./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 38b53e6a
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --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 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-38b53e6
[2022-11-25 17:28:06,750 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-25 17:28:06,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-25 17:28:06,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-25 17:28:06,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-25 17:28:06,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-25 17:28:06,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-25 17:28:06,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-25 17:28:06,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-25 17:28:06,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-25 17:28:06,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-25 17:28:06,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-25 17:28:06,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-25 17:28:06,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-25 17:28:06,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-25 17:28:06,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-25 17:28:06,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-25 17:28:06,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-25 17:28:06,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-25 17:28:06,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-25 17:28:06,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-25 17:28:06,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-25 17:28:06,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-25 17:28:06,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-25 17:28:06,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-25 17:28:06,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-25 17:28:06,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-25 17:28:06,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-25 17:28:06,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-25 17:28:06,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-25 17:28:06,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-25 17:28:06,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-25 17:28:06,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-25 17:28:06,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-25 17:28:06,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-25 17:28:06,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-25 17:28:06,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-25 17:28:06,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-25 17:28:06,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-25 17:28:06,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-25 17:28:06,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-25 17:28:06,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2022-11-25 17:28:06,880 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-25 17:28:06,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-25 17:28:06,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-25 17:28:06,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-25 17:28:06,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-25 17:28:06,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-25 17:28:06,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-25 17:28:06,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-25 17:28:06,886 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-25 17:28:06,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-25 17:28:06,887 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-25 17:28:06,887 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-25 17:28:06,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-25 17:28:06,888 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-25 17:28:06,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-25 17:28:06,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-25 17:28:06,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-25 17:28:06,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-25 17:28:06,889 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true
[2022-11-25 17:28:06,889 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-25 17:28:06,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-25 17:28:06,890 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-25 17:28:06,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-25 17:28:06,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-25 17:28:06,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-25 17:28:06,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-25 17:28:06,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-25 17:28:06,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-25 17:28:06,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-25 17:28:06,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-25 17:28:06,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-25 17:28:06,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-25 17:28:06,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-25 17:28:06,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-25 17:28:06,894 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2022-11-25 17:28:06,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-25 17:28:06,894 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38
[2022-11-25 17:28:07,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-25 17:28:07,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-25 17:28:07,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-25 17:28:07,298 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-25 17:28:07,298 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-25 17:28:07,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i
[2022-11-25 17:28:10,985 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-25 17:28:11,471 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-25 17:28:11,478 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i
[2022-11-25 17:28:11,504 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/data/c4af44c6c/179a9254ebf74432a66eaa4dd4fea04e/FLAGa6cdfcd7c
[2022-11-25 17:28:11,524 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/data/c4af44c6c/179a9254ebf74432a66eaa4dd4fea04e
[2022-11-25 17:28:11,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-25 17:28:11,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-25 17:28:11,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-25 17:28:11,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-25 17:28:11,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-25 17:28:11,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:28:11" (1/1) ...
[2022-11-25 17:28:11,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36dd9f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:11, skipping insertion in model container
[2022-11-25 17:28:11,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:28:11" (1/1) ...
[2022-11-25 17:28:11,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-25 17:28:11,625 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-25 17:28:12,391 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i[39757,39770]
[2022-11-25 17:28:12,395 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-25 17:28:12,425 INFO L203 MainTranslator]: Completed pre-run
[2022-11-25 17:28:12,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i[39757,39770]
[2022-11-25 17:28:12,519 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-25 17:28:12,581 INFO L208 MainTranslator]: Completed translation
[2022-11-25 17:28:12,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12 WrapperNode
[2022-11-25 17:28:12,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-25 17:28:12,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-25 17:28:12,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-25 17:28:12,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-25 17:28:12,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,682 INFO L138 Inliner]: procedures = 243, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81
[2022-11-25 17:28:12,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-25 17:28:12,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-25 17:28:12,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-25 17:28:12,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-25 17:28:12,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-25 17:28:12,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-25 17:28:12,736 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-25 17:28:12,736 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-25 17:28:12,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (1/1) ...
[2022-11-25 17:28:12,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-25 17:28:12,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3
[2022-11-25 17:28:12,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-25 17:28:12,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-25 17:28:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-25 17:28:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-25 17:28:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2022-11-25 17:28:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-11-25 17:28:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-11-25 17:28:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-11-25 17:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-11-25 17:28:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-11-25 17:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-11-25 17:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-11-25 17:28:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-25 17:28:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-25 17:28:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-25 17:28:12,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-25 17:28:12,848 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-11-25 17:28:13,120 INFO L235 CfgBuilder]: Building ICFG
[2022-11-25 17:28:13,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-25 17:28:13,562 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-25 17:28:13,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-25 17:28:13,580 INFO L300 CfgBuilder]: Removed 4 assume(true) statements.
[2022-11-25 17:28:13,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:28:13 BoogieIcfgContainer
[2022-11-25 17:28:13,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-25 17:28:13,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-25 17:28:13,591 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-25 17:28:13,595 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-25 17:28:13,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:28:11" (1/3) ...
[2022-11-25 17:28:13,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68629ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:28:13, skipping insertion in model container
[2022-11-25 17:28:13,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:28:12" (2/3) ...
[2022-11-25 17:28:13,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68629ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:28:13, skipping insertion in model container
[2022-11-25 17:28:13,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:28:13" (3/3) ...
[2022-11-25 17:28:13,603 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i
[2022-11-25 17:28:13,616 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-11-25 17:28:13,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-25 17:28:13,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations.
[2022-11-25 17:28:13,631 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-11-25 17:28:13,843 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-11-25 17:28:13,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 150 transitions, 316 flow
[2022-11-25 17:28:14,041 INFO L130 PetriNetUnfolder]: 10/148 cut-off events.
[2022-11-25 17:28:14,042 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2022-11-25 17:28:14,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 148 events. 10/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 203 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 93. Up to 3 conditions per place.
[2022-11-25 17:28:14,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 150 transitions, 316 flow
[2022-11-25 17:28:14,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 132 transitions, 273 flow
[2022-11-25 17:28:14,066 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-11-25 17:28:14,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 132 transitions, 273 flow
[2022-11-25 17:28:14,101 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 132 transitions, 273 flow
[2022-11-25 17:28:14,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 132 transitions, 273 flow
[2022-11-25 17:28:14,176 INFO L130 PetriNetUnfolder]: 8/132 cut-off events.
[2022-11-25 17:28:14,178 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-11-25 17:28:14,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 132 events. 8/132 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 183 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place.
[2022-11-25 17:28:14,186 INFO L119 LiptonReduction]: Number of co-enabled transitions 3074
[2022-11-25 17:28:23,421 INFO L134 LiptonReduction]: Checked pairs total: 6342
[2022-11-25 17:28:23,422 INFO L136 LiptonReduction]: Total number of compositions: 110
[2022-11-25 17:28:23,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-25 17:28:23,446 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@78832218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-25 17:28:23,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations.
