events. 1731/3138 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 18014 event pairs, 300 based on Foata normal form. 60/2545 useless extension candidates. Maximal degree in co-relation 5716. Up to 2312 conditions per place.
[2024-12-02 15:45:42,890 INFO L140 encePairwiseOnDemand]: 59/67 looper letters, 77 selfloop transitions, 9 changer transitions 0/101 dead transitions.
[2024-12-02 15:45:42,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 101 transitions, 448 flow
[2024-12-02 15:45:42,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 15:45:42,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 15:45:42,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 180 transitions.
[2024-12-02 15:45:42,893 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44776119402985076
[2024-12-02 15:45:42,893 INFO L175 Difference]: Start difference. First operand has 56 places, 54 transitions, 143 flow. Second operand 6 states and 180 transitions.
[2024-12-02 15:45:42,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 101 transitions, 448 flow
[2024-12-02 15:45:42,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 101 transitions, 445 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 15:45:42,896 INFO L231 Difference]: Finished difference. Result has 63 places, 60 transitions, 202 flow
[2024-12-02 15:45:42,897 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=202, PETRI_PLACES=63, PETRI_TRANSITIONS=60}
[2024-12-02 15:45:42,897 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -1 predicate places.
[2024-12-02 15:45:42,897 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 60 transitions, 202 flow
[2024-12-02 15:45:42,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:42,898 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:42,898 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1]
[2024-12-02 15:45:42,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 15:45:42,898 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-02 15:45:42,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:42,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1351417663, now seen corresponding path program 1 times
[2024-12-02 15:45:42,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:42,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105379218]
[2024-12-02 15:45:42,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:42,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 15:45:43,159 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 15:45:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 15:45:43,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 15:45:43,178 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 15:45:43,178 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining)
[2024-12-02 15:45:43,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining)
[2024-12-02 15:45:43,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining)
[2024-12-02 15:45:43,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining)
[2024-12-02 15:45:43,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining)
[2024-12-02 15:45:43,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining)
[2024-12-02 15:45:43,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining)
[2024-12-02 15:45:43,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 15:45:43,181 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-12-02 15:45:43,181 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-02 15:45:43,181 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-12-02 15:45:43,231 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-12-02 15:45:43,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 98 transitions, 214 flow
[2024-12-02 15:45:43,246 INFO L124 PetriNetUnfolderBase]: 12/106 cut-off events.
[2024-12-02 15:45:43,246 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2024-12-02 15:45:43,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 106 events. 12/106 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 369 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 93. Up to 4 conditions per place.
[2024-12-02 15:45:43,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 98 transitions, 214 flow
[2024-12-02 15:45:43,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 98 transitions, 214 flow
[2024-12-02 15:45:43,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 15:45:43,250 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ec360c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 15:45:43,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations.
[2024-12-02 15:45:43,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 15:45:43,253 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events.
[2024-12-02 15:45:43,253 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-02 15:45:43,253 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:43,253 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-12-02 15:45:43,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] ===
[2024-12-02 15:45:43,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:43,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1741469724, now seen corresponding path program 1 times
[2024-12-02 15:45:43,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:43,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730414659]
[2024-12-02 15:45:43,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:43,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:43,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:43,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730414659]
[2024-12-02 15:45:43,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730414659] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:43,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:43,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 15:45:43,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910055661]
[2024-12-02 15:45:43,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:43,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:45:43,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:43,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:45:43,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:43,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 98
[2024-12-02 15:45:43,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 98 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:43,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 15:45:43,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 98
[2024-12-02 15:45:43,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 15:45:46,863 INFO L124 PetriNetUnfolderBase]: 30591/44612 cut-off events.
[2024-12-02 15:45:46,863 INFO L125 PetriNetUnfolderBase]: For 1424/1424 co-relation queries the response was YES.
[2024-12-02 15:45:46,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87050 conditions, 44612 events. 30591/44612 cut-off events. For 1424/1424 co-relation queries the response was YES. Maximal size of possible extension queue 1099. Compared 290007 event pairs, 15869 based on Foata normal form. 0/34920 useless extension candidates. Maximal degree in co-relation 70785. Up to 41384 conditions per place.
[2024-12-02 15:45:47,091 INFO L140 encePairwiseOnDemand]: 66/98 looper letters, 57 selfloop transitions, 4 changer transitions 0/86 dead transitions.
[2024-12-02 15:45:47,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 86 transitions, 324 flow
[2024-12-02 15:45:47,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 15:45:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 15:45:47,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions.
[2024-12-02 15:45:47,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6020408163265306
[2024-12-02 15:45:47,094 INFO L175 Difference]: Start difference. First operand has 93 places, 98 transitions, 214 flow. Second operand 3 states and 177 transitions.
[2024-12-02 15:45:47,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 86 transitions, 324 flow
[2024-12-02 15:45:47,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 86 transitions, 320 flow, removed 2 selfloop flow, removed 0 redundant places.
[2024-12-02 15:45:47,098 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 210 flow
[2024-12-02 15:45:47,098 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=80, PETRI_TRANSITIONS=79}
[2024-12-02 15:45:47,099 INFO L279 CegarLoopForPetriNet]: 93 programPoint places, -13 predicate places.
[2024-12-02 15:45:47,099 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 210 flow
[2024-12-02 15:45:47,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:47,100 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:47,100 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:45:47,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 15:45:47,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] ===
[2024-12-02 15:45:47,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:47,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1484868427, now seen corresponding path program 1 times
[2024-12-02 15:45:47,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:47,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342190065]
[2024-12-02 15:45:47,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:47,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:47,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:47,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:47,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342190065]
[2024-12-02 15:45:47,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342190065] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:47,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:47,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:45:47,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420125119]
[2024-12-02 15:45:47,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:47,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:45:47,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:47,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:45:47,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:45:47,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 98
[2024-12-02 15:45:47,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:47,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 15:45:47,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 98
[2024-12-02 15:45:47,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 15:45:51,348 INFO L124 PetriNetUnfolderBase]: 38256/56843 cut-off events.
[2024-12-02 15:45:51,348 INFO L125 PetriNetUnfolderBase]: For 3107/3107 co-relation queries the response was YES.
[2024-12-02 15:45:51,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120410 conditions, 56843 events. 38256/56843 cut-off events. For 3107/3107 co-relation queries the response was YES. Maximal size of possible extension queue 1463. Compared 400067 event pairs, 11699 based on Foata normal form. 807/44959 useless extension candidates. Maximal degree in co-relation 113761. Up to 47786 conditions per place.
[2024-12-02 15:45:51,572 INFO L140 encePairwiseOnDemand]: 89/98 looper letters, 121 selfloop transitions, 12 changer transitions 0/156 dead transitions.
[2024-12-02 15:45:51,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 156 transitions, 713 flow
[2024-12-02 15:45:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 15:45:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 15:45:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 275 transitions.
[2024-12-02 15:45:51,574 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.467687074829932
[2024-12-02 15:45:51,574 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 210 flow. Second operand 6 states and 275 transitions.
[2024-12-02 15:45:51,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 156 transitions, 713 flow
[2024-12-02 15:45:51,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 156 transitions, 709 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 15:45:51,577 INFO L231 Difference]: Finished difference. Result has 87 places, 87 transitions, 289 flow
[2024-12-02 15:45:51,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=289, PETRI_PLACES=87, PETRI_TRANSITIONS=87}
[2024-12-02 15:45:51,578 INFO L279 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places.
[2024-12-02 15:45:51,578 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 87 transitions, 289 flow
[2024-12-02 15:45:51,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:51,578 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:51,578 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:45:51,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 15:45:51,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] ===
[2024-12-02 15:45:51,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash 768198650, now seen corresponding path program 1 times
[2024-12-02 15:45:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:51,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2359145]
[2024-12-02 15:45:51,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:51,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:51,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:51,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2359145]
[2024-12-02 15:45:51,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2359145] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:51,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:51,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:45:51,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465758369]
[2024-12-02 15:45:51,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:51,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:45:51,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:51,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:45:51,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:45:51,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 98
[2024-12-02 15:45:51,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 87 transitions, 289 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:51,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 15:45:51,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 98
[2024-12-02 15:45:51,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 15:45:56,746 INFO L124 PetriNetUnfolderBase]: 44552/66835 cut-off events.
[2024-12-02 15:45:56,746 INFO L125 PetriNetUnfolderBase]: For 18189/18387 co-relation queries the response was YES.
[2024-12-02 15:45:56,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151492 conditions, 66835 events. 44552/66835 cut-off events. For 18189/18387 co-relation queries the response was YES. Maximal size of possible extension queue 1682. Compared 489679 event pairs, 18002 based on Foata normal form. 864/56064 useless extension candidates. Maximal degree in co-relation 142282. Up to 56613 conditions per place.
[2024-12-02 15:45:57,018 INFO L140 encePairwiseOnDemand]: 89/98 looper letters, 127 selfloop transitions, 12 changer transitions 0/162 dead transitions.
[2024-12-02 15:45:57,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 162 transitions, 808 flow
[2024-12-02 15:45:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 15:45:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 15:45:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 273 transitions.
[2024-12-02 15:45:57,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143
[2024-12-02 15:45:57,020 INFO L175 Difference]: Start difference. First operand has 87 places, 87 transitions, 289 flow. Second operand 6 states and 273 transitions.
[2024-12-02 15:45:57,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 162 transitions, 808 flow
[2024-12-02 15:45:57,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 162 transitions, 804 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 15:45:57,040 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 376 flow
[2024-12-02 15:45:57,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=94, PETRI_TRANSITIONS=95}
[2024-12-02 15:45:57,041 INFO L279 CegarLoopForPetriNet]: 93 programPoint places, 1 predicate places.
[2024-12-02 15:45:57,041 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 376 flow
[2024-12-02 15:45:57,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:57,041 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:57,041 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1]
[2024-12-02 15:45:57,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 15:45:57,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] ===
[2024-12-02 15:45:57,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:57,042 INFO L85 PathProgramCache]: Analyzing trace with hash -189581457, now seen corresponding path program 1 times
[2024-12-02 15:45:57,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:57,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035249657]
[2024-12-02 15:45:57,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 15:45:57,369 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 15:45:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 15:45:57,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 15:45:57,381 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 15:45:57,381 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining)
[2024-12-02 15:45:57,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining)
[2024-12-02 15:45:57,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining)
[2024-12-02 15:45:57,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining)
[2024-12-02 15:45:57,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 15:45:57,384 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-12-02 15:45:57,385 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-02 15:45:57,385 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2024-12-02 15:45:57,430 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-12-02 15:45:57,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 129 transitions, 286 flow
[2024-12-02 15:45:57,440 INFO L124 PetriNetUnfolderBase]: 16/140 cut-off events.
[2024-12-02 15:45:57,440 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES.
[2024-12-02 15:45:57,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 140 events. 16/140 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 542 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 123. Up to 5 conditions per place.
[2024-12-02 15:45:57,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 129 transitions, 286 flow
[2024-12-02 15:45:57,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 129 transitions, 286 flow
[2024-12-02 15:45:57,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 15:45:57,444 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ec360c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 15:45:57,444 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations.
[2024-12-02 15:45:57,446 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 15:45:57,446 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events.
[2024-12-02 15:45:57,446 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-02 15:45:57,446 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 15:45:57,446 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-12-02 15:45:57,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] ===
[2024-12-02 15:45:57,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:57,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2075719620, now seen corresponding path program 1 times
[2024-12-02 15:45:57,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:57,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280182930]
[2024-12-02 15:45:57,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:57,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:57,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:57,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280182930]
[2024-12-02 15:45:57,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280182930] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:57,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:57,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-12-02 15:45:57,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248314857]
[2024-12-02 15:45:57,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:57,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:45:57,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:57,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:45:57,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:57,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 129
[2024-12-02 15:45:57,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 129 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:57,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 15:45:57,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 129
[2024-12-02 15:45:57,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand