./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e73cda23545f4a54d3eef0093038f0fb79909f0b7b9d845db14abda8dd1f5281
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:35:44,558 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:35:44,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:35:44,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:35:44,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:35:44,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:35:44,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:35:44,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:35:44,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:35:44,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:35:44,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:35:44,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:35:44,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:35:44,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:35:44,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:35:44,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:35:44,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:35:44,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:35:44,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:35:44,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:35:44,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:35:44,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:35:44,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:35:44,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:35:44,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:35:44,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:35:44,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:35:44,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:35:44,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:35:44,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:35:44,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:35:44,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:35:44,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:35:44,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:35:44,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:35:44,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:35:44,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:35:44,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:35:44,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:35:44,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:35:44,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:35:44,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 17:35:44,714 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:35:44,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:35:44,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:35:44,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:35:44,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:35:44,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:35:44,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:35:44,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:35:44,718 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:35:44,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:35:44,720 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:35:44,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:35:44,720 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:35:44,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:35:44,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:35:44,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:35:44,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:35:44,722 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:35:44,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:35:44,722 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:35:44,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:35:44,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:35:44,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:35:44,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:35:44,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:35:44,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:35:44,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:35:44,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:35:44,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:35:44,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 17:35:44,727 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:35:44,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:35:44,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:35:44,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:35:44,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e73cda23545f4a54d3eef0093038f0fb79909f0b7b9d845db14abda8dd1f5281
[2021-11-13 17:35:45,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:35:45,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:35:45,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:35:45,090 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:35:45,105 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:35:45,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2021-11-13 17:35:45,172 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data/04475e5a7/a65cc442d5794bf3b438d1f67325d38a/FLAG4ce3449b5
[2021-11-13 17:35:45,729 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:35:45,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2021-11-13 17:35:45,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data/04475e5a7/a65cc442d5794bf3b438d1f67325d38a/FLAG4ce3449b5
[2021-11-13 17:35:46,011 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data/04475e5a7/a65cc442d5794bf3b438d1f67325d38a
[2021-11-13 17:35:46,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:35:46,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:35:46,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:35:46,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:35:46,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:35:46,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424325fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46, skipping insertion in model container
[2021-11-13 17:35:46,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:35:46,147 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:35:46,286 WARN L228 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_6b62908a-e30d-4cc1-aad6-827d61af0db2/sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[986,999]
[2021-11-13 17:35:46,526 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:35:46,534 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:35:46,546 WARN L228 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_6b62908a-e30d-4cc1-aad6-827d61af0db2/sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[986,999]
[2021-11-13 17:35:46,632 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:35:46,674 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:35:46,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46 WrapperNode
[2021-11-13 17:35:46,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:35:46,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:35:46,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:35:46,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:35:46,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:35:46,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:35:46,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:35:46,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:35:46,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:35:46,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:35:46,816 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:35:46,816 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:35:46,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (1/1) ...
[2021-11-13 17:35:46,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:35:46,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:35:46,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:35:46,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:35:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-11-13 17:35:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-11-13 17:35:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:35:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:35:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2021-11-13 17:35:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2021-11-13 17:35:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2021-11-13 17:35:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2021-11-13 17:35:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2021-11-13 17:35:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2021-11-13 17:35:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 17:35:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-11-13 17:35:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:35:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:35:46,922 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-11-13 17:35:48,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:35:48,038 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-11-13 17:35:48,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:35:48 BoogieIcfgContainer
[2021-11-13 17:35:48,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:35:48,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:35:48,045 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:35:48,048 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:35:48,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:35:46" (1/3) ...
[2021-11-13 17:35:48,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d4a204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:35:48, skipping insertion in model container
[2021-11-13 17:35:48,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:46" (2/3) ...
[2021-11-13 17:35:48,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d4a204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:35:48, skipping insertion in model container
[2021-11-13 17:35:48,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:35:48" (3/3) ...
[2021-11-13 17:35:48,052 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2021-11-13 17:35:48,061 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-11-13 17:35:48,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:35:48,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-11-13 17:35:48,061 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-11-13 17:35:48,104 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,104 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,104 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,104 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,105 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,105 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,105 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,105 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,105 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,106 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,106 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,106 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,107 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,107 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,107 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,108 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,108 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,108 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,109 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,109 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,109 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,109 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,109 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,110 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,111 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,111 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,112 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,112 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,112 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,112 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,113 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,113 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,114 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,114 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,114 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,114 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,114 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,115 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,115 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,115 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,115 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,115 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,115 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,116 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,116 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,116 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,116 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,116 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,116 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,117 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,117 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,117 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,118 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,118 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,118 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,118 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,119 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,119 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,119 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,119 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,119 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,120 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,120 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,120 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,120 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,120 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,120 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,121 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,121 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,121 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,121 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,121 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,122 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,122 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,122 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,122 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,123 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,123 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,123 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,123 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,123 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,123 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,124 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,125 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,125 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,128 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,137 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,138 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,139 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,139 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,140 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,140 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,140 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,141 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,145 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,145 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,146 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,147 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,147 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,147 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,147 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,147 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,148 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,148 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,148 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,148 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,148 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,149 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,149 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,149 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,150 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,150 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,150 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,150 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,150 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,151 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,151 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,151 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:35:48,151 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-11-13 17:35:48,216 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:35:48,227 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:35:48,229 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2021-11-13 17:35:48,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 115 transitions, 245 flow
[2021-11-13 17:35:48,313 INFO L129 PetriNetUnfolder]: 2/112 cut-off events.
[2021-11-13 17:35:48,313 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-11-13 17:35:48,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place.
[2021-11-13 17:35:48,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 115 transitions, 245 flow
[2021-11-13 17:35:48,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 112 transitions, 233 flow
[2021-11-13 17:35:48,340 INFO L129 PetriNetUnfolder]: 0/45 cut-off events.
[2021-11-13 17:35:48,343 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-11-13 17:35:48,344 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:48,344 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:48,345 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:48,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:48,356 INFO L85 PathProgramCache]: Analyzing trace with hash 368334670, now seen corresponding path program 1 times
[2021-11-13 17:35:48,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:48,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211270595]
[2021-11-13 17:35:48,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:48,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:48,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:48,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211270595]
[2021-11-13 17:35:48,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211270595] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:48,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:48,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 17:35:48,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424921150]
[2021-11-13 17:35:48,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:48,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 17:35:48,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:48,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 17:35:48,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 17:35:48,815 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 115
[2021-11-13 17:35:48,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 112 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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)
[2021-11-13 17:35:48,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:48,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 115
[2021-11-13 17:35:48,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:49,085 INFO L129 PetriNetUnfolder]: 58/327 cut-off events.
[2021-11-13 17:35:49,085 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES.
[2021-11-13 17:35:49,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 327 events. 58/327 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1349 event pairs, 10 based on Foata normal form. 12/322 useless extension candidates. Maximal degree in co-relation 404. Up to 79 conditions per place.
[2021-11-13 17:35:49,092 INFO L132 encePairwiseOnDemand]: 110/115 looper letters, 14 selfloop transitions, 2 changer transitions 0/114 dead transitions.
[2021-11-13 17:35:49,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 275 flow
[2021-11-13 17:35:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 17:35:49,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2021-11-13 17:35:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions.
[2021-11-13 17:35:49,115 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9391304347826087
[2021-11-13 17:35:49,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions.
[2021-11-13 17:35:49,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions.
[2021-11-13 17:35:49,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:49,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions.
[2021-11-13 17:35:49,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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)
[2021-11-13 17:35:49,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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)
[2021-11-13 17:35:49,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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)
[2021-11-13 17:35:49,154 INFO L186 Difference]: Start difference. First operand has 120 places, 112 transitions, 233 flow. Second operand 3 states and 324 transitions.
[2021-11-13 17:35:49,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 275 flow
[2021-11-13 17:35:49,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 114 transitions, 270 flow, removed 0 selfloop flow, removed 3 redundant places.
[2021-11-13 17:35:49,166 INFO L242 Difference]: Finished difference. Result has 117 places, 108 transitions, 226 flow
[2021-11-13 17:35:49,168 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=117, PETRI_TRANSITIONS=108}
[2021-11-13 17:35:49,175 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, -3 predicate places.
[2021-11-13 17:35:49,175 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 226 flow
[2021-11-13 17:35:49,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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)
[2021-11-13 17:35:49,176 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:49,176 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:49,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 17:35:49,177 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:49,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:49,178 INFO L85 PathProgramCache]: Analyzing trace with hash 916552258, now seen corresponding path program 1 times
[2021-11-13 17:35:49,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:49,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884841938]
[2021-11-13 17:35:49,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:49,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:49,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:49,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:49,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884841938]
[2021-11-13 17:35:49,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884841938] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:49,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:49,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-13 17:35:49,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907071532]
[2021-11-13 17:35:49,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:49,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 17:35:49,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:49,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 17:35:49,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-11-13 17:35:49,547 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 115
[2021-11-13 17:35:49,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 108 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 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)
[2021-11-13 17:35:49,549 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:49,549 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 115
[2021-11-13 17:35:49,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:50,090 INFO L129 PetriNetUnfolder]: 331/1074 cut-off events.
[2021-11-13 17:35:50,091 INFO L130 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES.
[2021-11-13 17:35:50,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 1074 events. 331/1074 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7187 event pairs, 60 based on Foata normal form. 0/1041 useless extension candidates. Maximal degree in co-relation 1655. Up to 257 conditions per place.
[2021-11-13 17:35:50,108 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 18 selfloop transitions, 2 changer transitions 45/145 dead transitions.
[2021-11-13 17:35:50,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 145 transitions, 422 flow
[2021-11-13 17:35:50,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-11-13 17:35:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2021-11-13 17:35:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 902 transitions.
[2021-11-13 17:35:50,115 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8714975845410629
[2021-11-13 17:35:50,115 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 902 transitions.
[2021-11-13 17:35:50,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 902 transitions.
[2021-11-13 17:35:50,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:50,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 902 transitions.
[2021-11-13 17:35:50,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.22222222222223) internal successors, (902), 9 states have internal predecessors, (902), 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)
[2021-11-13 17:35:50,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 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)
[2021-11-13 17:35:50,129 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 115.0) internal successors, (1150), 10 states have internal predecessors, (1150), 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)
[2021-11-13 17:35:50,130 INFO L186 Difference]: Start difference. First operand has 117 places, 108 transitions, 226 flow. Second operand 9 states and 902 transitions.
[2021-11-13 17:35:50,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 145 transitions, 422 flow
[2021-11-13 17:35:50,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 145 transitions, 404 flow, removed 0 selfloop flow, removed 2 redundant places.
[2021-11-13 17:35:50,138 INFO L242 Difference]: Finished difference. Result has 130 places, 96 transitions, 218 flow
[2021-11-13 17:35:50,138 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=218, PETRI_PLACES=130, PETRI_TRANSITIONS=96}
[2021-11-13 17:35:50,139 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 10 predicate places.
[2021-11-13 17:35:50,139 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 96 transitions, 218 flow
[2021-11-13 17:35:50,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 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)
[2021-11-13 17:35:50,140 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:50,141 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:50,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-13 17:35:50,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:50,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash -950691551, now seen corresponding path program 1 times
[2021-11-13 17:35:50,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:50,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442147522]
[2021-11-13 17:35:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:50,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:50,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:50,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442147522]
[2021-11-13 17:35:50,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442147522] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:50,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:50,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-11-13 17:35:50,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532190350]
[2021-11-13 17:35:50,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:50,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 17:35:50,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:50,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 17:35:50,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-11-13 17:35:50,486 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115
[2021-11-13 17:35:50,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 96 transitions, 218 flow. Second operand has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 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)
[2021-11-13 17:35:50,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:50,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115
[2021-11-13 17:35:50,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:50,945 INFO L129 PetriNetUnfolder]: 356/833 cut-off events.
[2021-11-13 17:35:50,945 INFO L130 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES.
[2021-11-13 17:35:50,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 833 events. 356/833 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4615 event pairs, 56 based on Foata normal form. 18/814 useless extension candidates. Maximal degree in co-relation 1601. Up to 225 conditions per place.
[2021-11-13 17:35:50,954 INFO L132 encePairwiseOnDemand]: 107/115 looper letters, 22 selfloop transitions, 4 changer transitions 35/139 dead transitions.
[2021-11-13 17:35:50,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 139 transitions, 451 flow
[2021-11-13 17:35:50,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-11-13 17:35:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2021-11-13 17:35:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 983 transitions.
[2021-11-13 17:35:50,959 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8547826086956521
[2021-11-13 17:35:50,960 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 983 transitions.
[2021-11-13 17:35:50,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 983 transitions.
[2021-11-13 17:35:50,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:50,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 983 transitions.
[2021-11-13 17:35:50,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 98.3) internal successors, (983), 10 states have internal predecessors, (983), 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)
[2021-11-13 17:35:50,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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)
[2021-11-13 17:35:50,969 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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)
[2021-11-13 17:35:50,970 INFO L186 Difference]: Start difference. First operand has 130 places, 96 transitions, 218 flow. Second operand 10 states and 983 transitions.
[2021-11-13 17:35:50,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 139 transitions, 451 flow
[2021-11-13 17:35:50,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 139 transitions, 417 flow, removed 14 selfloop flow, removed 8 redundant places.
[2021-11-13 17:35:50,980 INFO L242 Difference]: Finished difference. Result has 121 places, 96 transitions, 232 flow
[2021-11-13 17:35:50,980 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=232, PETRI_PLACES=121, PETRI_TRANSITIONS=96}
[2021-11-13 17:35:50,981 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 1 predicate places.
[2021-11-13 17:35:50,982 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 96 transitions, 232 flow
[2021-11-13 17:35:50,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 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)
[2021-11-13 17:35:50,983 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:50,983 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:50,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-13 17:35:50,983 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:50,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:50,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1012420799, now seen corresponding path program 1 times
[2021-11-13 17:35:50,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:50,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041397978]
[2021-11-13 17:35:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:50,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:51,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:51,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041397978]
[2021-11-13 17:35:51,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041397978] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:51,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:51,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-11-13 17:35:51,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118675620]
[2021-11-13 17:35:51,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:51,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 17:35:51,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:51,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 17:35:51,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-11-13 17:35:51,162 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115
[2021-11-13 17:35:51,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 96 transitions, 232 flow. Second operand has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 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)
[2021-11-13 17:35:51,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:51,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115
[2021-11-13 17:35:51,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:51,625 INFO L129 PetriNetUnfolder]: 263/702 cut-off events.
[2021-11-13 17:35:51,625 INFO L130 PetriNetUnfolder]: For 246/246 co-relation queries the response was YES.
[2021-11-13 17:35:51,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 702 events. 263/702 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3777 event pairs, 73 based on Foata normal form. 16/668 useless extension candidates. Maximal degree in co-relation 1371. Up to 147 conditions per place.
[2021-11-13 17:35:51,632 INFO L132 encePairwiseOnDemand]: 107/115 looper letters, 20 selfloop transitions, 4 changer transitions 34/136 dead transitions.
[2021-11-13 17:35:51,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 136 transitions, 462 flow
[2021-11-13 17:35:51,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-11-13 17:35:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2021-11-13 17:35:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 980 transitions.
[2021-11-13 17:35:51,637 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8521739130434782
[2021-11-13 17:35:51,637 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 980 transitions.
[2021-11-13 17:35:51,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 980 transitions.
[2021-11-13 17:35:51,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:51,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 980 transitions.
[2021-11-13 17:35:51,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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)
[2021-11-13 17:35:51,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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)
[2021-11-13 17:35:51,646 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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)
[2021-11-13 17:35:51,646 INFO L186 Difference]: Start difference. First operand has 121 places, 96 transitions, 232 flow. Second operand 10 states and 980 transitions.
[2021-11-13 17:35:51,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 136 transitions, 462 flow
[2021-11-13 17:35:51,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 136 transitions, 412 flow, removed 20 selfloop flow, removed 10 redundant places.
[2021-11-13 17:35:51,656 INFO L242 Difference]: Finished difference. Result has 122 places, 96 transitions, 236 flow
[2021-11-13 17:35:51,656 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=236, PETRI_PLACES=122, PETRI_TRANSITIONS=96}
[2021-11-13 17:35:51,658 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 2 predicate places.
[2021-11-13 17:35:51,658 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 96 transitions, 236 flow
[2021-11-13 17:35:51,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 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)
[2021-11-13 17:35:51,659 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:51,659 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:51,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-11-13 17:35:51,660 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:51,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:51,661 INFO L85 PathProgramCache]: Analyzing trace with hash 353978745, now seen corresponding path program 1 times
[2021-11-13 17:35:51,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:51,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961019771]
[2021-11-13 17:35:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:51,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:52,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:52,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:52,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961019771]
[2021-11-13 17:35:52,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961019771] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:52,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:52,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2021-11-13 17:35:52,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934960476]
[2021-11-13 17:35:52,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:52,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2021-11-13 17:35:52,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:52,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-11-13 17:35:52,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110
[2021-11-13 17:35:52,202 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 115
[2021-11-13 17:35:52,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 96 transitions, 236 flow. Second operand has 11 states, 11 states have (on average 89.63636363636364) internal successors, (986), 11 states have internal predecessors, (986), 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)
[2021-11-13 17:35:52,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:52,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 115
[2021-11-13 17:35:52,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:52,682 INFO L129 PetriNetUnfolder]: 191/523 cut-off events.
[2021-11-13 17:35:52,682 INFO L130 PetriNetUnfolder]: For 184/184 co-relation queries the response was YES.
[2021-11-13 17:35:52,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 523 events. 191/523 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2130 event pairs, 66 based on Foata normal form. 12/525 useless extension candidates. Maximal degree in co-relation 996. Up to 202 conditions per place.
[2021-11-13 17:35:52,687 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 22 selfloop transitions, 9 changer transitions 28/133 dead transitions.
[2021-11-13 17:35:52,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 133 transitions, 458 flow
[2021-11-13 17:35:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-11-13 17:35:52,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2021-11-13 17:35:52,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1293 transitions.
[2021-11-13 17:35:52,693 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8031055900621118
[2021-11-13 17:35:52,694 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1293 transitions.
[2021-11-13 17:35:52,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1293 transitions.
[2021-11-13 17:35:52,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:52,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1293 transitions.
[2021-11-13 17:35:52,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 92.35714285714286) internal successors, (1293), 14 states have internal predecessors, (1293), 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)
[2021-11-13 17:35:52,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 115.0) internal successors, (1725), 15 states have internal predecessors, (1725), 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)
[2021-11-13 17:35:52,705 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 115.0) internal successors, (1725), 15 states have internal predecessors, (1725), 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)
[2021-11-13 17:35:52,705 INFO L186 Difference]: Start difference. First operand has 122 places, 96 transitions, 236 flow. Second operand 14 states and 1293 transitions.
[2021-11-13 17:35:52,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 133 transitions, 458 flow
[2021-11-13 17:35:52,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 133 transitions, 420 flow, removed 16 selfloop flow, removed 9 redundant places.
[2021-11-13 17:35:52,711 INFO L242 Difference]: Finished difference. Result has 127 places, 99 transitions, 282 flow
[2021-11-13 17:35:52,711 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=282, PETRI_PLACES=127, PETRI_TRANSITIONS=99}
[2021-11-13 17:35:52,715 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 7 predicate places.
[2021-11-13 17:35:52,716 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 99 transitions, 282 flow
[2021-11-13 17:35:52,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 89.63636363636364) internal successors, (986), 11 states have internal predecessors, (986), 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)
[2021-11-13 17:35:52,717 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:52,718 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:52,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-11-13 17:35:52,718 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:52,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:52,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1044358436, now seen corresponding path program 1 times
[2021-11-13 17:35:52,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:52,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554044374]
[2021-11-13 17:35:52,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:52,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:52,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:52,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554044374]
[2021-11-13 17:35:52,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554044374] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:52,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:52,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-13 17:35:52,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386126714]
[2021-11-13 17:35:52,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:52,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 17:35:52,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:52,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 17:35:52,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-11-13 17:35:52,913 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115
[2021-11-13 17:35:52,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 99 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 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)
[2021-11-13 17:35:52,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:52,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115
[2021-11-13 17:35:52,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:53,461 INFO L129 PetriNetUnfolder]: 723/1533 cut-off events.
[2021-11-13 17:35:53,461 INFO L130 PetriNetUnfolder]: For 2878/3016 co-relation queries the response was YES.
[2021-11-13 17:35:53,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4196 conditions, 1533 events. 723/1533 cut-off events. For 2878/3016 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8844 event pairs, 43 based on Foata normal form. 3/1464 useless extension candidates. Maximal degree in co-relation 4128. Up to 435 conditions per place.
[2021-11-13 17:35:53,475 INFO L132 encePairwiseOnDemand]: 105/115 looper letters, 34 selfloop transitions, 7 changer transitions 40/158 dead transitions.
[2021-11-13 17:35:53,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 158 transitions, 696 flow
[2021-11-13 17:35:53,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-11-13 17:35:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2021-11-13 17:35:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 987 transitions.
[2021-11-13 17:35:53,480 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8582608695652174
[2021-11-13 17:35:53,480 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 987 transitions.
[2021-11-13 17:35:53,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 987 transitions.
[2021-11-13 17:35:53,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:53,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 987 transitions.
[2021-11-13 17:35:53,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 98.7) internal successors, (987), 10 states have internal predecessors, (987), 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)
[2021-11-13 17:35:53,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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)
[2021-11-13 17:35:53,489 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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)
[2021-11-13 17:35:53,489 INFO L186 Difference]: Start difference. First operand has 127 places, 99 transitions, 282 flow. Second operand 10 states and 987 transitions.
[2021-11-13 17:35:53,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 158 transitions, 696 flow
[2021-11-13 17:35:53,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 158 transitions, 670 flow, removed 3 selfloop flow, removed 9 redundant places.
[2021-11-13 17:35:53,496 INFO L242 Difference]: Finished difference. Result has 127 places, 103 transitions, 324 flow
[2021-11-13 17:35:53,497 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=324, PETRI_PLACES=127, PETRI_TRANSITIONS=103}
[2021-11-13 17:35:53,498 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 7 predicate places.
[2021-11-13 17:35:53,498 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 103 transitions, 324 flow
[2021-11-13 17:35:53,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 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)
[2021-11-13 17:35:53,499 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:53,499 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:53,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-11-13 17:35:53,499 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:53,500 INFO L85 PathProgramCache]: Analyzing trace with hash 756092336, now seen corresponding path program 1 times
[2021-11-13 17:35:53,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:53,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377581397]
[2021-11-13 17:35:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:53,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:53,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:53,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377581397]
[2021-11-13 17:35:53,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377581397] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:53,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:53,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-11-13 17:35:53,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156673818]
[2021-11-13 17:35:53,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:53,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 17:35:53,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:53,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 17:35:53,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-11-13 17:35:53,634 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115
[2021-11-13 17:35:53,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 103 transitions, 324 flow. Second operand has 7 states, 7 states have (on average 93.14285714285714) internal successors, (652), 7 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)
[2021-11-13 17:35:53,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:53,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115
[2021-11-13 17:35:53,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:54,054 INFO L129 PetriNetUnfolder]: 315/871 cut-off events.
[2021-11-13 17:35:54,055 INFO L130 PetriNetUnfolder]: For 2074/2155 co-relation queries the response was YES.
[2021-11-13 17:35:54,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2838 conditions, 871 events. 315/871 cut-off events. For 2074/2155 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4836 event pairs, 23 based on Foata normal form. 25/877 useless extension candidates. Maximal degree in co-relation 2770. Up to 209 conditions per place.
[2021-11-13 17:35:54,064 INFO L132 encePairwiseOnDemand]: 105/115 looper letters, 43 selfloop transitions, 18 changer transitions 22/160 dead transitions.
[2021-11-13 17:35:54,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 160 transitions, 887 flow
[2021-11-13 17:35:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-11-13 17:35:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2021-11-13 17:35:54,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1084 transitions.
[2021-11-13 17:35:54,069 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8569169960474309
[2021-11-13 17:35:54,070 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1084 transitions.
[2021-11-13 17:35:54,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1084 transitions.
[2021-11-13 17:35:54,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:54,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1084 transitions.
[2021-11-13 17:35:54,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 98.54545454545455) internal successors, (1084), 11 states have internal predecessors, (1084), 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)
[2021-11-13 17:35:54,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 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)
[2021-11-13 17:35:54,107 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 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)
[2021-11-13 17:35:54,107 INFO L186 Difference]: Start difference. First operand has 127 places, 103 transitions, 324 flow. Second operand 11 states and 1084 transitions.
[2021-11-13 17:35:54,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 160 transitions, 887 flow
[2021-11-13 17:35:54,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 160 transitions, 865 flow, removed 5 selfloop flow, removed 5 redundant places.
[2021-11-13 17:35:54,116 INFO L242 Difference]: Finished difference. Result has 134 places, 118 transitions, 495 flow
[2021-11-13 17:35:54,116 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=495, PETRI_PLACES=134, PETRI_TRANSITIONS=118}
[2021-11-13 17:35:54,117 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 14 predicate places.
[2021-11-13 17:35:54,117 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 118 transitions, 495 flow
[2021-11-13 17:35:54,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.14285714285714) internal successors, (652), 7 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)
[2021-11-13 17:35:54,118 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:54,118 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:54,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-11-13 17:35:54,119 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1370597563, now seen corresponding path program 1 times
[2021-11-13 17:35:54,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:54,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657873222]
[2021-11-13 17:35:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:54,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:54,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:54,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657873222]
[2021-11-13 17:35:54,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657873222] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:54,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:54,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-11-13 17:35:54,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982057220]
[2021-11-13 17:35:54,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:54,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-13 17:35:54,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:54,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-13 17:35:54,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-11-13 17:35:54,269 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115
[2021-11-13 17:35:54,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 118 transitions, 495 flow. Second operand has 8 states, 8 states have (on average 93.125) internal successors, (745), 8 states have internal predecessors, (745), 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)
[2021-11-13 17:35:54,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:54,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115
[2021-11-13 17:35:54,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:54,704 INFO L129 PetriNetUnfolder]: 269/743 cut-off events.
[2021-11-13 17:35:54,704 INFO L130 PetriNetUnfolder]: For 2660/2743 co-relation queries the response was YES.
[2021-11-13 17:35:54,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 743 events. 269/743 cut-off events. For 2660/2743 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4169 event pairs, 29 based on Foata normal form. 11/733 useless extension candidates. Maximal degree in co-relation 2730. Up to 173 conditions per place.
[2021-11-13 17:35:54,712 INFO L132 encePairwiseOnDemand]: 105/115 looper letters, 33 selfloop transitions, 18 changer transitions 31/159 dead transitions.
[2021-11-13 17:35:54,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 159 transitions, 951 flow
[2021-11-13 17:35:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-11-13 17:35:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2021-11-13 17:35:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1348 transitions.
[2021-11-13 17:35:54,718 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8372670807453416
[2021-11-13 17:35:54,718 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1348 transitions.
[2021-11-13 17:35:54,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1348 transitions.
[2021-11-13 17:35:54,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:54,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1348 transitions.
[2021-11-13 17:35:54,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 96.28571428571429) internal successors, (1348), 14 states have internal predecessors, (1348), 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)
[2021-11-13 17:35:54,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 115.0) internal successors, (1725), 15 states have internal predecessors, (1725), 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)
[2021-11-13 17:35:54,729 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 115.0) internal successors, (1725), 15 states have internal predecessors, (1725), 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)
[2021-11-13 17:35:54,729 INFO L186 Difference]: Start difference. First operand has 134 places, 118 transitions, 495 flow. Second operand 14 states and 1348 transitions.
[2021-11-13 17:35:54,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 159 transitions, 951 flow
[2021-11-13 17:35:54,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 159 transitions, 881 flow, removed 31 selfloop flow, removed 3 redundant places.
[2021-11-13 17:35:54,747 INFO L242 Difference]: Finished difference. Result has 151 places, 115 transitions, 472 flow
[2021-11-13 17:35:54,748 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=472, PETRI_PLACES=151, PETRI_TRANSITIONS=115}
[2021-11-13 17:35:54,749 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 31 predicate places.
[2021-11-13 17:35:54,749 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 115 transitions, 472 flow
[2021-11-13 17:35:54,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 93.125) internal successors, (745), 8 states have internal predecessors, (745), 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)
[2021-11-13 17:35:54,750 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:54,750 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:54,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-11-13 17:35:54,750 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:54,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:54,751 INFO L85 PathProgramCache]: Analyzing trace with hash -218913626, now seen corresponding path program 1 times
[2021-11-13 17:35:54,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:54,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585911143]
[2021-11-13 17:35:54,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:54,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:55,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:55,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:55,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585911143]
[2021-11-13 17:35:55,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585911143] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:55,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:55,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2021-11-13 17:35:55,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073793808]
[2021-11-13 17:35:55,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:55,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-11-13 17:35:55,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:55,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-11-13 17:35:55,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2021-11-13 17:35:55,099 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 115
[2021-11-13 17:35:55,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 115 transitions, 472 flow. Second operand has 12 states, 12 states have (on average 89.83333333333333) internal successors, (1078), 12 states have internal predecessors, (1078), 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)
[2021-11-13 17:35:55,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:35:55,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 115
[2021-11-13 17:35:55,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:35:55,378 INFO L129 PetriNetUnfolder]: 56/534 cut-off events.
[2021-11-13 17:35:55,378 INFO L130 PetriNetUnfolder]: For 1174/1251 co-relation queries the response was YES.
[2021-11-13 17:35:55,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 534 events. 56/534 cut-off events. For 1174/1251 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3708 event pairs, 4 based on Foata normal form. 1/502 useless extension candidates. Maximal degree in co-relation 1412. Up to 76 conditions per place.
[2021-11-13 17:35:55,383 INFO L132 encePairwiseOnDemand]: 105/115 looper letters, 21 selfloop transitions, 7 changer transitions 7/125 dead transitions.
[2021-11-13 17:35:55,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 125 transitions, 582 flow
[2021-11-13 17:35:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-11-13 17:35:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2021-11-13 17:35:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 913 transitions.
[2021-11-13 17:35:55,388 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7939130434782609
[2021-11-13 17:35:55,388 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 913 transitions.
[2021-11-13 17:35:55,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 913 transitions.
[2021-11-13 17:35:55,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:35:55,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 913 transitions.
[2021-11-13 17:35:55,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.3) internal successors, (913), 10 states have internal predecessors, (913), 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)
[2021-11-13 17:35:55,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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)
[2021-11-13 17:35:55,396 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 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)
[2021-11-13 17:35:55,396 INFO L186 Difference]: Start difference. First operand has 151 places, 115 transitions, 472 flow. Second operand 10 states and 913 transitions.
[2021-11-13 17:35:55,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 125 transitions, 582 flow
[2021-11-13 17:35:55,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 125 transitions, 483 flow, removed 34 selfloop flow, removed 16 redundant places.
[2021-11-13 17:35:55,409 INFO L242 Difference]: Finished difference. Result has 145 places, 114 transitions, 406 flow
[2021-11-13 17:35:55,410 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=406, PETRI_PLACES=145, PETRI_TRANSITIONS=114}
[2021-11-13 17:35:55,411 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 25 predicate places.
[2021-11-13 17:35:55,411 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 114 transitions, 406 flow
[2021-11-13 17:35:55,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 89.83333333333333) internal successors, (1078), 12 states have internal predecessors, (1078), 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)
[2021-11-13 17:35:55,412 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:35:55,413 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:55,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-11-13 17:35:55,413 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:35:55,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:55,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1758490570, now seen corresponding path program 2 times
[2021-11-13 17:35:55,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:55,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345319562]
[2021-11-13 17:35:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:55,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:35:55,517 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:35:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:35:55,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:35:55,659 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 17:35:55,660 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining)
[2021-11-13 17:35:55,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining)
[2021-11-13 17:35:55,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining)
[2021-11-13 17:35:55,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining)
[2021-11-13 17:35:55,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining)
[2021-11-13 17:35:55,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining)
[2021-11-13 17:35:55,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-11-13 17:35:55,669 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:55,675 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-11-13 17:35:55,675 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:35:55,811 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.NullPointerException
at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230)
at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206)
at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155)
at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:155)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2021-11-13 17:35:55,823 INFO L158 Benchmark]: Toolchain (without parser) took 9804.25ms. Allocated memory was 100.7MB in the beginning and 207.6MB in the end (delta: 107.0MB). Free memory was 60.0MB in the beginning and 151.3MB in the end (delta: -91.4MB). Peak memory consumption was 115.4MB. Max. memory is 16.1GB.
[2021-11-13 17:35:55,824 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:35:55,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.99ms. Allocated memory is still 100.7MB. Free memory was 59.7MB in the beginning and 56.6MB in the end (delta: 3.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2021-11-13 17:35:55,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.60ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 53.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:35:55,825 INFO L158 Benchmark]: Boogie Preprocessor took 62.19ms. Allocated memory is still 100.7MB. Free memory was 53.6MB in the beginning and 51.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:35:55,826 INFO L158 Benchmark]: RCFGBuilder took 1225.04ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 51.4MB in the beginning and 89.6MB in the end (delta: -38.2MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB.
[2021-11-13 17:35:55,826 INFO L158 Benchmark]: TraceAbstraction took 7773.80ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 88.6MB in the beginning and 151.3MB in the end (delta: -62.7MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB.
[2021-11-13 17:35:55,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 655.99ms. Allocated memory is still 100.7MB. Free memory was 59.7MB in the beginning and 56.6MB in the end (delta: 3.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 65.60ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 53.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 62.19ms. Allocated memory is still 100.7MB. Free memory was 53.6MB in the beginning and 51.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 1225.04ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 51.4MB in the beginning and 89.6MB in the end (delta: -38.2MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 7773.80ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 88.6MB in the beginning and 151.3MB in the end (delta: -62.7MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- ExceptionOrErrorResult: NullPointerException: null
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2021-11-13 17:35:55,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e73cda23545f4a54d3eef0093038f0fb79909f0b7b9d845db14abda8dd1f5281
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:35:58,453 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:35:58,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:35:58,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:35:58,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:35:58,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:35:58,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:35:58,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:35:58,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:35:58,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:35:58,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:35:58,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:35:58,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:35:58,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:35:58,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:35:58,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:35:58,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:35:58,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:35:58,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:35:58,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:35:58,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:35:58,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:35:58,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:35:58,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:35:58,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:35:58,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:35:58,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:35:58,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:35:58,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:35:58,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:35:58,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:35:58,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:35:58,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:35:58,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:35:58,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:35:58,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:35:58,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:35:58,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:35:58,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:35:58,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:35:58,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:35:58,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-13 17:35:58,657 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:35:58,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:35:58,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:35:58,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:35:58,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:35:58,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:35:58,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:35:58,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:35:58,662 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:35:58,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:35:58,663 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:35:58,664 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:35:58,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:35:58,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:35:58,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:35:58,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:35:58,665 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 17:35:58,665 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 17:35:58,665 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:35:58,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:35:58,666 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:35:58,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:35:58,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:35:58,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:35:58,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:35:58,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:35:58,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:35:58,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:35:58,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:35:58,668 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 17:35:58,668 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 17:35:58,669 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:35:58,669 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:35:58,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:35:58,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:35:58,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 17:35:58,670 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e73cda23545f4a54d3eef0093038f0fb79909f0b7b9d845db14abda8dd1f5281
[2021-11-13 17:35:59,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:35:59,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:35:59,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:35:59,144 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:35:59,145 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:35:59,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2021-11-13 17:35:59,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data/c4ce0f96d/87f1898dea0442f9bd41c1a1af2c4234/FLAG3e5103da5
[2021-11-13 17:35:59,953 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:35:59,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2021-11-13 17:35:59,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data/c4ce0f96d/87f1898dea0442f9bd41c1a1af2c4234/FLAG3e5103da5
[2021-11-13 17:36:00,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/data/c4ce0f96d/87f1898dea0442f9bd41c1a1af2c4234
[2021-11-13 17:36:00,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:36:00,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:36:00,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:36:00,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:36:00,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:36:00,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:36:00" (1/1) ...
[2021-11-13 17:36:00,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a83b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:00, skipping insertion in model container
[2021-11-13 17:36:00,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:36:00" (1/1) ...
[2021-11-13 17:36:00,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:36:00,268 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:36:00,515 WARN L228 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_6b62908a-e30d-4cc1-aad6-827d61af0db2/sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[986,999]
[2021-11-13 17:36:00,859 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:36:00,881 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:36:00,903 WARN L228 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_6b62908a-e30d-4cc1-aad6-827d61af0db2/sv-benchmarks/c/pthread-wmm/safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[986,999]
[2021-11-13 17:36:00,980 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:36:01,044 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:36:01,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01 WrapperNode
[2021-11-13 17:36:01,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:36:01,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:36:01,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:36:01,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:36:01,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:36:01,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:36:01,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:36:01,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:36:01,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:36:01,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:36:01,245 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:36:01,246 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:36:01,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (1/1) ...
[2021-11-13 17:36:01,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:36:01,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:36:01,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:01,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:36:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-11-13 17:36:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:36:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:36:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-13 17:36:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 17:36:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2021-11-13 17:36:01,339 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2021-11-13 17:36:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2021-11-13 17:36:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2021-11-13 17:36:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2021-11-13 17:36:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2021-11-13 17:36:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-11-13 17:36:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:36:01,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:36:01,343 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-11-13 17:36:02,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:36:02,699 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-11-13 17:36:02,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:36:02 BoogieIcfgContainer
[2021-11-13 17:36:02,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:36:02,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:36:02,705 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:36:02,708 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:36:02,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:36:00" (1/3) ...
[2021-11-13 17:36:02,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289773e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:36:02, skipping insertion in model container
[2021-11-13 17:36:02,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:36:01" (2/3) ...
[2021-11-13 17:36:02,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289773e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:36:02, skipping insertion in model container
[2021-11-13 17:36:02,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:36:02" (3/3) ...
[2021-11-13 17:36:02,712 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i
[2021-11-13 17:36:02,718 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-11-13 17:36:02,718 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:36:02,718 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-11-13 17:36:02,718 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-11-13 17:36:02,756 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,761 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,761 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,761 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,762 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,762 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,762 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,762 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,763 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,763 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,763 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,764 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,764 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,764 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,765 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,765 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,765 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,766 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,767 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,767 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,767 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,768 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,768 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,768 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,768 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,769 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,769 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,769 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,770 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,770 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,770 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,770 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,771 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,771 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,771 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,772 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,772 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,772 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,773 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,773 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,773 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,774 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,774 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,774 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,774 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,775 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,775 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,776 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,776 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,776 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,776 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,777 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,777 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,777 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,778 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,778 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,778 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,778 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,779 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,779 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,780 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,780 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,780 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,780 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,781 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,781 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,781 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,782 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,782 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,783 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,783 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,786 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,786 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,787 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,787 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,787 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,787 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,788 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,788 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,788 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,789 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,790 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,790 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,790 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,791 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,791 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,791 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,791 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,792 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,792 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,792 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,792 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,793 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,793 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,794 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,794 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,794 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,795 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,795 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,795 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,795 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,796 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,796 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-13 17:36:02,797 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-11-13 17:36:02,848 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:36:02,855 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:36:02,855 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2021-11-13 17:36:02,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow
[2021-11-13 17:36:02,916 INFO L129 PetriNetUnfolder]: 2/113 cut-off events.
[2021-11-13 17:36:02,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-11-13 17:36:02,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place.
[2021-11-13 17:36:02,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 116 transitions, 247 flow
[2021-11-13 17:36:02,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 235 flow
[2021-11-13 17:36:02,935 INFO L129 PetriNetUnfolder]: 0/46 cut-off events.
[2021-11-13 17:36:02,936 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-11-13 17:36:02,936 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:36:02,937 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:02,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:36:02,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:02,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1823969800, now seen corresponding path program 1 times
[2021-11-13 17:36:02,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:02,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765463057]
[2021-11-13 17:36:02,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:02,957 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:02,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:02,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:02,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 17:36:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:03,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 17:36:03,115 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:03,263 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:03,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:03,385 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:03,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765463057]
[2021-11-13 17:36:03,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765463057] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:03,386 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:03,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 17:36:03,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402315856]
[2021-11-13 17:36:03,389 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:03,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 17:36:03,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:03,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 17:36:03,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 17:36:03,437 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 116
[2021-11-13 17:36:03,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 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)
[2021-11-13 17:36:03,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:36:03,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 116
[2021-11-13 17:36:03,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:36:03,648 INFO L129 PetriNetUnfolder]: 58/489 cut-off events.
[2021-11-13 17:36:03,648 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES.
[2021-11-13 17:36:03,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 489 events. 58/489 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2519 event pairs, 44 based on Foata normal form. 15/474 useless extension candidates. Maximal degree in co-relation 565. Up to 79 conditions per place.
[2021-11-13 17:36:03,656 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 14 selfloop transitions, 2 changer transitions 0/115 dead transitions.
[2021-11-13 17:36:03,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 115 transitions, 277 flow
[2021-11-13 17:36:03,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 17:36:03,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2021-11-13 17:36:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions.
[2021-11-13 17:36:03,672 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9396551724137931
[2021-11-13 17:36:03,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions.
[2021-11-13 17:36:03,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions.
[2021-11-13 17:36:03,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:36:03,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions.
[2021-11-13 17:36:03,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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)
[2021-11-13 17:36:03,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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)
[2021-11-13 17:36:03,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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)
[2021-11-13 17:36:03,692 INFO L186 Difference]: Start difference. First operand has 121 places, 113 transitions, 235 flow. Second operand 3 states and 327 transitions.
[2021-11-13 17:36:03,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 115 transitions, 277 flow
[2021-11-13 17:36:03,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 115 transitions, 272 flow, removed 0 selfloop flow, removed 3 redundant places.
[2021-11-13 17:36:03,701 INFO L242 Difference]: Finished difference. Result has 118 places, 109 transitions, 228 flow
[2021-11-13 17:36:03,703 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=118, PETRI_TRANSITIONS=109}
[2021-11-13 17:36:03,707 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, -3 predicate places.
[2021-11-13 17:36:03,708 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 228 flow
[2021-11-13 17:36:03,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 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)
[2021-11-13 17:36:03,708 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:36:03,709 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:03,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:03,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:03,922 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:36:03,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:03,922 INFO L85 PathProgramCache]: Analyzing trace with hash -635234267, now seen corresponding path program 1 times
[2021-11-13 17:36:03,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:03,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113200581]
[2021-11-13 17:36:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:03,924 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:03,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:03,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:03,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 17:36:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:04,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 17:36:04,079 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:04,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:04,338 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:04,574 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:04,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113200581]
[2021-11-13 17:36:04,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113200581] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:04,578 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:04,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7
[2021-11-13 17:36:04,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538142502]
[2021-11-13 17:36:04,579 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:04,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 17:36:04,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:04,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 17:36:04,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-11-13 17:36:04,587 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 116
[2021-11-13 17:36:04,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 109 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 94.57142857142857) internal successors, (662), 7 states have internal predecessors, (662), 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)
[2021-11-13 17:36:04,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:36:04,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 116
[2021-11-13 17:36:04,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:36:05,287 INFO L129 PetriNetUnfolder]: 483/1166 cut-off events.
[2021-11-13 17:36:05,287 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES.
[2021-11-13 17:36:05,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2051 conditions, 1166 events. 483/1166 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6727 event pairs, 38 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 1998. Up to 106 conditions per place.
[2021-11-13 17:36:05,299 INFO L132 encePairwiseOnDemand]: 106/116 looper letters, 34 selfloop transitions, 9 changer transitions 64/196 dead transitions.
[2021-11-13 17:36:05,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 196 transitions, 642 flow
[2021-11-13 17:36:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-11-13 17:36:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2021-11-13 17:36:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1306 transitions.
[2021-11-13 17:36:05,310 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8660477453580901
[2021-11-13 17:36:05,311 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1306 transitions.
[2021-11-13 17:36:05,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1306 transitions.
[2021-11-13 17:36:05,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:36:05,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1306 transitions.
[2021-11-13 17:36:05,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 100.46153846153847) internal successors, (1306), 13 states have internal predecessors, (1306), 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)
[2021-11-13 17:36:05,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 116.0) internal successors, (1624), 14 states have internal predecessors, (1624), 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)
[2021-11-13 17:36:05,329 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 116.0) internal successors, (1624), 14 states have internal predecessors, (1624), 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)
[2021-11-13 17:36:05,330 INFO L186 Difference]: Start difference. First operand has 118 places, 109 transitions, 228 flow. Second operand 13 states and 1306 transitions.
[2021-11-13 17:36:05,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 196 transitions, 642 flow
[2021-11-13 17:36:05,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 196 transitions, 618 flow, removed 0 selfloop flow, removed 2 redundant places.
[2021-11-13 17:36:05,340 INFO L242 Difference]: Finished difference. Result has 137 places, 114 transitions, 320 flow
[2021-11-13 17:36:05,341 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=320, PETRI_PLACES=137, PETRI_TRANSITIONS=114}
[2021-11-13 17:36:05,342 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, 16 predicate places.
[2021-11-13 17:36:05,343 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 114 transitions, 320 flow
[2021-11-13 17:36:05,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.57142857142857) internal successors, (662), 7 states have internal predecessors, (662), 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)
[2021-11-13 17:36:05,345 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:36:05,345 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:05,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0
[2021-11-13 17:36:05,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:05,558 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:36:05,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:05,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1167724447, now seen corresponding path program 1 times
[2021-11-13 17:36:05,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:05,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588822384]
[2021-11-13 17:36:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:05,561 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:05,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:05,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:05,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 17:36:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:05,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 17:36:05,717 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:05,962 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:06,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:06,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588822384]
[2021-11-13 17:36:06,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588822384] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:06,206 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:06,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11
[2021-11-13 17:36:06,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699924436]
[2021-11-13 17:36:06,206 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:06,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2021-11-13 17:36:06,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:06,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-11-13 17:36:06,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2021-11-13 17:36:06,212 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 116
[2021-11-13 17:36:06,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 114 transitions, 320 flow. Second operand has 11 states, 11 states have (on average 94.54545454545455) internal successors, (1040), 11 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)
[2021-11-13 17:36:06,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:36:06,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 116
[2021-11-13 17:36:06,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:36:06,669 INFO L129 PetriNetUnfolder]: 87/338 cut-off events.
[2021-11-13 17:36:06,675 INFO L130 PetriNetUnfolder]: For 395/395 co-relation queries the response was YES.
[2021-11-13 17:36:06,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 338 events. 87/338 cut-off events. For 395/395 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1328 event pairs, 18 based on Foata normal form. 8/336 useless extension candidates. Maximal degree in co-relation 765. Up to 49 conditions per place.
[2021-11-13 17:36:06,680 INFO L132 encePairwiseOnDemand]: 107/116 looper letters, 24 selfloop transitions, 12 changer transitions 33/146 dead transitions.
[2021-11-13 17:36:06,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 146 transitions, 603 flow
[2021-11-13 17:36:06,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-11-13 17:36:06,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2021-11-13 17:36:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1163 transitions.
[2021-11-13 17:36:06,687 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8354885057471264
[2021-11-13 17:36:06,687 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1163 transitions.
[2021-11-13 17:36:06,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1163 transitions.
[2021-11-13 17:36:06,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:36:06,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1163 transitions.
[2021-11-13 17:36:06,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.91666666666667) internal successors, (1163), 12 states have internal predecessors, (1163), 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)
[2021-11-13 17:36:06,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 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)
[2021-11-13 17:36:06,700 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 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)
[2021-11-13 17:36:06,700 INFO L186 Difference]: Start difference. First operand has 137 places, 114 transitions, 320 flow. Second operand 12 states and 1163 transitions.
[2021-11-13 17:36:06,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 146 transitions, 603 flow
[2021-11-13 17:36:06,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 146 transitions, 517 flow, removed 38 selfloop flow, removed 7 redundant places.
[2021-11-13 17:36:06,717 INFO L242 Difference]: Finished difference. Result has 139 places, 102 transitions, 306 flow
[2021-11-13 17:36:06,718 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=306, PETRI_PLACES=139, PETRI_TRANSITIONS=102}
[2021-11-13 17:36:06,720 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, 18 predicate places.
[2021-11-13 17:36:06,721 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 102 transitions, 306 flow
[2021-11-13 17:36:06,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.54545454545455) internal successors, (1040), 11 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)
[2021-11-13 17:36:06,722 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:36:06,722 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:06,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:06,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:06,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:36:06,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:06,941 INFO L85 PathProgramCache]: Analyzing trace with hash -371517495, now seen corresponding path program 1 times
[2021-11-13 17:36:06,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:06,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074958745]
[2021-11-13 17:36:06,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:06,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:06,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:06,944 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:06,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-13 17:36:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:07,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 17:36:07,137 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:07,382 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:07,756 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:07,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074958745]
[2021-11-13 17:36:07,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074958745] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:07,757 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:07,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12
[2021-11-13 17:36:07,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351071422]
[2021-11-13 17:36:07,758 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:07,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-11-13 17:36:07,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:07,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-11-13 17:36:07,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2021-11-13 17:36:07,766 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 116
[2021-11-13 17:36:07,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 102 transitions, 306 flow. Second operand has 12 states, 12 states have (on average 95.83333333333333) internal successors, (1150), 12 states have internal predecessors, (1150), 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)
[2021-11-13 17:36:07,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:36:07,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 116
[2021-11-13 17:36:07,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:36:08,026 INFO L129 PetriNetUnfolder]: 67/345 cut-off events.
[2021-11-13 17:36:08,027 INFO L130 PetriNetUnfolder]: For 197/207 co-relation queries the response was YES.
[2021-11-13 17:36:08,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 345 events. 67/345 cut-off events. For 197/207 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1456 event pairs, 11 based on Foata normal form. 1/333 useless extension candidates. Maximal degree in co-relation 658. Up to 55 conditions per place.
[2021-11-13 17:36:08,033 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 20 selfloop transitions, 4 changer transitions 8/116 dead transitions.
[2021-11-13 17:36:08,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 116 transitions, 400 flow
[2021-11-13 17:36:08,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 17:36:08,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 17:36:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 684 transitions.
[2021-11-13 17:36:08,037 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8423645320197044
[2021-11-13 17:36:08,037 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 684 transitions.
[2021-11-13 17:36:08,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 684 transitions.
[2021-11-13 17:36:08,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:36:08,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 684 transitions.
[2021-11-13 17:36:08,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.71428571428571) internal successors, (684), 7 states have internal predecessors, (684), 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)
[2021-11-13 17:36:08,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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)
[2021-11-13 17:36:08,046 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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)
[2021-11-13 17:36:08,046 INFO L186 Difference]: Start difference. First operand has 139 places, 102 transitions, 306 flow. Second operand 7 states and 684 transitions.
[2021-11-13 17:36:08,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 116 transitions, 400 flow
[2021-11-13 17:36:08,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 116 transitions, 325 flow, removed 19 selfloop flow, removed 15 redundant places.
[2021-11-13 17:36:08,056 INFO L242 Difference]: Finished difference. Result has 118 places, 102 transitions, 251 flow
[2021-11-13 17:36:08,057 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=118, PETRI_TRANSITIONS=102}
[2021-11-13 17:36:08,058 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, -3 predicate places.
[2021-11-13 17:36:08,058 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 102 transitions, 251 flow
[2021-11-13 17:36:08,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 95.83333333333333) internal successors, (1150), 12 states have internal predecessors, (1150), 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)
[2021-11-13 17:36:08,059 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:36:08,060 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:08,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:08,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:08,274 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:36:08,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:08,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1634344033, now seen corresponding path program 2 times
[2021-11-13 17:36:08,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:08,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68122411]
[2021-11-13 17:36:08,275 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 17:36:08,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:08,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:08,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:08,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-13 17:36:08,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2021-11-13 17:36:08,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 17:36:08,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 17:36:08,435 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:08,699 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:09,006 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:09,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68122411]
[2021-11-13 17:36:09,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68122411] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:09,006 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:09,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12
[2021-11-13 17:36:09,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143876883]
[2021-11-13 17:36:09,007 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:09,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-11-13 17:36:09,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:09,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-11-13 17:36:09,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2021-11-13 17:36:09,011 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 116
[2021-11-13 17:36:09,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 102 transitions, 251 flow. Second operand has 12 states, 12 states have (on average 95.83333333333333) internal successors, (1150), 12 states have internal predecessors, (1150), 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)
[2021-11-13 17:36:09,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:36:09,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 116
[2021-11-13 17:36:09,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:36:09,236 INFO L129 PetriNetUnfolder]: 61/329 cut-off events.
[2021-11-13 17:36:09,238 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES.
[2021-11-13 17:36:09,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 329 events. 61/329 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1400 event pairs, 16 based on Foata normal form. 1/311 useless extension candidates. Maximal degree in co-relation 557. Up to 39 conditions per place.
[2021-11-13 17:36:09,241 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 18 selfloop transitions, 4 changer transitions 10/116 dead transitions.
[2021-11-13 17:36:09,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 116 transitions, 355 flow
[2021-11-13 17:36:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 17:36:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-13 17:36:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 684 transitions.
[2021-11-13 17:36:09,245 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8423645320197044
[2021-11-13 17:36:09,245 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 684 transitions.
[2021-11-13 17:36:09,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 684 transitions.
[2021-11-13 17:36:09,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:36:09,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 684 transitions.
[2021-11-13 17:36:09,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.71428571428571) internal successors, (684), 7 states have internal predecessors, (684), 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)
[2021-11-13 17:36:09,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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)
[2021-11-13 17:36:09,252 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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)
[2021-11-13 17:36:09,252 INFO L186 Difference]: Start difference. First operand has 118 places, 102 transitions, 251 flow. Second operand 7 states and 684 transitions.
[2021-11-13 17:36:09,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 116 transitions, 355 flow
[2021-11-13 17:36:09,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 333 flow, removed 7 selfloop flow, removed 6 redundant places.
[2021-11-13 17:36:09,256 INFO L242 Difference]: Finished difference. Result has 119 places, 102 transitions, 255 flow
[2021-11-13 17:36:09,256 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=119, PETRI_TRANSITIONS=102}
[2021-11-13 17:36:09,259 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, -2 predicate places.
[2021-11-13 17:36:09,260 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 102 transitions, 255 flow
[2021-11-13 17:36:09,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 95.83333333333333) internal successors, (1150), 12 states have internal predecessors, (1150), 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)
[2021-11-13 17:36:09,261 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:36:09,261 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:09,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:09,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:09,475 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:36:09,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:09,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1776948629, now seen corresponding path program 3 times
[2021-11-13 17:36:09,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:09,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497376987]
[2021-11-13 17:36:09,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-11-13 17:36:09,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:09,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:09,477 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:09,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-11-13 17:36:09,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2021-11-13 17:36:09,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 17:36:09,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 25 conjunts are in the unsatisfiable core
[2021-11-13 17:36:09,622 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:10,646 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:15,171 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:15,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497376987]
[2021-11-13 17:36:15,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497376987] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:15,171 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:15,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 14] imperfect sequences [] total 25
[2021-11-13 17:36:15,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379633818]
[2021-11-13 17:36:15,172 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:15,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2021-11-13 17:36:15,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2021-11-13 17:36:15,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600
[2021-11-13 17:36:15,176 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 116
[2021-11-13 17:36:15,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 102 transitions, 255 flow. Second operand has 25 states, 25 states have (on average 85.96) internal successors, (2149), 25 states have internal predecessors, (2149), 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)
[2021-11-13 17:36:15,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-13 17:36:15,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 116
[2021-11-13 17:36:15,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-13 17:36:15,686 INFO L129 PetriNetUnfolder]: 30/232 cut-off events.
[2021-11-13 17:36:15,686 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2021-11-13 17:36:15,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 232 events. 30/232 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 702 event pairs, 0 based on Foata normal form. 1/230 useless extension candidates. Maximal degree in co-relation 375. Up to 24 conditions per place.
[2021-11-13 17:36:15,688 INFO L132 encePairwiseOnDemand]: 104/116 looper letters, 24 selfloop transitions, 8 changer transitions 11/118 dead transitions.
[2021-11-13 17:36:15,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 118 transitions, 387 flow
[2021-11-13 17:36:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-11-13 17:36:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2021-11-13 17:36:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1220 transitions.
[2021-11-13 17:36:15,694 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7512315270935961
[2021-11-13 17:36:15,694 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1220 transitions.
[2021-11-13 17:36:15,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1220 transitions.
[2021-11-13 17:36:15,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-13 17:36:15,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1220 transitions.
[2021-11-13 17:36:15,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 87.14285714285714) internal successors, (1220), 14 states have internal predecessors, (1220), 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)
[2021-11-13 17:36:15,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 116.0) internal successors, (1740), 15 states have internal predecessors, (1740), 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)
[2021-11-13 17:36:15,705 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 116.0) internal successors, (1740), 15 states have internal predecessors, (1740), 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)
[2021-11-13 17:36:15,705 INFO L186 Difference]: Start difference. First operand has 119 places, 102 transitions, 255 flow. Second operand 14 states and 1220 transitions.
[2021-11-13 17:36:15,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 118 transitions, 387 flow
[2021-11-13 17:36:15,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 118 transitions, 365 flow, removed 7 selfloop flow, removed 6 redundant places.
[2021-11-13 17:36:15,710 INFO L242 Difference]: Finished difference. Result has 127 places, 102 transitions, 263 flow
[2021-11-13 17:36:15,710 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=263, PETRI_PLACES=127, PETRI_TRANSITIONS=102}
[2021-11-13 17:36:15,711 INFO L334 CegarLoopForPetriNet]: 121 programPoint places, 6 predicate places.
[2021-11-13 17:36:15,711 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 102 transitions, 263 flow
[2021-11-13 17:36:15,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 85.96) internal successors, (2149), 25 states have internal predecessors, (2149), 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)
[2021-11-13 17:36:15,713 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-13 17:36:15,713 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:15,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:15,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:15,937 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] ===
[2021-11-13 17:36:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:15,937 INFO L85 PathProgramCache]: Analyzing trace with hash -609217903, now seen corresponding path program 4 times
[2021-11-13 17:36:15,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:15,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221144718]
[2021-11-13 17:36:15,938 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2021-11-13 17:36:15,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:15,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:15,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:15,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2021-11-13 17:36:16,123 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-11-13 17:36:16,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat
[2021-11-13 17:36:16,123 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:36:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:36:16,407 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2021-11-13 17:36:16,407 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 17:36:16,408 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining)
[2021-11-13 17:36:16,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining)
[2021-11-13 17:36:16,410 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining)
[2021-11-13 17:36:16,411 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining)
[2021-11-13 17:36:16,411 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining)
[2021-11-13 17:36:16,411 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining)
[2021-11-13 17:36:16,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:16,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:16,636 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1]
[2021-11-13 17:36:16,642 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-11-13 17:36:16,642 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:36:16,771 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.NullPointerException
at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230)
at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206)
at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155)
at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:155)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2021-11-13 17:36:16,775 INFO L158 Benchmark]: Toolchain (without parser) took 16599.47ms. Allocated memory was 96.5MB in the beginning and 174.1MB in the end (delta: 77.6MB). Free memory was 59.8MB in the beginning and 84.0MB in the end (delta: -24.2MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB.
[2021-11-13 17:36:16,775 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:36:16,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 867.73ms. Allocated memory is still 96.5MB. Free memory was 59.6MB in the beginning and 65.8MB in the end (delta: -6.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB.
[2021-11-13 17:36:16,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.16ms. Allocated memory is still 96.5MB. Free memory was 65.8MB in the beginning and 62.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:36:16,777 INFO L158 Benchmark]: Boogie Preprocessor took 83.16ms. Allocated memory is still 96.5MB. Free memory was 62.8MB in the beginning and 60.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:36:16,778 INFO L158 Benchmark]: RCFGBuilder took 1457.48ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 60.3MB in the beginning and 83.5MB in the end (delta: -23.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB.
[2021-11-13 17:36:16,778 INFO L158 Benchmark]: TraceAbstraction took 14069.30ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 82.9MB in the beginning and 84.0MB in the end (delta: -1.1MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB.
[2021-11-13 17:36:16,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 867.73ms. Allocated memory is still 96.5MB. Free memory was 59.6MB in the beginning and 65.8MB in the end (delta: -6.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 115.16ms. Allocated memory is still 96.5MB. Free memory was 65.8MB in the beginning and 62.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 83.16ms. Allocated memory is still 96.5MB. Free memory was 62.8MB in the beginning and 60.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 1457.48ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 60.3MB in the beginning and 83.5MB in the end (delta: -23.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 14069.30ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 82.9MB in the beginning and 84.0MB in the end (delta: -1.1MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- ExceptionOrErrorResult: NullPointerException: null
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2021-11-13 17:36:16,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b62908a-e30d-4cc1-aad6-827d61af0db2/bin/uautomizer-YU5uOKAj3y/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:
ERROR: ExceptionOrErrorResult: NullPointerException: null