[2022-11-25 17:28:23,454 INFO L130 PetriNetUnfolder]: 2/15 cut-off events.
[2022-11-25 17:28:23,455 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-11-25 17:28:23,455 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:23,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:23,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:23,462 INFO L85 PathProgramCache]: Analyzing trace with hash -925066225, now seen corresponding path program 1 times
[2022-11-25 17:28:23,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:23,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830908554]
[2022-11-25 17:28:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:23,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:23,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:23,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:23,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830908554]
[2022-11-25 17:28:23,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830908554] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:23,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:23,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 17:28:23,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532423001]
[2022-11-25 17:28:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:23,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-25 17:28:23,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:23,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-25 17:28:23,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-25 17:28:23,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 260
[2022-11-25 17:28:23,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 81 flow. Second operand has 2 states, 2 states have (on average 142.5) internal successors, (285), 2 states have internal predecessors, (285), 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)
[2022-11-25 17:28:23,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:23,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 260
[2022-11-25 17:28:23,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:24,036 INFO L130 PetriNetUnfolder]: 345/594 cut-off events.
[2022-11-25 17:28:24,037 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES.
[2022-11-25 17:28:24,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1187 conditions, 594 events. 345/594 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2570 event pairs, 261 based on Foata normal form. 24/419 useless extension candidates. Maximal degree in co-relation 1074. Up to 561 conditions per place.
[2022-11-25 17:28:24,050 INFO L137 encePairwiseOnDemand]: 259/260 looper letters, 28 selfloop transitions, 0 changer transitions 0/35 dead transitions.
[2022-11-25 17:28:24,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 35 transitions, 135 flow
[2022-11-25 17:28:24,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-25 17:28:24,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-11-25 17:28:24,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions.
[2022-11-25 17:28:24,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5942307692307692
[2022-11-25 17:28:24,079 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 309 transitions.
[2022-11-25 17:28:24,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 309 transitions.
[2022-11-25 17:28:24,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:24,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 309 transitions.
[2022-11-25 17:28:24,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.5) internal successors, (309), 2 states have internal predecessors, (309), 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)
[2022-11-25 17:28:24,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 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)
[2022-11-25 17:28:24,105 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 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)
[2022-11-25 17:28:24,107 INFO L175 Difference]: Start difference. First operand has 38 places, 36 transitions, 81 flow. Second operand 2 states and 309 transitions.
[2022-11-25 17:28:24,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 35 transitions, 135 flow
[2022-11-25 17:28:24,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places.
[2022-11-25 17:28:24,115 INFO L231 Difference]: Finished difference. Result has 36 places, 35 transitions, 74 flow
[2022-11-25 17:28:24,117 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=74, PETRI_PLACES=36, PETRI_TRANSITIONS=35}
[2022-11-25 17:28:24,124 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places.
[2022-11-25 17:28:24,125 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 35 transitions, 74 flow
[2022-11-25 17:28:24,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 142.5) internal successors, (285), 2 states have internal predecessors, (285), 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)
[2022-11-25 17:28:24,125 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:24,127 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:24,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-25 17:28:24,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:24,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:24,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1387617488, now seen corresponding path program 1 times
[2022-11-25 17:28:24,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:24,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060173359]
[2022-11-25 17:28:24,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:24,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:24,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:24,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060173359]
[2022-11-25 17:28:24,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060173359] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:24,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:24,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 17:28:24,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240166821]
[2022-11-25 17:28:24,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:24,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-25 17:28:24,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:24,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-25 17:28:24,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-25 17:28:24,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 260
[2022-11-25 17:28:24,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 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)
[2022-11-25 17:28:24,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:24,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 260
[2022-11-25 17:28:24,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:24,678 INFO L130 PetriNetUnfolder]: 696/1187 cut-off events.
[2022-11-25 17:28:24,678 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2022-11-25 17:28:24,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2332 conditions, 1187 events. 696/1187 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5579 event pairs, 71 based on Foata normal form. 12/823 useless extension candidates. Maximal degree in co-relation 2329. Up to 797 conditions per place.
[2022-11-25 17:28:24,687 INFO L137 encePairwiseOnDemand]: 248/260 looper letters, 68 selfloop transitions, 12 changer transitions 3/86 dead transitions.
[2022-11-25 17:28:24,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 86 transitions, 349 flow
[2022-11-25 17:28:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-25 17:28:24,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2022-11-25 17:28:24,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 735 transitions.
[2022-11-25 17:28:24,691 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5653846153846154
[2022-11-25 17:28:24,691 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 735 transitions.
[2022-11-25 17:28:24,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 735 transitions.
[2022-11-25 17:28:24,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:24,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 735 transitions.
[2022-11-25 17:28:24,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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)
[2022-11-25 17:28:24,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 260.0) internal successors, (1560), 6 states have internal predecessors, (1560), 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)
[2022-11-25 17:28:24,700 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 260.0) internal successors, (1560), 6 states have internal predecessors, (1560), 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)
[2022-11-25 17:28:24,700 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 74 flow. Second operand 5 states and 735 transitions.
[2022-11-25 17:28:24,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 86 transitions, 349 flow
[2022-11-25 17:28:24,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 86 transitions, 349 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-11-25 17:28:24,703 INFO L231 Difference]: Finished difference. Result has 44 places, 46 transitions, 178 flow
[2022-11-25 17:28:24,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=44, PETRI_TRANSITIONS=46}
[2022-11-25 17:28:24,705 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places.
[2022-11-25 17:28:24,705 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 46 transitions, 178 flow
[2022-11-25 17:28:24,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 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)
[2022-11-25 17:28:24,706 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:24,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:24,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-25 17:28:24,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:24,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:24,708 INFO L85 PathProgramCache]: Analyzing trace with hash 66473431, now seen corresponding path program 1 times
[2022-11-25 17:28:24,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:24,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537821727]
[2022-11-25 17:28:24,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:24,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:24,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537821727]
[2022-11-25 17:28:24,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537821727] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:24,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:24,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 17:28:24,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247669965]
[2022-11-25 17:28:24,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:24,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-25 17:28:24,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:24,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-25 17:28:24,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-25 17:28:24,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 260
[2022-11-25 17:28:24,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 46 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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)
[2022-11-25 17:28:24,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:24,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 260
[2022-11-25 17:28:24,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:25,060 INFO L130 PetriNetUnfolder]: 557/1054 cut-off events.
[2022-11-25 17:28:25,061 INFO L131 PetriNetUnfolder]: For 324/332 co-relation queries the response was YES.
[2022-11-25 17:28:25,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2688 conditions, 1054 events. 557/1054 cut-off events. For 324/332 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5416 event pairs, 186 based on Foata normal form. 4/796 useless extension candidates. Maximal degree in co-relation 2681. Up to 754 conditions per place.
[2022-11-25 17:28:25,071 INFO L137 encePairwiseOnDemand]: 255/260 looper letters, 52 selfloop transitions, 3 changer transitions 0/65 dead transitions.
[2022-11-25 17:28:25,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 65 transitions, 348 flow
[2022-11-25 17:28:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-25 17:28:25,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-11-25 17:28:25,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions.
[2022-11-25 17:28:25,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5858974358974359
[2022-11-25 17:28:25,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 457 transitions.
[2022-11-25 17:28:25,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 457 transitions.
[2022-11-25 17:28:25,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:25,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 457 transitions.
[2022-11-25 17:28:25,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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)
[2022-11-25 17:28:25,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:25,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:25,082 INFO L175 Difference]: Start difference. First operand has 44 places, 46 transitions, 178 flow. Second operand 3 states and 457 transitions.
[2022-11-25 17:28:25,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 65 transitions, 348 flow
[2022-11-25 17:28:25,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-11-25 17:28:25,091 INFO L231 Difference]: Finished difference. Result has 47 places, 48 transitions, 213 flow
[2022-11-25 17:28:25,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=47, PETRI_TRANSITIONS=48}
[2022-11-25 17:28:25,093 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places.
[2022-11-25 17:28:25,094 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 48 transitions, 213 flow
[2022-11-25 17:28:25,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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)
[2022-11-25 17:28:25,095 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:25,095 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:25,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-25 17:28:25,096 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:25,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:25,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1512382768, now seen corresponding path program 1 times
[2022-11-25 17:28:25,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:25,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992305641]
[2022-11-25 17:28:25,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:25,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:25,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:25,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992305641]
[2022-11-25 17:28:25,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992305641] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:25,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:25,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-25 17:28:25,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354093012]
[2022-11-25 17:28:25,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:25,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-25 17:28:25,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:25,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-25 17:28:25,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-25 17:28:25,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 260
[2022-11-25 17:28:25,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 48 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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)
[2022-11-25 17:28:25,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:25,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 260
[2022-11-25 17:28:25,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:25,617 INFO L130 PetriNetUnfolder]: 309/674 cut-off events.
[2022-11-25 17:28:25,621 INFO L131 PetriNetUnfolder]: For 185/185 co-relation queries the response was YES.
[2022-11-25 17:28:25,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1682 conditions, 674 events. 309/674 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3420 event pairs, 108 based on Foata normal form. 44/622 useless extension candidates. Maximal degree in co-relation 1673. Up to 311 conditions per place.
[2022-11-25 17:28:25,628 INFO L137 encePairwiseOnDemand]: 248/260 looper letters, 28 selfloop transitions, 16 changer transitions 0/51 dead transitions.
[2022-11-25 17:28:25,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 51 transitions, 282 flow
[2022-11-25 17:28:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-25 17:28:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-11-25 17:28:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions.
[2022-11-25 17:28:25,635 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5551282051282052
[2022-11-25 17:28:25,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions.
[2022-11-25 17:28:25,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions.
[2022-11-25 17:28:25,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:25,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions.
[2022-11-25 17:28:25,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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)
[2022-11-25 17:28:25,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:25,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:25,641 INFO L175 Difference]: Start difference. First operand has 47 places, 48 transitions, 213 flow. Second operand 3 states and 433 transitions.
[2022-11-25 17:28:25,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 51 transitions, 282 flow
[2022-11-25 17:28:25,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 267 flow, removed 6 selfloop flow, removed 1 redundant places.
[2022-11-25 17:28:25,653 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 186 flow
[2022-11-25 17:28:25,654 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=48, PETRI_TRANSITIONS=42}
[2022-11-25 17:28:25,655 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places.
[2022-11-25 17:28:25,655 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 186 flow
[2022-11-25 17:28:25,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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)
[2022-11-25 17:28:25,656 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:25,656 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:25,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-25 17:28:25,657 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:25,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:25,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1657483612, now seen corresponding path program 1 times
[2022-11-25 17:28:25,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:25,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131652476]
[2022-11-25 17:28:25,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:25,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:25,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:25,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131652476]
[2022-11-25 17:28:25,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131652476] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-25 17:28:25,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351486671]
[2022-11-25 17:28:25,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:25,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-25 17:28:25,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3
[2022-11-25 17:28:25,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-25 17:28:25,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-25 17:28:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:25,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-25 17:28:25,908 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-25 17:28:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:25,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-25 17:28:25,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351486671] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:25,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-25 17:28:25,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2022-11-25 17:28:25,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508443291]
[2022-11-25 17:28:25,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:25,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-25 17:28:25,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:25,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-25 17:28:25,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2022-11-25 17:28:26,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 260
[2022-11-25 17:28:26,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 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)
[2022-11-25 17:28:26,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:26,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 260
[2022-11-25 17:28:26,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:26,332 INFO L130 PetriNetUnfolder]: 386/777 cut-off events.
[2022-11-25 17:28:26,333 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES.
[2022-11-25 17:28:26,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 777 events. 386/777 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3311 event pairs, 81 based on Foata normal form. 26/715 useless extension candidates. Maximal degree in co-relation 2073. Up to 304 conditions per place.
[2022-11-25 17:28:26,340 INFO L137 encePairwiseOnDemand]: 247/260 looper letters, 59 selfloop transitions, 12 changer transitions 7/80 dead transitions.
[2022-11-25 17:28:26,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 80 transitions, 450 flow
[2022-11-25 17:28:26,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-11-25 17:28:26,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2022-11-25 17:28:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 976 transitions.
[2022-11-25 17:28:26,345 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5362637362637362
[2022-11-25 17:28:26,345 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 976 transitions.
[2022-11-25 17:28:26,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 976 transitions.
[2022-11-25 17:28:26,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:26,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 976 transitions.
[2022-11-25 17:28:26,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 139.42857142857142) internal successors, (976), 7 states have internal predecessors, (976), 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)
[2022-11-25 17:28:26,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 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)
[2022-11-25 17:28:26,356 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 260.0) internal successors, (2080), 8 states have internal predecessors, (2080), 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)
[2022-11-25 17:28:26,356 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 186 flow. Second operand 7 states and 976 transitions.
[2022-11-25 17:28:26,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 80 transitions, 450 flow
[2022-11-25 17:28:26,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 80 transitions, 427 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-11-25 17:28:26,362 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 227 flow
[2022-11-25 17:28:26,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=227, PETRI_PLACES=55, PETRI_TRANSITIONS=45}
[2022-11-25 17:28:26,363 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places.
[2022-11-25 17:28:26,363 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 227 flow
[2022-11-25 17:28:26,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 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)
[2022-11-25 17:28:26,364 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:26,365 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:26,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-25 17:28:26,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-25 17:28:26,573 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:26,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:26,573 INFO L85 PathProgramCache]: Analyzing trace with hash -682036895, now seen corresponding path program 1 times
[2022-11-25 17:28:26,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:26,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589149723]
[2022-11-25 17:28:26,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:26,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:26,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:26,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:26,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589149723]
[2022-11-25 17:28:26,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589149723] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:26,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:26,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-25 17:28:26,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547913811]
[2022-11-25 17:28:26,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:26,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-25 17:28:26,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:26,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-25 17:28:26,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-11-25 17:28:26,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 260
[2022-11-25 17:28:26,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 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)
[2022-11-25 17:28:26,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:26,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 260
[2022-11-25 17:28:26,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:27,045 INFO L130 PetriNetUnfolder]: 389/798 cut-off events.
[2022-11-25 17:28:27,046 INFO L131 PetriNetUnfolder]: For 335/335 co-relation queries the response was YES.
[2022-11-25 17:28:27,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2230 conditions, 798 events. 389/798 cut-off events. For 335/335 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3560 event pairs, 79 based on Foata normal form. 12/766 useless extension candidates. Maximal degree in co-relation 2219. Up to 311 conditions per place.
[2022-11-25 17:28:27,054 INFO L137 encePairwiseOnDemand]: 249/260 looper letters, 60 selfloop transitions, 12 changer transitions 6/80 dead transitions.
[2022-11-25 17:28:27,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 80 transitions, 484 flow
[2022-11-25 17:28:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-25 17:28:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2022-11-25 17:28:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 843 transitions.
[2022-11-25 17:28:27,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5403846153846154
[2022-11-25 17:28:27,059 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 843 transitions.
[2022-11-25 17:28:27,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 843 transitions.
[2022-11-25 17:28:27,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:27,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 843 transitions.
[2022-11-25 17:28:27,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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)
[2022-11-25 17:28:27,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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)
[2022-11-25 17:28:27,067 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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)
[2022-11-25 17:28:27,068 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 227 flow. Second operand 6 states and 843 transitions.
[2022-11-25 17:28:27,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 80 transitions, 484 flow
[2022-11-25 17:28:27,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 80 transitions, 474 flow, removed 0 selfloop flow, removed 3 redundant places.
[2022-11-25 17:28:27,073 INFO L231 Difference]: Finished difference. Result has 59 places, 47 transitions, 271 flow
[2022-11-25 17:28:27,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=59, PETRI_TRANSITIONS=47}
[2022-11-25 17:28:27,074 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places.
[2022-11-25 17:28:27,074 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 271 flow
[2022-11-25 17:28:27,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 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)
[2022-11-25 17:28:27,075 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:27,076 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:27,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-11-25 17:28:27,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:27,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:27,077 INFO L85 PathProgramCache]: Analyzing trace with hash 928463265, now seen corresponding path program 1 times
[2022-11-25 17:28:27,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:27,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871598384]
[2022-11-25 17:28:27,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:27,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:27,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:27,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871598384]
[2022-11-25 17:28:27,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871598384] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:27,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:27,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 17:28:27,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554739524]
[2022-11-25 17:28:27,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:27,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-25 17:28:27,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:27,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-25 17:28:27,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-25 17:28:27,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 260
[2022-11-25 17:28:27,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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)
[2022-11-25 17:28:27,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:27,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 260
[2022-11-25 17:28:27,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:27,408 INFO L130 PetriNetUnfolder]: 334/743 cut-off events.
[2022-11-25 17:28:27,408 INFO L131 PetriNetUnfolder]: For 642/646 co-relation queries the response was YES.
[2022-11-25 17:28:27,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2144 conditions, 743 events. 334/743 cut-off events. For 642/646 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3495 event pairs, 190 based on Foata normal form. 18/709 useless extension candidates. Maximal degree in co-relation 2131. Up to 496 conditions per place.
[2022-11-25 17:28:27,416 INFO L137 encePairwiseOnDemand]: 255/260 looper letters, 49 selfloop transitions, 2 changer transitions 0/62 dead transitions.
[2022-11-25 17:28:27,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 62 transitions, 441 flow
[2022-11-25 17:28:27,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-25 17:28:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-11-25 17:28:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions.
[2022-11-25 17:28:27,419 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5820512820512821
[2022-11-25 17:28:27,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions.
[2022-11-25 17:28:27,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions.
[2022-11-25 17:28:27,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:27,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions.
[2022-11-25 17:28:27,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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)
[2022-11-25 17:28:27,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:27,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:27,429 INFO L175 Difference]: Start difference. First operand has 59 places, 47 transitions, 271 flow. Second operand 3 states and 454 transitions.
[2022-11-25 17:28:27,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 62 transitions, 441 flow
[2022-11-25 17:28:27,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 419 flow, removed 1 selfloop flow, removed 4 redundant places.
[2022-11-25 17:28:27,435 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 270 flow
[2022-11-25 17:28:27,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=58, PETRI_TRANSITIONS=48}
[2022-11-25 17:28:27,437 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 20 predicate places.
[2022-11-25 17:28:27,438 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 270 flow
[2022-11-25 17:28:27,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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)
[2022-11-25 17:28:27,440 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:27,440 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:27,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-25 17:28:27,441 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:27,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash -861988353, now seen corresponding path program 1 times
[2022-11-25 17:28:27,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:27,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103580065]
[2022-11-25 17:28:27,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:27,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:27,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:27,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103580065]
[2022-11-25 17:28:27,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103580065] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:27,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:27,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-25 17:28:27,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635946119]
[2022-11-25 17:28:27,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:27,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-25 17:28:27,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:27,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-25 17:28:27,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2022-11-25 17:28:27,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 260
[2022-11-25 17:28:27,775 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 270 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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)
[2022-11-25 17:28:27,775 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:27,775 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 260
[2022-11-25 17:28:27,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:28,206 INFO L130 PetriNetUnfolder]: 515/1048 cut-off events.
[2022-11-25 17:28:28,206 INFO L131 PetriNetUnfolder]: For 809/809 co-relation queries the response was YES.
[2022-11-25 17:28:28,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3165 conditions, 1048 events. 515/1048 cut-off events. For 809/809 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4802 event pairs, 87 based on Foata normal form. 20/1000 useless extension candidates. Maximal degree in co-relation 3151. Up to 299 conditions per place.
[2022-11-25 17:28:28,216 INFO L137 encePairwiseOnDemand]: 244/260 looper letters, 77 selfloop transitions, 20 changer transitions 3/102 dead transitions.
[2022-11-25 17:28:28,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 102 transitions, 658 flow
[2022-11-25 17:28:28,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-25 17:28:28,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2022-11-25 17:28:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1213 transitions.
[2022-11-25 17:28:28,222 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5183760683760684
[2022-11-25 17:28:28,223 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1213 transitions.
[2022-11-25 17:28:28,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1213 transitions.
[2022-11-25 17:28:28,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:28,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1213 transitions.
[2022-11-25 17:28:28,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 134.77777777777777) internal successors, (1213), 9 states have internal predecessors, (1213), 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)
[2022-11-25 17:28:28,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 260.0) internal successors, (2600), 10 states have internal predecessors, (2600), 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)
[2022-11-25 17:28:28,237 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 260.0) internal successors, (2600), 10 states have internal predecessors, (2600), 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)
[2022-11-25 17:28:28,237 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 270 flow. Second operand 9 states and 1213 transitions.
[2022-11-25 17:28:28,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 102 transitions, 658 flow
[2022-11-25 17:28:28,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-11-25 17:28:28,245 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 388 flow
[2022-11-25 17:28:28,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=388, PETRI_PLACES=68, PETRI_TRANSITIONS=56}
[2022-11-25 17:28:28,250 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 30 predicate places.
[2022-11-25 17:28:28,251 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 388 flow
[2022-11-25 17:28:28,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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)
[2022-11-25 17:28:28,252 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:28,252 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:28,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-11-25 17:28:28,257 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:28,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:28,258 INFO L85 PathProgramCache]: Analyzing trace with hash 260189723, now seen corresponding path program 1 times
[2022-11-25 17:28:28,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:28,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173314277]
[2022-11-25 17:28:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:28,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:28,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173314277]
[2022-11-25 17:28:28,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173314277] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-25 17:28:28,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914984661]
[2022-11-25 17:28:28,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:28,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-25 17:28:28,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3
[2022-11-25 17:28:28,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-25 17:28:28,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-25 17:28:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:28,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-11-25 17:28:28,631 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-25 17:28:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:28,692 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-25 17:28:28,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:28,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914984661] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-25 17:28:28,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-25 17:28:28,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10
[2022-11-25 17:28:28,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463375861]
[2022-11-25 17:28:28,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-25 17:28:28,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-11-25 17:28:28,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-11-25 17:28:28,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132
[2022-11-25 17:28:28,891 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 260
[2022-11-25 17:28:28,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 388 flow. Second operand has 12 states, 12 states have (on average 128.0) internal successors, (1536), 12 states have internal predecessors, (1536), 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)
[2022-11-25 17:28:28,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:28,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 260
[2022-11-25 17:28:28,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:29,322 INFO L130 PetriNetUnfolder]: 526/1089 cut-off events.
[2022-11-25 17:28:29,323 INFO L131 PetriNetUnfolder]: For 1579/1579 co-relation queries the response was YES.
[2022-11-25 17:28:29,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3581 conditions, 1089 events. 526/1089 cut-off events. For 1579/1579 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5181 event pairs, 77 based on Foata normal form. 58/1079 useless extension candidates. Maximal degree in co-relation 3565. Up to 378 conditions per place.
[2022-11-25 17:28:29,334 INFO L137 encePairwiseOnDemand]: 241/260 looper letters, 54 selfloop transitions, 34 changer transitions 3/93 dead transitions.
[2022-11-25 17:28:29,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 93 transitions, 674 flow
[2022-11-25 17:28:29,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-25 17:28:29,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2022-11-25 17:28:29,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1194 transitions.
[2022-11-25 17:28:29,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5102564102564102
[2022-11-25 17:28:29,340 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1194 transitions.
[2022-11-25 17:28:29,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1194 transitions.
[2022-11-25 17:28:29,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:29,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1194 transitions.
[2022-11-25 17:28:29,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 132.66666666666666) internal successors, (1194), 9 states have internal predecessors, (1194), 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)
[2022-11-25 17:28:29,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 260.0) internal successors, (2600), 10 states have internal predecessors, (2600), 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)
[2022-11-25 17:28:29,352 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 260.0) internal successors, (2600), 10 states have internal predecessors, (2600), 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)
[2022-11-25 17:28:29,352 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 388 flow. Second operand 9 states and 1194 transitions.
[2022-11-25 17:28:29,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 93 transitions, 674 flow
[2022-11-25 17:28:29,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 93 transitions, 661 flow, removed 0 selfloop flow, removed 4 redundant places.
[2022-11-25 17:28:29,363 INFO L231 Difference]: Finished difference. Result has 69 places, 55 transitions, 450 flow
[2022-11-25 17:28:29,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=450, PETRI_PLACES=69, PETRI_TRANSITIONS=55}
[2022-11-25 17:28:29,364 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 31 predicate places.
[2022-11-25 17:28:29,364 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 55 transitions, 450 flow
[2022-11-25 17:28:29,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 128.0) internal successors, (1536), 12 states have internal predecessors, (1536), 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)
[2022-11-25 17:28:29,367 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:29,368 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:29,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-25 17:28:29,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-25 17:28:29,575 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:29,576 INFO L85 PathProgramCache]: Analyzing trace with hash 928922627, now seen corresponding path program 1 times
[2022-11-25 17:28:29,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:29,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207959720]
[2022-11-25 17:28:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:29,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:29,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:29,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207959720]
[2022-11-25 17:28:29,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207959720] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:29,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:29,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 17:28:29,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691165659]
[2022-11-25 17:28:29,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:29,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-25 17:28:29,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:29,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-25 17:28:29,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-25 17:28:29,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 260
[2022-11-25 17:28:29,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 55 transitions, 450 flow. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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)
[2022-11-25 17:28:29,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:29,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 260
[2022-11-25 17:28:29,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:29,942 INFO L130 PetriNetUnfolder]: 428/925 cut-off events.
[2022-11-25 17:28:29,942 INFO L131 PetriNetUnfolder]: For 1504/1506 co-relation queries the response was YES.
[2022-11-25 17:28:29,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3294 conditions, 925 events. 428/925 cut-off events. For 1504/1506 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4424 event pairs, 124 based on Foata normal form. 2/875 useless extension candidates. Maximal degree in co-relation 3277. Up to 780 conditions per place.
[2022-11-25 17:28:29,952 INFO L137 encePairwiseOnDemand]: 258/260 looper letters, 45 selfloop transitions, 1 changer transitions 0/59 dead transitions.
[2022-11-25 17:28:29,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 59 transitions, 538 flow
[2022-11-25 17:28:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-25 17:28:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-11-25 17:28:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions.
[2022-11-25 17:28:29,955 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641
[2022-11-25 17:28:29,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions.
[2022-11-25 17:28:29,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions.
[2022-11-25 17:28:29,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:29,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions.
[2022-11-25 17:28:29,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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)
[2022-11-25 17:28:29,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:29,960 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:29,961 INFO L175 Difference]: Start difference. First operand has 69 places, 55 transitions, 450 flow. Second operand 3 states and 440 transitions.
[2022-11-25 17:28:29,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 59 transitions, 538 flow
[2022-11-25 17:28:29,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 483 flow, removed 5 selfloop flow, removed 7 redundant places.
[2022-11-25 17:28:29,972 INFO L231 Difference]: Finished difference. Result has 63 places, 53 transitions, 375 flow
[2022-11-25 17:28:29,974 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=63, PETRI_TRANSITIONS=53}
[2022-11-25 17:28:29,975 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 25 predicate places.
[2022-11-25 17:28:29,975 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 375 flow
[2022-11-25 17:28:29,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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)
[2022-11-25 17:28:29,975 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:29,976 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:29,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-11-25 17:28:29,977 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:29,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1903739507, now seen corresponding path program 1 times
[2022-11-25 17:28:29,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:29,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118470669]
[2022-11-25 17:28:29,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:29,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-25 17:28:30,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:30,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118470669]
[2022-11-25 17:28:30,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118470669] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:30,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:30,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 17:28:30,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758992451]
[2022-11-25 17:28:30,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:30,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-25 17:28:30,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:30,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-25 17:28:30,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-25 17:28:30,094 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 260
[2022-11-25 17:28:30,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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)
[2022-11-25 17:28:30,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:30,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 260
[2022-11-25 17:28:30,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:30,313 INFO L130 PetriNetUnfolder]: 393/836 cut-off events.
[2022-11-25 17:28:30,314 INFO L131 PetriNetUnfolder]: For 1172/1174 co-relation queries the response was YES.
[2022-11-25 17:28:30,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 836 events. 393/836 cut-off events. For 1172/1174 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3739 event pairs, 190 based on Foata normal form. 2/806 useless extension candidates. Maximal degree in co-relation 2718. Up to 440 conditions per place.
[2022-11-25 17:28:30,323 INFO L137 encePairwiseOnDemand]: 256/260 looper letters, 55 selfloop transitions, 5 changer transitions 1/74 dead transitions.
[2022-11-25 17:28:30,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 74 transitions, 627 flow
[2022-11-25 17:28:30,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-25 17:28:30,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-11-25 17:28:30,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions.
[2022-11-25 17:28:30,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5705128205128205
[2022-11-25 17:28:30,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions.
[2022-11-25 17:28:30,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions.
[2022-11-25 17:28:30,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:30,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions.
[2022-11-25 17:28:30,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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)
[2022-11-25 17:28:30,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:30,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:30,331 INFO L175 Difference]: Start difference. First operand has 63 places, 53 transitions, 375 flow. Second operand 3 states and 445 transitions.
[2022-11-25 17:28:30,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 74 transitions, 627 flow
[2022-11-25 17:28:30,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 74 transitions, 626 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-11-25 17:28:30,340 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 374 flow
[2022-11-25 17:28:30,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=64, PETRI_TRANSITIONS=52}
[2022-11-25 17:28:30,341 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 26 predicate places.
[2022-11-25 17:28:30,341 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 374 flow
[2022-11-25 17:28:30,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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)
[2022-11-25 17:28:30,342 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:30,342 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:30,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-11-25 17:28:30,343 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:30,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:30,344 INFO L85 PathProgramCache]: Analyzing trace with hash 647734585, now seen corresponding path program 1 times
[2022-11-25 17:28:30,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:30,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749457549]
[2022-11-25 17:28:30,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:30,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-25 17:28:30,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:30,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749457549]
[2022-11-25 17:28:30,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749457549] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:30,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:30,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-25 17:28:30,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078979385]
[2022-11-25 17:28:30,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:30,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-25 17:28:30,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:30,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-25 17:28:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-25 17:28:30,457 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 260
[2022-11-25 17:28:30,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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)
[2022-11-25 17:28:30,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:30,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 260
[2022-11-25 17:28:30,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:30,671 INFO L130 PetriNetUnfolder]: 358/749 cut-off events.
[2022-11-25 17:28:30,672 INFO L131 PetriNetUnfolder]: For 1205/1207 co-relation queries the response was YES.
[2022-11-25 17:28:30,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 749 events. 358/749 cut-off events. For 1205/1207 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3189 event pairs, 88 based on Foata normal form. 2/731 useless extension candidates. Maximal degree in co-relation 2490. Up to 456 conditions per place.
[2022-11-25 17:28:30,679 INFO L137 encePairwiseOnDemand]: 256/260 looper letters, 45 selfloop transitions, 5 changer transitions 0/63 dead transitions.
[2022-11-25 17:28:30,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 63 transitions, 530 flow
[2022-11-25 17:28:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-25 17:28:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-11-25 17:28:30,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions.
[2022-11-25 17:28:30,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5628205128205128
[2022-11-25 17:28:30,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions.
[2022-11-25 17:28:30,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions.
[2022-11-25 17:28:30,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:30,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions.
[2022-11-25 17:28:30,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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)
[2022-11-25 17:28:30,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:30,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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)
[2022-11-25 17:28:30,688 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 374 flow. Second operand 3 states and 439 transitions.
[2022-11-25 17:28:30,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 63 transitions, 530 flow
[2022-11-25 17:28:30,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 63 transitions, 521 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-11-25 17:28:30,695 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 369 flow
[2022-11-25 17:28:30,696 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=65, PETRI_TRANSITIONS=51}
[2022-11-25 17:28:30,696 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places.
[2022-11-25 17:28:30,697 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 369 flow
[2022-11-25 17:28:30,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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)
[2022-11-25 17:28:30,697 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:30,698 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:30,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2022-11-25 17:28:30,698 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:30,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1720633489, now seen corresponding path program 1 times
[2022-11-25 17:28:30,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:30,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362132880]
[2022-11-25 17:28:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:30,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:30,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:30,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362132880]
[2022-11-25 17:28:30,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362132880] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-25 17:28:30,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478541863]
[2022-11-25 17:28:30,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:30,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-25 17:28:30,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3
[2022-11-25 17:28:30,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-25 17:28:30,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-25 17:28:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:30,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-25 17:28:30,967 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-25 17:28:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-25 17:28:31,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-25 17:28:31,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478541863] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:31,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-25 17:28:31,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4
[2022-11-25 17:28:31,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215865869]
[2022-11-25 17:28:31,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:31,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-25 17:28:31,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:31,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-25 17:28:31,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-25 17:28:31,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 260
[2022-11-25 17:28:31,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 51 transitions, 369 flow. Second operand has 4 states, 4 states have (on average 140.75) internal successors, (563), 4 states have internal predecessors, (563), 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)
[2022-11-25 17:28:31,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:31,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 260
[2022-11-25 17:28:31,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:31,249 INFO L130 PetriNetUnfolder]: 327/678 cut-off events.
[2022-11-25 17:28:31,249 INFO L131 PetriNetUnfolder]: For 1338/1344 co-relation queries the response was YES.
[2022-11-25 17:28:31,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2313 conditions, 678 events. 327/678 cut-off events. For 1338/1344 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2682 event pairs, 78 based on Foata normal form. 22/696 useless extension candidates. Maximal degree in co-relation 2296. Up to 399 conditions per place.
[2022-11-25 17:28:31,256 INFO L137 encePairwiseOnDemand]: 257/260 looper letters, 49 selfloop transitions, 2 changer transitions 6/70 dead transitions.
[2022-11-25 17:28:31,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 565 flow
[2022-11-25 17:28:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-25 17:28:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2022-11-25 17:28:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 590 transitions.
[2022-11-25 17:28:31,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5673076923076923
[2022-11-25 17:28:31,259 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 590 transitions.
[2022-11-25 17:28:31,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 590 transitions.
[2022-11-25 17:28:31,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:31,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 590 transitions.
[2022-11-25 17:28:31,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.5) internal successors, (590), 4 states have internal predecessors, (590), 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)
[2022-11-25 17:28:31,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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)
[2022-11-25 17:28:31,265 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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)
[2022-11-25 17:28:31,265 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 369 flow. Second operand 4 states and 590 transitions.
[2022-11-25 17:28:31,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 565 flow
[2022-11-25 17:28:31,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 560 flow, removed 0 selfloop flow, removed 1 redundant places.
[2022-11-25 17:28:31,273 INFO L231 Difference]: Finished difference. Result has 66 places, 49 transitions, 348 flow
[2022-11-25 17:28:31,273 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=348, PETRI_PLACES=66, PETRI_TRANSITIONS=49}
[2022-11-25 17:28:31,274 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 28 predicate places.
[2022-11-25 17:28:31,274 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 49 transitions, 348 flow
[2022-11-25 17:28:31,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.75) internal successors, (563), 4 states have internal predecessors, (563), 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)
[2022-11-25 17:28:31,275 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:31,275 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:31,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-11-25 17:28:31,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2022-11-25 17:28:31,483 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:31,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:31,484 INFO L85 PathProgramCache]: Analyzing trace with hash -777016051, now seen corresponding path program 2 times
[2022-11-25 17:28:31,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:31,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616378185]
[2022-11-25 17:28:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:31,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-25 17:28:31,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:31,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616378185]
[2022-11-25 17:28:31,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616378185] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:31,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-25 17:28:31,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-25 17:28:31,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65269317]
[2022-11-25 17:28:31,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:31,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-25 17:28:31,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:31,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-25 17:28:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-11-25 17:28:31,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 260
[2022-11-25 17:28:31,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 49 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 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)
[2022-11-25 17:28:31,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:31,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 260
[2022-11-25 17:28:31,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:31,980 INFO L130 PetriNetUnfolder]: 397/794 cut-off events.
[2022-11-25 17:28:31,980 INFO L131 PetriNetUnfolder]: For 1341/1341 co-relation queries the response was YES.
[2022-11-25 17:28:31,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2700 conditions, 794 events. 397/794 cut-off events. For 1341/1341 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3125 event pairs, 83 based on Foata normal form. 8/802 useless extension candidates. Maximal degree in co-relation 2682. Up to 292 conditions per place.
[2022-11-25 17:28:31,988 INFO L137 encePairwiseOnDemand]: 252/260 looper letters, 58 selfloop transitions, 15 changer transitions 8/83 dead transitions.
[2022-11-25 17:28:31,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 83 transitions, 641 flow
[2022-11-25 17:28:31,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-25 17:28:31,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2022-11-25 17:28:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 837 transitions.
[2022-11-25 17:28:31,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5365384615384615
[2022-11-25 17:28:31,993 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 837 transitions.
[2022-11-25 17:28:31,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 837 transitions.
[2022-11-25 17:28:31,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:31,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 837 transitions.
[2022-11-25 17:28:31,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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)
[2022-11-25 17:28:32,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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)
[2022-11-25 17:28:32,003 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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)
[2022-11-25 17:28:32,003 INFO L175 Difference]: Start difference. First operand has 66 places, 49 transitions, 348 flow. Second operand 6 states and 837 transitions.
[2022-11-25 17:28:32,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 83 transitions, 641 flow
[2022-11-25 17:28:32,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 83 transitions, 632 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-11-25 17:28:32,013 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 384 flow
[2022-11-25 17:28:32,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=384, PETRI_PLACES=70, PETRI_TRANSITIONS=49}
[2022-11-25 17:28:32,015 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places.
[2022-11-25 17:28:32,015 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 384 flow
[2022-11-25 17:28:32,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 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)
[2022-11-25 17:28:32,016 INFO L201 CegarLoopForPetriNet]: Found error trace
[2022-11-25 17:28:32,016 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:32,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-11-25 17:28:32,017 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] ===
[2022-11-25 17:28:32,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-25 17:28:32,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1269894855, now seen corresponding path program 3 times
[2022-11-25 17:28:32,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-25 17:28:32,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039134606]
[2022-11-25 17:28:32,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-25 17:28:32,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-25 17:28:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-25 17:28:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-11-25 17:28:32,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-25 17:28:32,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039134606]
[2022-11-25 17:28:32,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039134606] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-25 17:28:32,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687423273]
[2022-11-25 17:28:32,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-11-25 17:28:32,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-25 17:28:32,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3
[2022-11-25 17:28:32,332 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-25 17:28:32,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-11-25 17:28:32,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-11-25 17:28:32,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-25 17:28:32,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-11-25 17:28:32,565 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-25 17:28:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-11-25 17:28:32,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-25 17:28:32,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687423273] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-25 17:28:32,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-25 17:28:32,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10
[2022-11-25 17:28:32,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263187142]
[2022-11-25 17:28:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-25 17:28:32,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-25 17:28:32,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-25 17:28:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-25 17:28:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110
[2022-11-25 17:28:32,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 260
[2022-11-25 17:28:32,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 384 flow. Second operand has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 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)
[2022-11-25 17:28:32,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-25 17:28:32,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 260
[2022-11-25 17:28:32,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-25 17:28:32,890 INFO L130 PetriNetUnfolder]: 307/647 cut-off events.
[2022-11-25 17:28:32,891 INFO L131 PetriNetUnfolder]: For 1283/1283 co-relation queries the response was YES.
[2022-11-25 17:28:32,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2304 conditions, 647 events. 307/647 cut-off events. For 1283/1283 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2453 event pairs, 85 based on Foata normal form. 10/655 useless extension candidates. Maximal degree in co-relation 2285. Up to 246 conditions per place.
[2022-11-25 17:28:32,896 INFO L137 encePairwiseOnDemand]: 254/260 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions.
[2022-11-25 17:28:32,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 69 transitions, 564 flow
[2022-11-25 17:28:32,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-25 17:28:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2022-11-25 17:28:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 825 transitions.
[2022-11-25 17:28:32,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5288461538461539
[2022-11-25 17:28:32,900 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 825 transitions.
[2022-11-25 17:28:32,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 825 transitions.
[2022-11-25 17:28:32,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-25 17:28:32,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 825 transitions.
[2022-11-25 17:28:32,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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)
[2022-11-25 17:28:32,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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)
[2022-11-25 17:28:32,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 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)
[2022-11-25 17:28:32,908 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 384 flow. Second operand 6 states and 825 transitions.
[2022-11-25 17:28:32,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 69 transitions, 564 flow
[2022-11-25 17:28:32,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 69 transitions, 531 flow, removed 0 selfloop flow, removed 5 redundant places.
[2022-11-25 17:28:32,915 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow
[2022-11-25 17:28:32,915 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0}
[2022-11-25 17:28:32,916 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 30 predicate places.
[2022-11-25 17:28:32,916 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow
[2022-11-25 17:28:32,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 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)
[2022-11-25 17:28:32,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining)
[2022-11-25 17:28:32,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining)
[2022-11-25 17:28:32,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining)
[2022-11-25 17:28:32,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining)
[2022-11-25 17:28:32,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining)
[2022-11-25 17:28:32,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining)
[2022-11-25 17:28:32,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining)
[2022-11-25 17:28:32,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining)
[2022-11-25 17:28:32,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining)
[2022-11-25 17:28:32,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining)
[2022-11-25 17:28:32,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining)
[2022-11-25 17:28:32,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining)
[2022-11-25 17:28:32,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining)
[2022-11-25 17:28:32,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining)
[2022-11-25 17:28:32,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining)
[2022-11-25 17:28:32,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining)
[2022-11-25 17:28:32,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining)
[2022-11-25 17:28:32,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining)
[2022-11-25 17:28:32,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-11-25 17:28:33,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2022-11-25 17:28:33,133 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-25 17:28:33,140 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-11-25 17:28:33,140 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-25 17:28:33,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:28:33 BasicIcfg
[2022-11-25 17:28:33,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-25 17:28:33,148 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-25 17:28:33,148 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-25 17:28:33,149 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-25 17:28:33,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:28:13" (3/4) ...
[2022-11-25 17:28:33,153 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-25 17:28:33,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2022-11-25 17:28:33,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2022-11-25 17:28:33,169 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2022-11-25 17:28:33,169 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2022-11-25 17:28:33,170 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-25 17:28:33,170 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-25 17:28:33,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/witness.graphml
[2022-11-25 17:28:33,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-25 17:28:33,223 INFO L158 Benchmark]: Toolchain (without parser) took 21693.53ms. Allocated memory was 182.5MB in the beginning and 264.2MB in the end (delta: 81.8MB). Free memory was 150.8MB in the beginning and 95.8MB in the end (delta: 55.0MB). Peak memory consumption was 138.3MB. Max. memory is 16.1GB.
[2022-11-25 17:28:33,223 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-25 17:28:33,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1051.58ms. Allocated memory is still 182.5MB. Free memory was 150.3MB in the beginning and 124.0MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2022-11-25 17:28:33,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.77ms. Allocated memory is still 182.5MB. Free memory was 124.0MB in the beginning and 121.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-11-25 17:28:33,225 INFO L158 Benchmark]: Boogie Preprocessor took 51.29ms. Allocated memory is still 182.5MB. Free memory was 121.4MB in the beginning and 120.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-25 17:28:33,225 INFO L158 Benchmark]: RCFGBuilder took 850.09ms. Allocated memory is still 182.5MB. Free memory was 120.0MB in the beginning and 102.6MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2022-11-25 17:28:33,226 INFO L158 Benchmark]: TraceAbstraction took 19558.82ms. Allocated memory was 182.5MB in the beginning and 264.2MB in the end (delta: 81.8MB). Free memory was 102.1MB in the beginning and 99.0MB in the end (delta: 3.1MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB.
[2022-11-25 17:28:33,226 INFO L158 Benchmark]: Witness Printer took 74.27ms. Allocated memory is still 264.2MB. Free memory was 99.0MB in the beginning and 95.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-11-25 17:28:33,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1051.58ms. Allocated memory is still 182.5MB. Free memory was 150.3MB in the beginning and 124.0MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 98.77ms. Allocated memory is still 182.5MB. Free memory was 124.0MB in the beginning and 121.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 51.29ms. Allocated memory is still 182.5MB. Free memory was 121.4MB in the beginning and 120.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 850.09ms. Allocated memory is still 182.5MB. Free memory was 120.0MB in the beginning and 102.6MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 19558.82ms. Allocated memory was 182.5MB in the beginning and 264.2MB in the end (delta: 81.8MB). Free memory was 102.1MB in the beginning and 99.0MB in the end (delta: 3.1MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB.
* Witness Printer took 74.27ms. Allocated memory is still 264.2MB. Free memory was 99.0MB in the beginning and 95.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 9.3s, 131 PlacesBefore, 38 PlacesAfterwards, 132 TransitionsBefore, 36 TransitionsAfterwards, 3074 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 110 TotalNumberOfCompositions, 6342 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3702, independent: 3503, independent conditional: 0, independent unconditional: 3503, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2005, independent: 1956, independent conditional: 0, independent unconditional: 1956, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2005, independent: 1936, independent conditional: 0, independent unconditional: 1936, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 69, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 178, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3702, independent: 1547, independent conditional: 0, independent unconditional: 1547, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 2005, unknown conditional: 0, unknown unconditional: 2005] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 210, Positive conditional cache size: 0, Positive unconditional cache size: 210, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
- PositiveResult [Line: 882]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 882]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 885]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 885]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 897]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 897]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 900]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 900]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 202 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.2s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 989 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 797 mSDsluCounter, 239 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1747 IncrementalHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 146 mSolverCounterUnsat, 59 mSDtfsCounter, 1747 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=9, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 791 SizeOfPredicates, 9 NumberOfNonLiveVariables, 997 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 59/79 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
8 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-11-25 17:28:33,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e805f824-f0f9-4097-93c5-505c93ea7870/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE